Climate and monthly weather forecastSeaside, SC
Climate and monthly weather forecast
Weather in January
January, like December, is another mild winter month in Seaside, South Carolina, with an average temperature ranging between max 57°F (13.9°C) and min 46.4°F (8°C). Seaside reaches its lowest average temperatures in January, measuring 57°F (13.9°C) at the peak and 46.4°F (8°C) at the lowest. Weather in January »Weather in February
The last month of the winter, February, is another refreshing month in Seaside, South Carolina, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 59.5°F (15.3°C). Seaside measures an average high-temperature of a still moderate 59.5°F (15.3°C) in February, nearly consistent with the preceding month. Weather in February »Weather in March
March, the first month of the spring in Seaside, is an enjoyable month, with an average temperature varying between 64.4°F (18°C) and 54.1°F (12.3°C). The commencement of March introduces an average high-temperature of a comfortable 64.4°F (18°C), closely mirroring the preceding month. Weather in March »Weather in April
April in Seaside, South Carolina, is a pleasant spring month, with an average temperature varying between 61.9°F (16.6°C) and 71.4°F (21.9°C). April's onset is marked by a subtle temperature increase, moving from a refreshing 64.4°F (18°C) in March to an agreeable 71.4°F (21.9°C). Weather in April »Weather in May
May, the last month of the spring in Seaside, is a warm month, with an average temperature ranging between max 78.1°F (25.6°C) and min 69.3°F (20.7°C). The arrival of May brings a soft temperature shift, with the average high-temperature nudging from an agreeable 71.4°F (21.9°C) in April to a moderately hot 78.1°F (25.6°C). Weather in May »Weather in June
June, the first month of the summer in Seaside, is still a warm month, with an average temperature ranging between max 84.2°F (29°C) and min 75.9°F (24.4°C). In June, the meteorological conditions subtly change with the average high-temperature edging from a moderately hot 78.1°F (25.6°C) in May to a still warm 84.2°F (29°C). Weather in June »Weather in July
July is a tropical summer month in Seaside, South Carolina, with an average temperature ranging between max 86.2°F (30.1°C) and min 78.4°F (25.8°C). July is Seaside's warmest month, registering average high temperatures of 86.2°F (30.1°C) and lows of 78.4°F (25.8°C). The average heat index in July is appraised at a sweltering 98.6°F (37°C). Weather in July »Weather in August
August, the last month of the summer in Seaside, is another tropical month, with an average temperature fluctuating between 86°F (30°C) and 78.4°F (25.8°C). Seaside records a slight change with August's average high-temperatures adjusting to a still hot 86°F (30°C) from July's 86.2°F (30.1°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Seaside, South Carolina, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 74.3°F (23.5°C). The transition into September is marked with an average high-temperature of a moderately hot 82.6°F (28.1°C), showing an insignificant shift from August's 86°F (30°C). Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Seaside, South Carolina, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 65.7°F (18.7°C). The commencement of October includes a gentle temperature shift, with the average high-temperature dropping a bit from 82.6°F (28.1°C) in September to a still moderately hot 75.2°F (24°C). Weather in October »Weather in November
The last month of the autumn, November, is also an enjoyable month in Seaside, South Carolina, with an average temperature ranging between max 65.8°F (18.8°C) and min 55.6°F (13.1°C). November is characterized by a reduction in the average high-temperature, from a warm 75.2°F (24°C) in October to an enjoyable 65.8°F (18.8°C). Weather in November »Weather in December
December, the first month of the winter in Seaside, is also a moderate month, with an average temperature fluctuating between 60.6°F (15.9°C) and 51.1°F (10.6°C). The transition from November to December brings an average high-temperature of a still refreshing 60.6°F (15.9°C), barely different from November's 65.8°F (18.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Seaside, SC
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (57°F).
The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).
Average pressure
Seaside, SC
- Average pressure in January:
30.14"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:
29.98"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed
Seaside, SC
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.8mph - Average wind speed in June:
9.3mph
- Average wind speed in July:
9.4mph - Average wind speed in August:
8.8mph - Average wind speed in September:
9.6mph - Average wind speed in October:
10mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10.2mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).
Average humidity
Seaside, SC
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January, March and October (73%).
Average rainfall
Seaside, SC
- Average rainfall in January:
0.24" - Average rainfall in February:
0.35" - Average rainfall in March:
0.39" - Average rainfall in April:
0.71" - Average rainfall in May:
0.47" - Average rainfall in June:
1.14"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days
Seaside, SC
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
6 days - Average rainfall days in March:
6.9 days - Average rainfall days in April:
8.8 days - Average rainfall days in May:
9.9 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
6.8 days - Average rainfall days in November:
5.2 days - Average rainfall days in December:
6.2 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (5.2 days).
Average snowfall days
Seaside, SC
- Average snowfall days in January:
0.2 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 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:
0.1 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Seaside, SC
- Average daylight in January:
10h and 18min - 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 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 48min - Average sunshine in February:
6h and 48min - Average sunshine in March:
7h and 48min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 30min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
10h and 54min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 6min - Average sunshine in December:
5h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Seaside, SC
- Average sunshine days in January:
23.9 days - Average sunshine days in February:
20.9 days - Average sunshine days in March:
23.3 days - Average sunshine days in April:
20 days - Average sunshine days in May:
18.4 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
8.5 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
22.3 days - Average sunshine days in November:
23.6 days - Average sunshine days in December:
23.5 days
The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is August (8.5 days).
Average UV index
Seaside, SC
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover
Seaside, SC
The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 25).
Average visibility
Seaside, 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).





