Baton Rouge, LA Climate & Monthly Averages
Baton Rouge has a humid subtropical climate. July is the hottest month, averaging 90° by day; January is the coldest at 61°.
Sunshine is a defining feature of Baton Rouge's climate
Set in Louisiana, United States, Baton Rouge works through a humid subtropical year: July afternoons near 90°F (32°C), January afternoons near 61°F (16°C), and about 61.9 inches (1572 mm) of precipitation between them.
How sun, temperature and rain fit together
Six of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is February through April. January sits at the other end of the year: 61°F (16°C) by day, 44°F (7°C) at night. At its warmest, in July, Baton Rouge runs to 90°F (32°C) in the afternoon and back to 76°F (25°C) by dawn.
The gridded 2015-2024 daily record for this location tops out at 104°F (40°C) and bottoms at 16°F (-9°C) - decade extremes, not all-time station records. June is the brightest month at 11.5 hours of sun a day, against an annual average of 9.2.
Average highs hold at or above 30°C for 4 months of the year, June through September being the unbroken run. Precipitation concentrates in August - 7.7 inches (196 mm) on 18 days - and thins out by October.
More climate facts for Baton Rouge
- Hottest month: July - highs near 90°F (32°C)
- Coldest month: January - highs near 61°F (16°C)
- Decade extremes (2015-2024): 104°F (40°C) high · 16°F (-9°C) low
- Wettest month: August (18 rainy days) · Sunniest: June (11.5 h sun/day)
- Climate type: humid subtropical
- Annual swing: 17°C between the average warmest and coolest month · day to night: 9°C
- Months averaging 30°C or hotter: 4
- Average humidity: 77%
The most comfortable sunny-weather window
Best time to visit Baton Rouge
Aim for January to May and October if you get the choice: warm days, manageable rainfall and plenty of daylight line up, and highs average 74°F (23°C) against roughly 10 wet days a month. For the same question asked the other way round, see where else is warm in January.
What to pack
Pack for Baton Rouge with lightweight, breathable clothing and serious sun protection, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. July nights average 76°F (25°C), so evenings rarely match the afternoons.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 61° | 44° | 10 | 5.1 in | 7.3 h/day | 10.4 h | 33% | 75% |
| February | 66° | 49° | 10 | 4.3 in | 7.4 h/day | 11.1 h | 37% | 77% |
| March | 72° | 55° | 11 | 5.2 in | 8.6 h/day | 11.9 h | 36% | 77% |
| April | 77° | 60° | 12 | 6.0 in | 9.5 h/day | 12.9 h | 39% | 76% |
| May | 84° | 68° | 12 | 5.2 in | 10.8 h/day | 13.7 h | 39% | 77% |
| June | 88° | 74° | 15 | 5.3 in | 11.5 h/day | 14.1 h | 50% | 79% |
| July | 90° | 76° | 18 | 5.7 in | 10.7 h/day | 13.9 h | 58% | 80% |
| August | 90° | 76° | 18 | 7.7 in | 10.2 h/day | 13.2 h | 58% | 79% |
| September | 87° | 72° | 12 | 4.6 in | 10.3 h/day | 12.3 h | 41% | 77% |
| October | 81° | 63° | 7 | 3.3 in | 9.4 h/day | 11.4 h | 22% | 72% |
| November | 71° | 53° | 9 | 3.9 in | 8.0 h/day | 10.6 h | 29% | 75% |
| December | 65° | 49° | 11 | 5.6 in | 6.8 h/day | 10.2 h | 35% | 79% |
Baton Rouge month by month
Each card shows the average high and low. The bar places that month between Baton Rouge's coldest night and warmest afternoon.
January
- Rain
- 10 days
- Sunshine
- 7.3 h
- Daylight
- 10.4 h
February
- Rain
- 10 days
- Sunshine
- 7.4 h
- Daylight
- 11.1 h
March
- Rain
- 11 days
- Sunshine
- 8.6 h
- Daylight
- 11.9 h
April
- Rain
- 12 days
- Sunshine
- 9.5 h
- Daylight
- 12.9 h
May
- Rain
- 12 days
- Sunshine
- 10.8 h
- Daylight
- 13.7 h
June
- Rain
- 15 days
- Sunshine
- 11.5 h
- Daylight
- 14.1 h
July
- Rain
- 18 days
- Sunshine
- 10.7 h
- Daylight
- 13.9 h
August
- Rain
- 18 days
- Sunshine
- 10.2 h
- Daylight
- 13.2 h
September
- Rain
- 12 days
- Sunshine
- 10.3 h
- Daylight
- 12.3 h
October
- Rain
- 7 days
- Sunshine
- 9.4 h
- Daylight
- 11.4 h
November
- Rain
- 9 days
- Sunshine
- 8.0 h
- Daylight
- 10.6 h
December
- Rain
- 11 days
- Sunshine
- 6.8 h
- Daylight
- 10.2 h
Looking for warmer alternatives? Browse warm places by month, or compare Baton Rouge's coolest part of the year: January, December, February.
Seasonal weather under Baton Rouge's sunnier skies
Spring (March through May)
Spring in Baton Rouge settles into easy warmth, with daytime highs averaging 78°F (25°C) and nights around 61°F (16°C); rain falls on around 35 of the 90 days.
Summer (June through August)
Through summer, Baton Rouge brings hot afternoons: 89°F (32°C) by day, 75°F (24°C) after dark, and rain falls on around 51 of the 90 days. Daylight is generous - around 10.8 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Through fall, Baton Rouge settles into easy warmth: 79°F (26°C) by day, 63°F (17°C) after dark, and expect showers on roughly 28 days across the season.
Winter (December through February)
Winter runs cool rather than cold here - highs near 64°F (18°C), nights near 47°F (9°C), and rain falls on around 32 of the 90 days.
How unusual is Baton Rouge?
- Baton Rouge sits close to the middle of our dataset on most measures: 69°F (20°C) as an annual average, 61.9 inches (1572 mm) of precipitation and 9.2 hours of sun a day.
These comparisons use the same ten-year window for every city in the dataset.
Baton Rouge temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.