Climate and monthly weather forecastMyrtle Beach, SC
Climate and monthly weather forecast
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
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
January and November, with an average relative humidity of 74%, are the least humid months in Myrtle Beach.
The month with the least rainfall is January, when the rain falls for 10.3 days and typically collects 1.02" (26mm) of precipitation.
In Myrtle Beach, during the entire year, the rain falls for 166.5 days and collects up to 28.78" (731mm) of precipitation.
January, February and December are months with snowfall.
In Myrtle Beach, during the entire year, snow falls for 1 days and aggregates up to 0.16" (4mm) of snow.
January is the month with the lowest UV index, with an average maximum UV index of 3.
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.
March through November are months without snowfall.
March is the month with the coldest seawater, with an average ocean temperature of 57.7°F (14.3°C).
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.
May, June, August and December, with an average relative humidity of 78%, are most humid months in Myrtle Beach.
With an average of 14h and 24min of daylight, June has the longest days of the year.
June through August, with an average maximum UV index of 7, are months with the highest UV index in Myrtle Beach.
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).
July and August, with an average of 10.9h of sunshine, are months with the most sunshine.
August is the month with the most rainfall. Rain falls for 19.8 days and accumulates 4.53" (115mm) of precipitation.
The month with the warmest seawater is August, with an average ocean temperature of 82.9°F (28.3°C).
With an average of 10h and 0min of daylight, December has the shortest days of the year in Myrtle Beach.
December has the least sunshine of the year, with an average of 5.6h of sunshine.
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 in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
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 in January:
9.6mph - Average wind speed in February:
10mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.1mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
8.8mph - Average wind speed in August:
7.9mph - Average wind speed in September:
8.9mph - Average wind speed in October:
9.4mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.3mph
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
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 in January:
1.02" - Average rainfall in February:
1.54" - Average rainfall in March:
1.54" - Average rainfall in April:
2.17" - Average rainfall in May:
2.64" - Average rainfall in June:
2.72"
- Average rainfall in July:
2.99" - Average rainfall in August:
4.53" - Average rainfall in September:
3.35" - Average rainfall in October:
1.97" - Average rainfall in November:
1.69" - Average rainfall in December:
2.64"
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 in January:
10.3 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
12.4 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
18.7 days
- Average rainfall days in July:
19.8 days - Average rainfall days in August:
19.8 days - Average rainfall days in September:
15.6 days - Average rainfall days in October:
10 days - Average rainfall days in November:
9.7 days - Average rainfall days in December:
11.6 days
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
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 in January:
0.4 days - Average snowfall days in February:
0.3 days - Average snowfall days in March:
0.1 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.2 days
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
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 in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
10h and 0min
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).
- Average sunshine in January:
5h and 42min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 36min - Average sunshine in April:
9h and 54min - Average sunshine in May:
10h and 12min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 54min - Average sunshine in September:
9h and 30min - Average sunshine in October:
6h and 24min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 36min
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 in January:
18.4 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
15 days - Average sunshine days in April:
14.6 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
8.2 days
- Average sunshine days in July:
8.5 days - Average sunshine days in August:
8.8 days - Average sunshine days in September:
12.1 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
17.7 days - Average sunshine days in December:
17.7 days
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 UV index
Myrtle Beach, SC
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover
Myrtle Beach, SC
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 25).
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).
