Climate averages 1991–2020
Savannah weather
in September.
A hot, wet month: the 4th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Savannah: daytime highs average 28.4°C and nights cool to about 21.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 122 mm of rain on roughly 14 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 24 min on an average September day.
The nearest other city in this atlas is Charleston (134 km away). In September its highs average 27.6°C, 0.8°C cooler than Savannah, with 128 mm of rain.
Among the 498 cities listed in the United States, Savannah ranks joint 191st of 498 for the warmest September highs and 453rd of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Savannah is 1.5°C warmer than that mean.
From September to October, average highs fall by 3.8°C to 24.5°C, and monthly rainfall falls from 122 mm to 97 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Savannah climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.1°C6.5°C | 6.5°C | 88 | 8.8 | 10.310 h |
| February | 16.9°C7.9°C | 7.9°C | 84 | 8.7 | 11.011 h |
| March | 20.0°C10.7°C | 10.7°C | 80 | 8.2 | 12.012 h |
| April | 23.8°C14.5°C | 14.5°C | 70 | 6.8 | 12.913 h |
| May | 27.7°C18.8°C | 18.8°C | 59 | 8.4 | 13.814 h |
| June | 30.1°C22.5°C | 22.5°C | 117 | 15.4 | 14.214 h |
| July | 31.5°C24.2°C | 24.2°C | 115 | 16.2 | 14.014 h |
| August | 30.4°C23.9°C | 23.9°C | 150 | 18.8 | 13.313 h |
| September, selected | 28.4°C21.8°C | 21.8°C | 122 | 13.6 | 12.412 h |
| October | 24.5°C16.7°C | 16.7°C | 97 | 7.8 | 11.411 h |
| November | 19.9°C11.4°C | 11.4°C | 59 | 6.3 | 10.511 h |
| December | 16.4°C8.1°C | 8.1°C | 86 | 8.8 | 10.110 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Charleston in SeptemberUnited States · 134 kmHigh 27.6°C · Low 22.2°C · 128 mm rain
- North Charleston in SeptemberUnited States · 136 kmHigh 27.9°C · Low 21.3°C · 128 mm rain
- Jacksonville in SeptemberUnited States · 202 kmHigh 29.0°C · Low 22.8°C · 121 mm rain
- Columbia (South Carolina), United States in SeptemberUnited States · 213 kmHigh 28.3°C · Low 19.0°C · 94 mm rain
- Warner Robins in SeptemberUnited States · 245 kmHigh 29.2°C · Low 19.8°C · 99 mm rain
- Macon in SeptemberUnited States · 252 kmHigh 29.3°C · Low 19.7°C · 91 mm rain
- Palm Coast in SeptemberUnited States · 278 kmHigh 28.7°C · Low 24.0°C · 137 mm rain
- Albany (Georgia), United States in SeptemberUnited States · 294 kmHigh 30.4°C · Low 20.8°C · 92 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Savannah) is explained once on the Savannah year overview and on the Sources, method and limits page.