Please click on any column to get detailed information about St. Simons Island weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
15
30
45
60
75
90
105
62.7
69.6
77.4
83.0
87.3
88.3
86.0
81.5
76.0
71.4
64.8
59.8
54.0
60.7
67.0
73.8
76.8
76.7
73.9
68.3
62.9
59.2
55.0
50.7
Day temperature | Night temperature |
The warmest month in St. Simons Island is july. The average daily temp is 88.3°F. The average nightly temp is 76.7°F.
Sea water temperature, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
59.5
67.8
74.4
82.2
85
84.6
80.8
75.6
69.1
62.8
56.8
56
The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 85.0°F.
Precipitation total, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.4
3.9
0.7
0.8
0.4
1.9
2.9
2.5
1.6
1
1.1
1.3
1
0.5
Number of rainy days
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
1
1
1
5
6
6
3
2
3
3
2
1
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
6.7
6.5
6.1
6
5.6
5.2
6.1
6.2
6.6
6.4
6.6
6.7
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
9
9
8
13
11
7
8
6
6
9
9
9
10
9
8
10
15
18
16
14
8
9
9
8
13
11
14
8
5
6
6
12
16
14
10
14
Cloudy days | Partly cloudy days | Sunny days |
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
5.8
6
7.3
6.4
6.6
7.3
7.6
8.7
8.8
7.4
6.3
6.4
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.
* Charts above show average data for the last 3 years.
sea water
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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: 02:08
April 12, saturday
0300

59°F
SE
4 mph
4 mph
0600

55°F
SE
6 mph
6 mph
0900

57°F
S
6 mph
6 mph
1200

66°F
SE
6 mph
6 mph
1500

72°F
SE
7 mph
7 mph
1800

70°F
SE
7 mph
7 mph
2100

64°F
SE
4 mph
4 mph
April 13, sunday
0000

59°F
SE
2 mph
2 mph