Baton Rouge, LA weather in August
August in Baton Rouge: hot and oppressively humid, with frequent rain. Highs 92°F, lows 73°F, about 12 wet days. This is the peak of the warm season in Baton Rouge. Midday heat is the main thing to plan around.
- Normal high
- 92°F
- Normal low
- 73°F
- Wet days
- 12
- 6.4 in total
- Muggy days
- 30
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 93°F | 91°F |
| Normal low | 74°F | 72°F |
| Chance of a wet day | 40% | 36% |
| Sunrise / sunset | 6:22 am / 7:59 pm | 6:40 am / 7:29 pm |
| Daylight | 13.6 h | 12.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical August day
- 6 am76°Fdew point 73°F
- 9 am84°Fdew point 75°F
- Noon89°Fdew point 73°F
- 3 pm88°Fdew point 72°F
- 6 pm85°Fdew point 73°F
- 9 pm79°Fdew point 74°F
NOAA hourly normals (local standard time) from Lafayette Rgnl Airport (53 mi away); average wind 5 mph; clear or few clouds in 62% of daytime hours, mostly cloudy or overcast in 22%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more25 of 31
- Muggy daysdaily mean dew point 65°F or more30 of 31
- Wet daysat least 0.01 in of rain or melted snow12 of 31
- Notable rainat least 0.10 in8 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 6.4 in; a dry August brings about 3.3 in and a wet one about 7.5 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 2 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202011: average high 97°F
- Coolest August1996: average high 89°F
- Wettest August2016: 31.0 in
- Driest August1999: 0.4 in
- Highest reading105°F (August 30, 2000)
- Lowest reading58°F (August 15, 2004)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 92°F | 92°F | 89°F |
| Normal low | 74°F | 73°F | 69°F |
| Wet days | 13 | 12 | 9 |
| Comfortable days | 0 | 0 | 1 |
| Daylight | 13.9 h | 13.2 h | 12.3 h |
Highs change by 0°F from July and -3°F into September.
Nearby alternatives in August
- Drier: Shreveport, LA210 mi · high 95°F · 7 wet days
How Baton Rouge ranks in August
- Normal high87th warmest of 378 cities; 4th of 5 in Louisiana
- Wet days320th driest of 378
- Comfortable days304th most of 341
What to pack for Baton Rouge in August
- Light, breathable clothing – highs near 92°F and about 30 muggy days
- A rain jacket or umbrella – rain on about 12 days
Heating and cooling
August has 0 heating degree days and 550 cooling degree days (base 65°F), 13% of the year's total heating and cooling demand.
Questions
How hot is Baton Rouge in August?
The normal high is 92°F and the normal low is 73°F. From 1991 to 2020 the hottest August reading was 105°F (August 30, 2000).
Does it rain a lot in Baton Rouge in August?
About 12 days in August have at least 0.01 in of precipitation, and the normal total is 6.4 in. The wettest August in 1991-2020 was in 2016 (31.0 in); the driest was in 1999 (0.4 in).
Is August a good time to visit Baton Rouge?
August ranks 12th of 12 months on our comfort score for Baton Rouge (33 out of 100). It has almost no comfortable days and about 25 days at 90°F or hotter. The best months are March, April and November.
Where the numbers come from
- Temperature, rain and frost dates: Baton Rouge Ryan Airport (USW00013970), 6.0 mi N of the city center, 64 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Baton Rouge Sherwood (USC00160558), 6.4 mi E of the city center, 55 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Lafayette Rgnl Airport (USW00013976), 53 mi WSW of the city center, 38 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Lafayette Regional Airport (722405-13976), 53 mi WSW of the city center, 35 ft . Hourly observations, 1991-2020.