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Atlanta Weather by Month
Average temperatures, rainfall and humidity for Atlanta, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Atlanta month looks like before you travel — then check the live Atlanta forecast for the days ahead.
Warmest month
July
32°C average high
Coolest month
January
2°C average low
Wettest month
December
112 mm of rain
Driest month
October
58 mm of rain
Average temperature and rainfall in Atlanta by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 12°C | 2°C | -14°C / 24°C | 79 mm | 69% | 11 km/h |
| February | 15°C | 5°C | -10°C / 27°C | 91 mm | 69% | 12 km/h |
| March | 19°C | 8°C | -5°C / 30°C | 81 mm | 62% | 13 km/h |
| April | 23°C | 12°C | 0°C / 31°C | 85 mm | 63% | 12 km/h |
| May | 27°C | 16°C | 5°C / 34°C | 69 mm | 68% | 10 km/h |
| June | 30°C | 20°C | 12°C / 37°C | 78 mm | 72% | 9 km/h |
| July | 32°C | 22°C | 15°C / 38°C | 73 mm | 75% | 9 km/h |
| August | 31°C | 21°C | 15°C / 37°C | 94 mm | 75% | 9 km/h |
| September | 28°C | 19°C | 9°C / 36°C | 66 mm | 73% | 9 km/h |
| October | 23°C | 13°C | -1°C / 35°C | 58 mm | 71% | 10 km/h |
| November | 17°C | 7°C | -9°C / 28°C | 65 mm | 69% | 11 km/h |
| December | 14°C | 5°C | -14°C / 24°C | 112 mm | 73% | 11 km/h |
Best time to visit Atlanta
The most comfortable time to visit Atlanta is generally April to May and October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around December, totalling about 950 mm a year.
Travellers who prefer heat should aim for July, when highs average 32°C. December is the month to avoid if rain would spoil your plans — it averages 112 mm, roughly 2× the rainfall of the driest month (October).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Atlanta forecast for what is happening now.