Annual mean 18°C · wettest around September · prevailing wind S
Warmest
30.0 °C
Coldest
10.8 °C
Wettest
55%
Windiest
3.9 m/s
Prevailing
S
3.4 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Myrtle Beach over the whole year is 18°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 6°C. Myrtle Beach has no sharply defined rainy season: the chance of rain on a given day runs from 48% in February, the driest month, to 54% in September, the wettest. Winds in Myrtle Beach are highest in April, averaging 2.9 m/s (10 km/h), and lightest in October, at 2.2 m/s (8 km/h). The prevailing wind is from the S. The clearest skies in Myrtle Beach come in April, when the sky is typically 26% covered; February is the cloudiest month, at 40%.
Month by month Myrtle Beach climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
11°C
6°C
8°C
50%
34%
2.4 m/s
18
1
48
February
14°C
9°C
12°C
48%
40%
2.5 m/s
35
3
62
March
17°C
11°C
14°C
49%
35%
2.8 m/s
47
4
67
April
21°C
14°C
19°C
49%
26%
2.9 m/s
70
18
63
May
25°C
19°C
25°C
50%
34%
2.7 m/s
59
49
31
June
28°C
22°C
30°C
52%
31%
2.6 m/s
24
65
6
July
30°C
24°C
33°C
52%
29%
2.5 m/s
5
48
1
August
29°C
24°C
32°C
52%
34%
2.3 m/s
10
55
1
September
27°C
21°C
29°C
54%
34%
2.4 m/s
33
61
12
October
23°C
16°C
23°C
51%
31%
2.2 m/s
67
36
46
November
17°C
10°C
15°C
49%
33%
2.3 m/s
46
8
67
December
13°C
7°C
11°C
52%
37%
2.3 m/s
29
1
59
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Myrtle Beach weather by season
Year round, Myrtle Beach has days of about 11°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from 6°C to 24°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around September and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Myrtle Beach weather in winterDecember to February
High 13°CLow 7°CRain 50%
Winter in Myrtle Beach has typical daily highs of about 13°C and lows of about 7°C, with a 50% chance of rain on a given day.
Myrtle Beach weather in springMarch to May
High 21°CLow 14°CRain 49%
Spring in Myrtle Beach has typical daily highs of about 21°C and lows of about 14°C, with a 49% chance of rain on a given day.
Myrtle Beach weather in summerJune to August
High 29°CLow 23°CRain 52%
Summer in Myrtle Beach has typical daily highs of about 29°C and lows of about 23°C, with a 52% chance of rain on a given day.
Myrtle Beach weather in autumnSeptember to November
High 22°CLow 16°CRain 51%
Autumn in Myrtle Beach has typical daily highs of about 22°C and lows of about 16°C, with a 51% chance of rain on a given day.
When is the rainy season in Myrtle Beach?
Myrtle Beach has no sharply defined rainy season: the chance of rain on a given day runs from 48% in February, the driest month, to 54% in September, the wettest.
What time of year is Myrtle Beach windiest?
Winds in Myrtle Beach are highest in April, averaging 2.9 m/s (10 km/h), and lightest in October, at 2.2 m/s (8 km/h). The prevailing wind is from the S.
What is the average temperature in Myrtle Beach year round?
The average temperature in Myrtle Beach over the whole year is 18°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 6°C.