St Simons Island Airport Weather Forecast 15 Days, Weather in SSI Today
Current weather conditions and 15 day weather forecast for St Simons Island Airport, Georgia, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at St Simons Island Airport
| 15 December 2025 Monday 1.3 ° C / 34.3°F  Overcast |
Feels Like : -3.9 ° C / 25°F Humidity : % 59 Pressure : 1031 mb Wind Speed : 22.3 kmph / 13.9 miles from NE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for St Simons Island Airport, GA, USA
Weather Forecast for next 15 Days for St Simons Island Airport including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in St Simons Island Airport, Georgia state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 December 2025 Monday | Overcast |
2.7 ° C (36.9°F) |
8 ° C (46.4°F) |
5.1 ° C (41.1°F) |
% 66 | 0% | 0.6 | Sunrise:07:17 AM Sunset: 05:25 PM |
Moonrise:03:23 AM Moonset: 02:16 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Overcast |
4.8 ° C (40.6°F) |
10.7 ° C (51.3°F) |
7.4 ° C (45.2°F) |
% 63 | 0% | 0.7 | Sunrise:07:18 AM Sunset: 05:26 PM |
Moonrise:04:20 AM Moonset: 02:49 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Overcast |
10.1 ° C (50.2°F) |
13.8 ° C (56.8°F) |
12.2 ° C (54°F) |
% 87 | 0% | 0.4 | Sunrise:07:18 AM Sunset: 05:26 PM |
Moonrise:05:17 AM Moonset: 03:26 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Partly Cloudy |
14.1 ° C (57.4°F) |
20.1 ° C (68.1°F) |
16.7 ° C (62°F) |
% 84 | 0% | 0.7 | Sunrise:07:19 AM Sunset: 05:26 PM |
Moonrise:06:14 AM Moonset: 04:09 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Sunny |
11.2 ° C (52.2°F) |
19.6 ° C (67.2°F) |
16.2 ° C (61.2°F) |
% 74 | 0% | 0 | Sunrise:07:19 AM Sunset: 05:27 PM |
Moonrise:07:10 AM Moonset: 04:58 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Partly Cloudy |
10 ° C (49.9°F) |
18.1 ° C (64.5°F) |
14.1 ° C (57.3°F) |
% 65 | 0% | 4 | Sunrise:07:20 AM Sunset: 05:27 PM |
Moonrise:08:02 AM Moonset: 05:53 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Patchy rain nearby |
15.1 ° C (59.2°F) |
21.7 ° C (71.1°F) |
18.1 ° C (64.6°F) |
% 86 | 89% | 4 | Sunrise:07:20 AM Sunset: 05:28 PM |
Moonrise:08:49 AM Moonset: 06:52 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Patchy rain nearby |
11.3 ° C (52.3°F) |
13.7 ° C (56.6°F) |
13.7 ° C (56.7°F) |
% 88 | 88% | 3 | Sunrise:07:21 AM Sunset: 05:28 PM |
Moonrise:09:31 AM Moonset: 07:52 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Patchy rain nearby |
13 ° C (55.3°F) |
17.8 ° C (64°F) |
15.3 ° C (59.5°F) |
% 87 | 89% | 4 | Sunrise:07:21 AM Sunset: 05:29 PM |
Moonrise:10:07 AM Moonset: 08:53 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Patchy rain nearby |
17.2 ° C (62.9°F) |
18.6 ° C (65.5°F) |
17.8 ° C (64.1°F) |
% 91 | 77% | 4 | Sunrise:07:22 AM Sunset: 05:29 PM |
Moonrise:10:39 AM Moonset: 09:53 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Mist |
14.6 ° C (58.3°F) |
17.5 ° C (63.6°F) |
16.2 ° C (61.2°F) |
% 85 | 0% | 4 | Sunrise:07:22 AM Sunset: 05:30 PM |
Moonrise:11:09 AM Moonset: 10:53 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
15.1 ° C (59.2°F) |
18.7 ° C (65.6°F) |
16.4 ° C (61.4°F) |
% 89 | 82% | 4 | Sunrise:07:23 AM Sunset: 05:31 PM |
Moonrise:11:38 AM Moonset: 11:54 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Sunny |
8.7 ° C (47.7°F) |
11.7 ° C (53°F) |
11 ° C (51.7°F) |
% 69 | 0% | 4 | Sunrise:07:23 AM Sunset: 05:31 PM |
Moonrise:12:06 PM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
9 ° C (48.2°F) |
14.9 ° C (58.8°F) |
11.6 ° C (52.8°F) |
% 75 | 0% | 4 | Sunrise:07:23 AM Sunset: 05:32 PM |
Moonrise:12:37 PM Moonset: 12:56 AM Moon Phase ( Waxing Gibbous ) |
|
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