There is something almost storybook-like about Myrtle Beach, where the Atlantic seems to write the daily schedule in waves, breezes, clouds, and sunshine.
A morning can begin with bright clear skies, turn humid by afternoon, and then finish with a quick coastal shower that seems to arrive simply because the ocean felt like saying hello. Thats the personality of coastal South Carolina weather it is rarely boring.
If you’re planning a vacation, researching a move, studying South Carolina climate, or simply wondering what the beach feels like outside the postcard-perfect summer months, understanding the area’s Climate and Weather averages can be surprisingly useful. Temperature is only part of the story. Precipitation, Humidity, Wind, Visibility, and seasonal changes all shape how a day actually feels.
This guide explores Myrtle Beach weather averages, monthly patterns, temperature ranges, rainfall, atmospheric conditions, and seasonal differences. It also explains how historical climate information can help you understand what is typical, while remembering that today’s Current weather can still wander quite a bit from an average.
| Metric | Myrtle Beach Climate & Weather Average |
|---|---|
| Location | Myrtle Beach, South Carolina, USA |
| Climate Data Period | 1992–2021 |
| Average High Temperature | 88°F (31°C) |
| Average Low Temperature | 38°F (3°C) |
| Mean Temperature | 64°F (18°C) |
| Annual Precipitation | 1.87 in (47.5 mm) per month average |
| Average Humidity | 74% |
| Average Dew Point | 55°F (13°C) |
| Average Wind Speed | 15 mph (24 km/h) |
| Average Air Pressure | 30.07 inHg (about 1018 mbar) |
| Average Visibility | 9 miles (about 14 km) |
| Hottest Month | July |
| Coldest Month | January |
| Weather Station | Myrtle Beach Air Force Base |
| Climate Type | Humid subtropical, coastal climate |
The table above summarizes the Climate & Weather Averages in Myrtle Beach using the 1992–2021 weather-report dataset.
Monthly Myrtle Beach Weather Averages
| Month | Average High | Average Low | Mean Temp. | Precipitation |
|---|---|---|---|---|
| January | 57°F (14°C) | 38°F (3°C) | 47°F (8°C) | 1.44 in |
| February | 59°F (15°C) | 40°F (4°C) | 50°F (10°C) | 1.69 in |
| March | 65°F (18°C) | 46°F (8°C) | 56°F (13°C) | — |
| April | — | — | — | — |
| May | — | — | — | — |
| June | — | — | — | — |
| July | 88°F (31°C) | — | — | — |
| August | 89°F (32°C) | 73°F (23°C) | 81°F (27°C) | 77.6 mm* |
| September | — | — | — | — |
| October | — | — | — | — |
| November | — | — | — | — |
| December | — | — | — | — |
Understanding Myrtle Beach Climate and Weather Averages
Myrtle Beach climate is generally humid subtropical, influenced strongly by its position beside the Atlantic Ocean. Summers tend to be hot, humid, and wet, while winters are comparatively mild.
Spring and autumn are often the comfortable middle chapters, with changing temperatures and fewer of the intense summer heat spells.
When people search for weather averages, they’re usually looking for something more useful than a single temperature. They want to know whether January is jacket weather, whether August is unbearably humid, and whether an October beach trip is still realistic.
Average conditions help answer those questions, although averages never promise exactly what the sky will do on your particular Tuesday.
Climate information is normally built from long-term observations rather than one unusual year. NOAA explains that U.S. Climate Normals are 30-year averages used to put daily weather into historical context, and the current standard period is 1991 2020.
That distinction matters. Historic weather tells us what actually happened on particular dates, while climate averages describe what is generally expected over a long period. A rainy August afternoon doesn’t mean August is a rainy month every year; it simply means weather has its own little personality.
Myrtle Beach Monthly Climate and Temperature
Looking at Myrtle Beach weather by month gives a much clearer picture than relying on one annual average. The transition from winter to spring, the rising heat of summer, and the gradual cooling of autumn are quite noticeable.
The supplied climate dataset identifies July as the Hottest month, with an average temperature of about 27°C, while January is listed as the Coldest month, averaging about 8°C. These figures are useful as broad climate indicators, although individual days can be considerably warmer or cooler.
Here is a practical overview of the Myrtle Beach temperature by month:
- January brings the coolest conditions, with mild daytime weather but noticeably cooler nights.
- February remains relatively cool, though warmer spells begin appearing.
- March introduces more spring-like weather and gradually rising temperatures.
- April is generally pleasant, with warmer afternoons and comfortable outdoor conditions.
- May feels distinctly warmer and begins the transition toward summer.
- June brings hot afternoons, increasing humidity, and more moisture in the atmosphere.
- July is the peak of summer and the reported hottest month, with an average around 27°C.
- August remains hot and humid, with a reported high of 30°C, low of 23°C, and mean of 27°C.
- September starts the slow move away from peak summer heat.
- October often offers comfortable temperatures and a more relaxed coastal atmosphere.
- November becomes cooler, particularly in the mornings and evenings.
- December brings mild winter conditions, although cold fronts can still produce chilly periods.
For travelers, this means the phrase Myrtle Beach average temperatures needs a little context. A monthly mean doesn’t tell you whether you’ll spend your afternoon in shorts or reach for a light jacket after sunset.
Myrtle Beach Weather Averages: January Through March
Winter in Myrtle Beach is much gentler than winter in many northern parts of the USA. January is generally the coolest month, but truly severe cold is not the normal coastal experience.
January can offer crisp mornings, mild afternoons, and occasional cold snaps. The Atlantic Ocean moderates the temperature somewhat, though strong winter fronts can still make the beach feel surprisingly chilly. If you’re visiting then, layers are smarter than packing one giant winter coat and hoping for the best.
February begins the gradual climb toward spring. Temperatures can still fluctuate, and cloudy or breezy days aren’t unusual, but warmer afternoons become more common.
By March, spring starts showing up properly. Trees and plants respond to the warmer conditions, daylight becomes more inviting, and outdoor activities become increasingly comfortable. The weather isn’t perfectly predictable, of course March has a habit of changing its mind.
Myrtle Beach Summer Weather: June Through August
For many visitors, Myrtle Beach summer weather is the main attraction. Warm sand, ocean water, long daylight hours, and hot afternoons create the classic beach-season experience.
June brings a substantial increase in temperature and humidity. The combination can make an 80-degree day feel much warmer, especially when the wind becomes light. Afternoon thunderstorms can also occur as warm, moist air builds over the region.
July is identified as the hottest month in Myrtle Beach, with an average temperature of approximately 27°C in the supplied dataset. High temperatures can climb well above the monthly mean, and humidity often becomes a major part of how the weather feels.
Then comes August, which keeps the summer atmosphere firmly in place. The provided figures list an August high of 30°C, an August low of 23°C, and an August mean of 27°C. The reported August humidity is 79%, with a dew point of 22°C.
That dew point figure is worth noticing. Temperature tells you how warm the air is; dew point gives you a better clue about how muggy it may feel. A dew point around 22°C can make a sunny afternoon feel sticky, particularly if you’re walking along the beach without much breeze.
The same dataset gives August precipitation as 77.6 mm, making it the listed Wettest month. Summer rainfall can arrive in bursts rather than as hours of continuous rain, so one minute can look like beach weather and the next can look like someone opened the sky’s shower tap.
Myrtle Beach August Weather in More Detail
Because August combines heat, moisture, and coastal influences, it deserves its own closer look.
The supplied August figures are:
- High temperature: 30°C
- Low temperature: 23°C
- Mean temperature: 27°C
- Precipitation: 77.6 mm
- Humidity: 79%
- Dew point: 22°C
- Wind: 22 km/h
- Air pressure: 1017 mbar
- Visibility: 14 km
These numbers paint a useful picture of Myrtle Beach August weather. It is warm from morning into evening, moisture is significant, and winds can provide at least some relief. A 22 km/h wind is noticeable, particularly near open water, where even warm air can feel fresher.
The reported 1017 mbar atmospheric pressure represents a fairly ordinary pressure reading rather than something visitors need to worry about. Likewise, 14 km visibility suggests generally useful viewing conditions, although haze, clouds, rain, or coastal moisture can reduce visibility at particular times.
If you’re planning outdoor activities in August, early morning is often the friendlier part of the day. By afternoon, heat and humidity can become the real challenge, even when the temperature itself doesn’t look outrageous on paper.
Myrtle Beach Fall Weather: September Through November
Autumn quietly changes the mood of coastal South Carolina weather. September can still feel very summery, while October often becomes noticeably more comfortable.
September retains warmth and humidity, especially early in the month. As the weeks pass, however, temperatures generally begin easing downward.
October is one of those months that can feel almost perfectly balanced. The oppressive edge of summer starts disappearing, but the weather hasn’t yet developed the coolness associated with winter. For people who like beaches without the full intensity of midsummer, this can be an appealing period.
By November, temperatures are clearly cooler. Mornings and evenings may require an extra layer, and the beach can feel quieter and more contemplative. It’s a different Myrtle Beach, but not a lesser one.
Myrtle Beach Winter Weather: December Through February
The Myrtle Beach winter weather experience is generally mild compared with much of the United States. Snow is not the defining feature here, and the coast frequently experiences relatively gentle winter temperatures.
December can still produce comfortable afternoons, although cold fronts may arrive suddenly. January is the listed coldest month, while February begins the slow return toward spring.
Winter is also a useful reminder that a beach destination isn’t necessarily warm every single day. The ocean may still be there looking beautiful, but you might appreciate that view more from a café window when a chilly wind is blowing.
Precipitation and Rainfall in Myrtle Beach
Rain is an important part of understanding Myrtle Beach precipitation. The supplied dataset gives 568.5 mm annual precipitation and 77.6 mm August precipitation.
These values should be treated as dataset-specific figures rather than universal climate normals, because precipitation totals vary depending on the station, period, and methodology used.
NOAA’s official climate-normal information demonstrates why this distinction is important: climate normals are calculated for defined periods and locations, and updated datasets can change the baseline used for comparison.
For practical purposes, rainfall in Myrtle Beach can be highly seasonal in character. Summer moisture often arrives through showers and thunderstorms, while tropical systems can occasionally produce much heavier rainfall. A forecast showing rain doesn’t always mean an entire day will be washed out.
When checking Myrtle Beach rainfall by month, travelers should look beyond the total millimeters. The number of rainy days, duration of individual showers, storm intensity, and time of day all influence the actual experience.
Myrtle Beach Humidity and Dew Point
Myrtle Beach humidity is one of the most noticeable characteristics of summer weather.
Humidity represents the amount of water vapor in the air, while dew point provides another useful measure of atmospheric moisture. When dew points rise, the air generally feels more humid and sweat evaporates less efficiently from your skin.
The supplied August figures 79% humidity and a 22°C dew point describe a distinctly moist summer atmosphere. That’s why 30°C at the beach can feel more tiring than the same temperature in a dry climate.
For visitors, the practical response is simple: drink water, take shade breaks, wear breathable clothing, and don’t schedule every outdoor activity for the hottest part of the afternoon. The beach will still be there at 8 a.m., promise.
Wind, Visibility, and Atmospheric Conditions
Wind is another major part of Myrtle Beach weather conditions. The supplied dataset identifies April as the Windiest month, with a reported wind speed of 28 km/h. August is listed at 22 km/h.
Wind can completely change the sensation of a coastal day. A warm afternoon with a steady sea breeze can feel wonderfully comfortable, while a stronger breeze can make cooler weather feel colder than the thermometer suggests.
The supplied August air pressure is 1017 mbar, while visibility is listed at 14 km. These atmospheric measurements are useful for understanding general conditions, but real-time values can shift considerably from hour to hour.
A Weather station records observations such as temperature, pressure, wind, and precipitation. These measurements form the foundation of much of the Climate data, Weather reports, and Historical climate data used to describe a location.
Myrtle Beach Historical Weather and Climate Data
People sometimes search for Myrtle Beach historical weather when planning an event or trying to understand whether a particular month is usually pleasant. Historical records can answer questions that an average cannot.
For example, an average temperature doesn’t tell you the hottest temperature ever recorded on a date. It also doesn’t tell you whether a storm occurred during a particular vacation week.
The 1992–2021 period supplied for this dataset represents a long historical window, but it should not automatically be confused with NOAA’s official U.S. 30-year climate-normal period of 1991 2020. NOAA explains that official normals are updated every decade to keep the baseline relevant.
This is why readers comparing websites may see slightly different annual averages, monthly averages, or climate statistics. Different stations, geographic locations, observation periods, and calculation methods can all produce differences.
Myrtle Beach Air Force Base and Historical Location Data
The name Myrtle Beach Air Force Base may appear in historical weather or geographic searches connected with the area. The former military installation was an important part of Myrtle Beach’s history, and historical references to the site can sometimes appear alongside older geographic or weather information.
For climate research, however, it’s important to identify the exact weather station behind a dataset. A station a few miles away can have somewhat different rainfall, wind, or temperature observations from another station, particularly in a coastal environment.
This is one reason professional climate research always pays attention to station location rather than treating every number labeled “Myrtle Beach” as interchangeable.
Current Weather vs. Climate Averages
One of the easiest mistakes is confusing Current weather with Climate.
Climate describes long-term patterns. Current weather describes what is happening now. A Weather forecast predicts upcoming conditions, while Historic weather tells you what occurred previously.
For someone planning a trip, the best approach is to use them together:
- Use annual weather averages to understand the broad climate.
- Use monthly climate information to choose a season.
- Check the 14-day forecast closer to your trip.
- Use Hourly weather forecasts for beach days and outdoor activities.
- Check real-time warnings when severe weather is possible.
- Compare actual conditions with historical expectations rather than assuming an average guarantees anything.
Climate tells you the personality of the place. Forecasts tell you what the place may be wearing tomorrow.
What Is the Best Time to Visit Myrtle Beach?
There isn’t one universally perfect month because travelers want different things.
If your priority is classic summer beach weather, June, July, and August are obvious choices. They bring warmth, long days, and the strongest summer atmosphere, but also higher humidity and a greater chance of showers or thunderstorms.
If you prefer milder temperatures, spring and autumn can be more appealing. April, May, September, and October can provide a pleasant compromise between warmth and comfort.
Winter works for travelers who don’t require tropical temperatures. The beach is quieter, the atmosphere changes, and mild days can still be enjoyable.
In other words, the “best” month is less about finding perfect weather and more about deciding which version of Myrtle Beach you want to meet.
A Simple Guide to Myrtle Beach Seasonal Climate
The Myrtle Beach seasonal climate can be summarized like this:
- Winter: Mild, cooler, occasionally windy, with chilly periods possible.
- Spring: Increasingly warm, with comfortable outdoor conditions and rising wind at times.
- Summer: Hot, humid, and wetter, with thunderstorms and coastal breezes possible.
- Autumn: Gradual cooling, often comfortable and less intensely humid than summer.
That four-season rhythm is one reason the area attracts visitors beyond the traditional summer vacation period. Each season changes the color, pace, and feeling of the coast.
How to Use Myrtle Beach Weather Averages for Trip Planning
The smartest way to use Myrtle Beach weather averages is not to memorize every number. Instead, turn the information into practical decisions.
For a summer trip, pack breathable clothes, sunscreen, sunglasses, and something lightweight for sudden rain. If you’re visiting in spring or autumn, layers give you flexibility because mornings and afternoons can feel quite different.
For winter, don’t assume “South Carolina” automatically means warm. A light jacket or warmer layer is still useful, especially around sunrise, sunset, and windy beaches.
And if your plans depend heavily on outdoor activities, leave some breathing room in the itinerary. Coastal weather occasionally rearranges everyone’s plans without asking permission.
Why Climate Averages Should Be Read With Care
A climate average is a useful guide, not a contract.
Suppose July has an average temperature of 27°C. That does not mean every July afternoon will be exactly 27°C. Some days may be cooler, others substantially hotter. Likewise, an annual precipitation number doesn’t mean rainfall is distributed evenly across all twelve months.
Climate statistics are most valuable when they reveal patterns rather than pretending to predict individual days.
The official NOAA approach reinforces this idea. Climate normals are standardized long-term reference points used to compare conditions with what is typical for a location.
Frequently Asked Question
myrtle beach average temperature by month
Myrtle Beach temperatures vary by season, with mild winters and hot, humid summers. Average temperatures generally range from the 50s°F in winter to the 80s°F in summer.
myrtle beach climate
Myrtle Beach has a humid subtropical climate, featuring warm summers, mild winters, and rainfall throughout the year. Coastal breezes can make summer conditions feel more comfortable near the ocean.
myrtle beach weather year round
Myrtle Beach weather stays relatively mild year round, with warm summers and cool-to-mild winters. Spring and fall are especially pleasant for outdoor activities and beach visits.
myrtle beach average temperature
The average temperature in Myrtle Beach changes considerably throughout the year, from cooler winter days to warm summer conditions. July is typically among the hottest months.
average temperature myrtle beach
The average temperature in Myrtle Beach reflects its coastal climate, with moderate winters and hot summers. Temperatures can vary from month to month, but the beach area generally avoids extreme cold.
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Final Thoughts on Myrtle Beach Climate and Weather
Myrtle Beach has the kind of climate that rewards curiosity. Winter is relatively gentle, spring slowly opens the door to warmth, summer arrives with heat and humidity, and autumn gradually softens everything again. The Atlantic Ocean keeps its own rhythm throughout it all.
The supplied figures highlight several useful landmarks: July as the hottest month at about 27°C average, January as the coldest at about 8°C, August as the wettest month at 77.6 mm, and April as the windiest at 28 km/h.
August itself stands out with a 30°C high, 23°C low, 79% humidity, 22°C dew point, 22 km/h wind, 1017 mbar pressure, and 14 km visibility.
Still, those numbers are only the beginning. The real value of Myrtle Beach climate statistics comes from understanding what they mean in everyday life. A warm temperature can feel hotter when humidity climbs.
A windy day can feel cooler beside the ocean. A forecast for rain might mean one dramatic afternoon shower rather than an entire ruined vacation.
Whether you’re planning a summer getaway, researching South Carolina weather averages, comparing monthly climate averages, or simply curious about life along the coast, long-term climate data gives you a much better starting point.
And perhaps that’s the nicest thing about weather research: after all the numbers, charts, millimeters, degrees Celsius, pressure readings, and historical observations, you’re still left with something wonderfully unpredictable the next day.
