Climate averages 1991–2020
Macon weather
in September.
A hot, wet month: the 4th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Macon: daytime highs average 29.3°C and nights cool to about 19.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 91 mm of rain on roughly 9 days, which makes September a wet month (the 5th 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 Warner Robins (25 km away). In September its highs average 29.2°C, about as warm as Macon, with 99 mm of rain.
Among the 498 cities listed in the United States, Macon ranks joint 162nd of 498 for the warmest September highs and joint 343rd of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Macon is 2.4°C warmer than that mean.
From September to October, average highs fall by 4.9°C to 24.4°C, and monthly rainfall falls from 91 mm to 72 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
Macon climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.3°C3.7°C | 3.7°C | 102 | 9.8 | 10.210 h |
| February | 15.5°C5.2°C | 5.2°C | 105 | 8.6 | 11.011 h |
| March | 19.5°C8.3°C | 8.3°C | 100 | 8.9 | 12.012 h |
| April | 24.0°C12.3°C | 12.3°C | 79 | 8.0 | 13.013 h |
| May | 28.5°C17.0°C | 17.0°C | 64 | 8.3 | 13.814 h |
| June | 31.1°C20.9°C | 20.9°C | 97 | 14.0 | 14.314 h |
| July | 32.6°C22.8°C | 22.8°C | 101 | 14.8 | 14.114 h |
| August | 32.0°C22.4°C | 22.4°C | 95 | 14.2 | 13.413 h |
| September, selected | 29.3°C19.7°C | 19.7°C | 91 | 8.7 | 12.412 h |
| October | 24.4°C14.0°C | 14.0°C | 72 | 6.2 | 11.411 h |
| November | 18.7°C8.4°C | 8.4°C | 77 | 7.1 | 10.511 h |
| December | 14.5°C5.1°C | 5.1°C | 98 | 9.1 | 10.010 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
- Warner Robins in SeptemberUnited States · 25 kmHigh 29.2°C · Low 19.8°C · 99 mm rain
- Atlanta in SeptemberUnited States · 123 kmHigh 27.3°C · Low 18.1°C · 89 mm rain
- Athens, United States in SeptemberUnited States · 127 kmHigh 27.9°C · Low 18.6°C · 92 mm rain
- South Fulton in SeptemberUnited States · 128 kmHigh 27.6°C · Low 18.7°C · 88 mm rain
- Columbus, United States in SeptemberUnited States · 134 kmHigh 29.8°C · Low 20.1°C · 86 mm rain
- Sandy Springs in SeptemberUnited States · 139 kmHigh 27.2°C · Low 18.2°C · 92 mm rain
- Johns Creek in SeptemberUnited States · 142 kmHigh 27.4°C · Low 18.5°C · 91 mm rain
- Roswell in SeptemberUnited States · 148 kmHigh 27.1°C · Low 18.2°C · 91 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 Macon) is explained once on the Macon year overview and on the Sources, method and limits page.