Weather in St. Simons Island in Summer
| June | July | August | ||||
| Average day temperature: | 86.0°F | 88.3°F | 87.3°F | |||
| Average night temperature: | 73.9°F | 76.7°F | 76.8°F | |||
| Sea water temperature: | 80.8°F | 84.6°F | 85.0°F | |||
| Number of sunny days: | 6 days | 6 days | 5 days | |||
| Day length: | 14.1 - 14.2 h. | 13.7 - 14.1 h. | 12.8 - 13.6 h. | |||
| Number of rainy days: | 3 days | 6 days | 6 days | |||
| Precipitation totals: | 1.6 in. | 2.5 in. | 2.9 in. | |||
current
weather
weather
| St. Simons Island |
monthly
weather
weather
| St. Simons Island |
sea water
temperature
temperature
| St. Simons Island |
14 days
forecast
forecast
| St. Simons Island |
Day & Night air temperature, °F
June
July
August
0
15
30
45
60
75
90
105
87.3
88.3
86.0
76.8
76.7
73.9
| Day temperature | Night temperature |
Sea water temperature, °F
June
July
August
0
14
28
42
56
70
84
98
112
85
84.6
80.8
Precipitation total, in.
June
July
August
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.4
3.9
2.9
2.5
1.6
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
11
7
8
15
18
16
5
6
6
| Cloudy days | Partly cloudy days | Sunny days |
weather in
winter
winter
| St. Simons Island |
weather in
spring
spring
| St. Simons Island |
weather in
summer
summer
| St. Simons Island |
weather in
autumn
autumn
| St. Simons Island |
Wind speed, mph
June
July
August
0.0
1.0
2.1
3.1
4.2
5.2
6.3
7.3
5.6
5.2
6.1
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
9
6.6
7.3
7.6
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in St. Simons Island
St. Simons Island on a weather map
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Places in USA:
Name
°F
24 Hours Forecast
St. Simons Island
Local time: 11:12
April 17, thursday
1200
75°F
W
2 mph
2 mph
1500
79°F
NW
1 mph
1 mph
1800
79°F
NW
6 mph
6 mph
2100
70°F
W
4 mph
4 mph
April 18, friday
0000
64°F
NW
3 mph
3 mph
0300
61°F
NW
3 mph
3 mph
0600
59°F
NW
3 mph
3 mph
0900
66°F
NW
4 mph
4 mph
