Climate averages 1991–2020
Baton Rouge weather
in August.
A hot, wet month: the warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Baton Rouge: daytime highs average 32.0°C and nights cool to about 24.0°C. By daytime temperature it is the warmest month of the year.
Expect about 133 mm of rain on roughly 16 days, which makes August a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 15 min on an average August day.
The nearest other city in this atlas is Lafayette (Louisiana), United States (84 km away). In August its highs average 32.1°C, about as warm as Baton Rouge, with 121 mm of rain.
Among the 498 cities listed in the United States, Baton Rouge ranks joint 134th of 498 for the warmest August highs and joint 453rd of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Baton Rouge is 2.1°C warmer than that mean.
From August to September, average highs fall by 1.9°C to 30.1°C, and monthly rainfall falls from 133 mm to 100 mm.
The annual picture
August 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
Baton Rouge climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.9°C6.9°C | 6.9°C | 124 | 9.4 | 10.410 h |
| February | 18.1°C8.7°C | 8.7°C | 115 | 8.9 | 11.111 h |
| March | 21.4°C11.7°C | 11.7°C | 118 | 9.8 | 12.012 h |
| April | 25.0°C15.2°C | 15.2°C | 115 | 8.8 | 12.913 h |
| May | 28.9°C19.5°C | 19.5°C | 105 | 9.5 | 13.714 h |
| June | 31.3°C22.9°C | 22.9°C | 120 | 13.6 | 14.114 h |
| July | 31.9°C24.1°C | 24.1°C | 132 | 17.0 | 13.914 h |
| August, selected | 32.0°C24.0°C | 24.0°C | 133 | 15.7 | 13.213 h |
| September | 30.1°C21.8°C | 21.8°C | 100 | 10.7 | 12.412 h |
| October | 26.2°C16.7°C | 16.7°C | 86 | 7.6 | 11.511 h |
| November | 20.8°C11.3°C | 11.3°C | 89 | 7.7 | 10.611 h |
| December | 17.1°C8.1°C | 8.1°C | 112 | 9.3 | 10.210 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
August in nearby cities
- Lafayette (Louisiana), United States in AugustUnited States · 84 kmHigh 32.1°C · Low 24.2°C · 121 mm rain
- Metairie in AugustUnited States · 112 kmHigh 30.9°C · Low 25.3°C · 148 mm rain
- New Orleans in AugustUnited States · 120 kmHigh 30.7°C · Low 25.4°C · 159 mm rain
- Lake Charles in AugustUnited States · 195 kmHigh 32.3°C · Low 24.4°C · 117 mm rain
- Gulfport in AugustUnited States · 201 kmHigh 30.5°C · Low 24.9°C · 161 mm rain
- Jackson in AugustUnited States · 227 kmHigh 32.6°C · Low 22.7°C · 95 mm rain
- Beaumont in AugustUnited States · 283 kmHigh 32.4°C · Low 24.4°C · 123 mm rain
- Mobile in AugustUnited States · 302 kmHigh 31.0°C · Low 24.4°C · 140 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 Baton Rouge) is explained once on the Baton Rouge year overview and on the Sources, method and limits page.