Climate and monthly weather forecast
Myrtle Beach, SC

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The glorious Myrtle Beach in South Carolina, with lit city buildings
The glorious Myrtle Beach in South Carolina, with lit city buildings

The climate of Myrtle Beach

Myrtle Beach, located in the state of South Carolina, enjoys a humid subtropical climate, according to the Köppen climate classification. The position of Myrtle Beach along the eastern coastline of the United States further contributes to its prominent climate conditions. The geographical placement exposes this city to warm ocean currents, resulting in pleasant temperature ranges throughout the year.

Comprehensive examination of the climatic data reveals that the weather conditions experienced in Myrtle Beach display a high degree of diversity over the entire year. Temperature highs fluctuate between 54.3°F (12.4°C) in January to 86.7°F (30.4°C) in July while temperature lows vary from 42.1°F (5.6°C) in January to 76.3°F (24.6°C) in July. It is interesting to note that Myrtle Beach experiences a significant range of sea temperature, which starts from a cool 57.7°F (14.3°C) in February and March and heats up to a balmy 82.9°F (28.3°C) in August.

Myrtle Beach is identified for its relatively high humidity that averages around 75-78%. Rainfall maintains its presence throughout the year with average monthly figures from 1.02" (26mm) in January to 4.53" (115mm) in August. Snowfall is rare, reported only in January and December with a negligible amount of 0.04" (1mm). Unique weather patterns include the relatively high UV index from June to August reaching a value of 7. This, combined with an average of 14.4 hours of daylight in June, make this period particularly radiant.

The best time to visit Myrtle Beach

The most appropriate period to visit Myrtle Beach gravitates towards the milder climate conditions which occur between April to June. During these months, temperature highs range from 70.3°F (21.3°C) to 84.2°F (29°C) and lows range from 58.6°F (14.8°C) to 73°F (22.8°C). This period also benefits from an increased amount of daylight, from 13 hours in April to 14.4 hours in June. Alongside the pleasant temperatures and adequate sunshine, spring also marks the departure of the heavy rainfall experienced in the winter, making this the best time to revel in the outdoor attractions of Myrtle Beach.

The worst time to visit Myrtle Beach

On the opposite spectrum, the least ideal time to tour Myrtle Beach is during the peak summer months from July to August. Besides the recorded peak temperatures of 86.7°F (30.4°C) in July and 85.6°F (29.8°C) in August, this time frame coincides with the highest rainfall of 2.99" (76mm) and 4.53" (115mm) respectively. Furthermore, the humidity levels peak during these months, leading to oppressive atmospheric conditions.

Spring weather in Myrtle Beach

Spring in Myrtle Beach unfolds from March to May, a period welcoming warmer temperatures. Highs progressively increase from 62.2°F (16.8°C) to 77.5°F (25.3°C) and lows shift from 49.6°F (9.8°C) to 66.7°F (19.3°C). Despite the mild increase in rainfall, the period enjoys longer days with sunlight duration surpassing 13 hours by May.

Summer weather in Myrtle Beach

Summer presents intense heat and humidity in Myrtle Beach, spanning from June to August. During this season, temperature highs settle between 84.2°F (29°C) and 86.7°F (30.4°C), while nighttime temperatures generally stay above the 70°F (21.1°C) mark. Coastal influence moderates the soaring temperatures but contributes to enhanced rainfall, peaking at 4.53" (115mm) in August.

Autumn weather in Myrtle Beach

Autumn, from September to November, holds a pleasant atmosphere. Temperature highs decline from 81.7°F (27.6°C) to 63.5°F (17.5°C) and lows range from 71.4°F (21.9°C) to 51.1°F (10.6°C). While rainfall amounts decrease, the season boasts of longer hours of sunshine, aiding in the procession of outdoor activities.

Winter weather in Myrtle Beach

Myrtle Beach observes winter from December to February. During this time, daily high temperatures range from 54.3°F (12.4°C) to 57.4°F (14.1°C) and the mercury drops to 42.1°F (5.6°C) to 44.8F°F at night. While snowfall is minimal, rainfall tends to dominate, reaching 2.64" (67mm) in December and 1.54" (39mm) during January and February. Despite the chilly weather, Myrtle Beach provides a milder winter experience compared to many other regions in the United States.

Weather in January

The New Year ushers in cooler temperatures to Myrtle Beach, South Carolina with the city experiencing mild winters. January marks the beginning of the year with relatively cool weather, with a high average temperature of 54.3°F (12.4°C) and a low of 42.1°F (5.6°C). Weather in January »

Weather in February

As the calendars flip to February, the temperatures in Myrtle Beach, South Carolina, become slightly more agreeable, alleviating the chill that characterizes January. The modest increase in temperature reveals an average high of 57.4°F (14.1°C) and low of 44.8°F (7.1°C). Weather in February »

Weather in March

March witnesses the arrival of spring in Myrtle Beach, South Carolina, presenting a transition from the cold winter months marked by a noteworthy upsurge in temperature. During this month, temperatures see a moderate increase with averages peaking at 62.2°F (16.8°C) and dipping to 49.6°F (9.8°C). Weather in March »

Weather in April

April unfolds with the continued performance of spring, revealing a further rise in temperature in Myrtle Beach, South Carolina. The familiar trend of increasing temperature continues with April’s high hitting an average of 70.3°F (21.3°C) and the low average settling at 58.6°F (14.8°C). Weather in April »

Weather in May

The month of May introduces the shift towards the warm summer weather in Myrtle Beach, South Carolina marked by rising temperatures. The highest average temperature during this period is noted at 77.5°F (25.3°C), while the lowest average temperature would be around 66.7°F (19.3°C). Weather in May »

Weather in June

As summer officially sets in with June, Myrtle Beach, South Carolina, experiences one of the warmest periods of the year. The month of June is typically hot, with average high temperatures soaring to 84.2°F (29°C) and the lows floating around 73°F (22.8°C). Weather in June »

Weather in July

July steps in with Myrtle Beach, South Carolina, being in the throes of summer, revealing the highest temperatures of the year. It is the peak of summer with average temperatures hitting a high of 86.7°F (30.4°C) and a low of 76.3°F (24.6°C). Weather in July »

Weather in August

August unfolds a tad cooler than July in Myrtle Beach, South Carolina but continues to exhibit a palpable summer vibe. This month is characterized by a slight drop in temperature with highs at an average of 85.6°F (29.8°C) and a low at 75.6°F (24.2°C). Weather in August »

Weather in September

September marks the end of summer and the onset of fall in Myrtle Beach, South Carolina, accompanied by a noticeable drop in temperature compared to August. Average highs fall to 81.7°F (27.6°C) while the lows hit 71.4°F (21.9°C). Weather in September »

Weather in October

As Myrtle Beach, South Carolina, ushers in October, there’s a tangible shift to fall weather, with temperatures dropping and rainfall decreasing. Average high temperatures settle at around 73.6°F (23.1°C) and average lows at about 61.7°F (16.5°C). Weather in October »

Weather in November

November brings further cooling to Myrtle Beach, South Carolina, as the city prepares for the upcoming winter season. The city experiences a significant reduction in temperature with an average high around 63.5°F (17.5°C) and a low of 51.1°F (10.6°C). Weather in November »

Weather in December

Rounding up the year, December presents the coldest weather in Myrtle Beach, South Carolina, with a return to the winter season. Lower temperatures characterize this month as the average high temperature dips to 58.3°F (14.6°C), and the lows hover around 46.9°F (8.3°C). Weather in December »
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

Temperature readings reach their annual highs in January, averaging 54.3°F (12.4°C) and a minimum average of 42.1°F (5.6°C).

What are the least humid months?

January and November, with an average relative humidity of 74%, are the least humid months in Myrtle Beach.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 10.3 days and typically collects 1.02" (26mm) of precipitation.

How much does it rain?

In Myrtle Beach, during the entire year, the rain falls for 166.5 days and collects up to 28.78" (731mm) of precipitation.

When does it snow?

January, February and December are months with snowfall.

How much does it snow?

In Myrtle Beach, during the entire year, snow falls for 1 days and aggregates up to 0.16" (4mm) of snow.

What is the month with the lowest UV index in Myrtle Beach?

January is the month with the lowest UV index, with an average maximum UV index of 3.

What is the snowiest month?

The month with the most snowfall is February, when snow falls for 0.3 days and typically aggregates up to 0.08" (2mm) of snow.

When it does not snow?

March through November are months without snowfall.

What is the month with the coldest ocean?

March is the month with the coldest seawater, with an average ocean temperature of 57.7°F (14.3°C).

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the most humid month?

May, June, August and December, with an average relative humidity of 78%, are most humid months in Myrtle Beach.

When are the longest days in Myrtle Beach?

With an average of 14h and 24min of daylight, June has the longest days of the year.

What are the months with the highest UV index?

June through August, with an average maximum UV index of 7, are months with the highest UV index in Myrtle Beach.

What time of the year is the hottest?

July is Myrtle Beach's warmest month, registering average high temperatures of 86.7°F (30.4°C) and lows of 76.3°F (24.6°C).

What is the month with the most sunshine?

July and August, with an average of 10.9h of sunshine, are months with the most sunshine.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 19.8 days and accumulates 4.53" (115mm) of precipitation.

What is the month with the warmest ocean?

The month with the warmest seawater is August, with an average ocean temperature of 82.9°F (28.3°C).

What is the month with the shortest days in Myrtle Beach?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Myrtle Beach.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.6h of sunshine.

Average temperature
Myrtle Beach, SC

Average temperature - Myrtle Beach, SC

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (54.3°F).

The month with the highest average low temperature is July (76.3°F).
The coldest month (with the lowest average low temperature) is January (42.1°F).

Average pressure
Myrtle Beach, SC

Average pressure - Myrtle Beach, SC

The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed
Myrtle Beach, SC

Average wind speed - Myrtle Beach, SC

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7.9mph).

Average humidity
Myrtle Beach, SC

Average humidity - Myrtle Beach, SC

The months with the highest relative humidity are May, June, August and December (78%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall
Myrtle Beach, SC

Average rainfall - Myrtle Beach, SC

The wettest month (with the highest rainfall) is August (4.53").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days
Myrtle Beach, SC

Average rainfall days - Myrtle Beach, SC

The months with the highest number of rainy days are July and August (19.8 days).
The month with the least rainy days is November (9.7 days).

Average snowfall
Myrtle Beach, SC

Average snowfall - Myrtle Beach, SC

The month with the highest snowfall is February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days
Myrtle Beach, SC

Average snowfall days - Myrtle Beach, SC

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature
Myrtle Beach, SC

Average sea temperature - Myrtle Beach, SC

The best month for swimming (with the highest average sea temperature) is August (82.9°F).
The coldest month (with the lowest average sea temperature) is March (57.7°F).

Average daylight / Average sunshine
Myrtle Beach, SC

Average daylight / Average sunshine - Myrtle Beach, SC

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days
Myrtle Beach, SC

Average sunshine days - Myrtle Beach, SC

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (8.2 days).

Average visibility
Myrtle Beach, SC

Average visibility - Myrtle Beach, SC

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Myrtle Beach, South Carolina, USA

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