Brownsville Weather in August
Average highs run from 96°F on August 1 to 95°F on August 31, and lows from 78°F to 77°F. Normal precipitation for the month is 2.16 in over about 6 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 96°F
- Average low
- 78°F
- Precipitation
- 2.16 in
- Record high
- 106°FAug 28, 2023
- Record low
- 62°FAug 16, 1931
- Chance of a freeze
- 0%
- Days of 90°F or more
- 29.5
- Daylight
- 13 h 20 min to 12 h 40 min
- Cloud cover
- 38%
- Humidity
- 70%
- Dew point
- 74°F
- Wind
- 9.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 96°F | 78°F | 100°F 2023 | 68°F 1918 | 15% |
| Aug 2 | 97°F | 78°F | 102°F 2026 | 68°F 1901 | 15% |
| Aug 3 | 97°F | 78°F | 102°F 1915 | 70°F 1901 | 15% |
| Aug 4 | 97°F | 78°F | 101°F 2023 | 71°F 2000 | 16% |
| Aug 5 | 97°F | 78°F | 100°F 2023 | 69°F 1975 | 16% |
| Aug 6 | 97°F | 78°F | 100°F 1998 | 69°F 1972 | 16% |
| Aug 7 | 97°F | 78°F | 100°F 1900 | 72°F 1913 | 17% |
| Aug 8 | 97°F | 78°F | 100°F 1905 | 71°F 1971 | 17% |
| Aug 9 | 97°F | 78°F | 100°F 1905 | 71°F 1976 | 17% |
| Aug 10 | 97°F | 78°F | 101°F 1962 | 67°F 1904 | 18% |
| Aug 11 | 97°F | 78°F | 100°F 2026 | 70°F 1901 | 18% |
| Aug 12 | 97°F | 78°F | 100°F 2023 | 69°F 1967 | 19% |
| Aug 13 | 97°F | 78°F | 104°F 1932 | 64°F 1967 | 19% |
| Aug 14 | 97°F | 78°F | 102°F 1962 | 63°F 1967 | 20% |
| Aug 15 | 97°F | 78°F | 103°F 2023 | 69°F 2004 | 20% |
| Aug 16 | 97°F | 78°F | 102°F 2023 | 62°F 1931 | 21% |
| Aug 17 | 97°F | 78°F | 104°F 1915 | 63°F 1931 | 22% |
| Aug 18 | 97°F | 78°F | 104°F 1915 | 70°F 1992 | 22% |
| Aug 19 | 97°F | 78°F | 100°F 1915 | 70°F 1910 | 23% |
| Aug 20 | 96°F | 78°F | 101°F 1986 | 70°F 1910 | 24% |
| Aug 21 | 96°F | 78°F | 102°F 2024 | 70°F 1901 | 24% |
| Aug 22 | 96°F | 78°F | 102°F 2026 | 68°F 1956 | 25% |
| Aug 23 | 96°F | 78°F | 102°F 1917 | 70°F 1948 | 26% |
| Aug 24 | 96°F | 78°F | 100°F 1970 | 69°F 1956 | 27% |
| Aug 25 | 96°F | 77°F | 100°F 2019 | 68°F 1901 | 27% |
| Aug 26 | 96°F | 77°F | 101°F 2019 | 69°F 1961 | 28% |
| Aug 27 | 96°F | 77°F | 102°F 2023 | 69°F 1908 | 29% |
| Aug 28 | 95°F | 77°F | 106°F 2023 | 67°F 1958 | 29% |
| Aug 29 | 95°F | 77°F | 104°F 2012 | 66°F 1958 | 30% |
| Aug 30 | 95°F | 77°F | 105°F 2012 | 67°F 1921 | 31% |
| Aug 31 | 95°F | 77°F | 103°F 2023 | 67°F 1915 | 31% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 6:56 AM, sunset 8:16 PM
- August 31
- sunrise 7:10 AM, sunset 7:50 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00012919 (Brownsville), public domain. Records: NOAA GHCN-Daily, station USW00012919, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.