St. Simons Island, GA weather in January
St. Simons Island is cool in January, with some rain: highs average 62°F and nights drop to about 44°F. There are about 8 days with rain. It is one of the coolest months in St. Simons Island.
- Normal high
- 62°F
- Normal low
- 44°F
- Wet days
- 8
- 3.1 in total
- Muggy days
- 0
- dew point 65°F+
How January changes from start to finish
| January 1 | January 31 | |
|---|---|---|
| Normal high | 62°F | 62°F |
| Normal low | 45°F | 45°F |
| Chance of a wet day | 26% | 28% |
| Sunrise / sunset | 7:24 am / 5:34 pm | 7:18 am / 5:59 pm |
| Daylight | 10.2 h | 10.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical January day
- 6 am47°Fdew point 43°F
- 9 am50°Fdew point 44°F
- Noon57°Fdew point 44°F
- 3 pm59°Fdew point 44°F
- 6 pm55°Fdew point 44°F
- 9 pm52°Fdew point 45°F
NOAA hourly normals (local standard time) from Brunswick Malcolm Mckinnon Airport (1 mi away); average wind 8 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F9 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow8 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below4 of 31
Average days per January, counted from daily records for each year 1991-2020.
Rain in January
Normal precipitation is 3.1 in; a dry January brings about 1.9 in and a wet one about 4.2 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more. Snow is very rare.
How January varies from year to year
- Warmest January, 1991-20202017: average high 68°F
- Coolest January2010: average high 56°F
- Wettest January1991: 9.3 in
- Driest January2013: 0.3 in
- Highest reading82°F (January 16, 2020)
- Lowest reading19°F (January 24, 2003)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
January compared with December and February
| December | January | February | |
|---|---|---|---|
| Normal high | 64°F | 62°F | 65°F |
| Normal low | 47°F | 44°F | 47°F |
| Wet days | 8 | 8 | 8 |
| Comfortable days | 10 | 9 | 10 |
| Daylight | 10.2 h | 10.4 h | 11.1 h |
Highs change by -2°F from December and +3°F into February.
Nearby alternatives in January
- Warmer: St. Augustine, FL86 mi · high 68°F · 9 wet days
- Cooler: Athens, GA226 mi · high 55°F · 11 wet days
How St. Simons Island ranks in January
- Normal high92nd warmest of 378 cities; 1st of 8 in Georgia
- Wet days141st driest of 378
- Comfortable days89th most of 339
What to pack for St. Simons Island in January
- A rain jacket or umbrella – rain on about 8 days
Heating and cooling
January has 380 heating degree days and 6 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.
Questions
How cold is St. Simons Island in January?
The normal high is 62°F and the normal low is 44°F. From 1991 to 2020 the coldest January reading was 19°F (January 24, 2003).
Does it rain a lot in St. Simons Island in January?
About 8 days in January have at least 0.01 in of precipitation, and the normal total is 3.2 in. The wettest January in 1991-2020 was in 1991 (9.4 in); the driest was in 2013 (0.3 in).
Is January a good time to visit St. Simons Island?
January ranks 6th of 12 months on our comfort score for St. Simons Island (56 out of 100). It has about 9 comfortable days. The best months are March, April and November.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: Brunswick Malcolm Mckinnon Airport (USW00013878), 1.2 mi N of the city center, 16 ft . NOAA normals and daily records, 1991-2020.
- Snowfall: Brunswick (USC00091340), 7.0 mi WNW of the city center, 13 ft . NOAA normals and daily records, 1991-2020.
- Snow depth: Sapelo Is (USC00097808), 19 mi NNE of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Malcolm Mc Kinnon Airport (722137-13878), 1.2 mi N of the city center, 14 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).