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Brownsville Weather by Month
Average temperatures, rainfall and humidity for Brownsville, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Brownsville month looks like before you travel — then check the live Brownsville forecast for the days ahead.
Warmest month
August
35°C average high
Coolest month
January
12°C average low
Wettest month
September
84 mm of rain
Driest month
August
14 mm of rain
Average temperature and rainfall in Brownsville by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 22°C | 12°C | -3°C / 34°C | 35 mm | 76% | 16 km/h |
| February | 24°C | 14°C | -5°C / 34°C | 17 mm | 77% | 18 km/h |
| March | 27°C | 18°C | 3°C / 37°C | 36 mm | 76% | 19 km/h |
| April | 29°C | 21°C | 9°C / 39°C | 32 mm | 76% | 20 km/h |
| May | 31°C | 24°C | 12°C / 39°C | 39 mm | 76% | 20 km/h |
| June | 33°C | 25°C | 19°C / 40°C | 29 mm | 76% | 18 km/h |
| July | 34°C | 26°C | 21°C / 38°C | 24 mm | 74% | 17 km/h |
| August | 35°C | 26°C | 19°C / 39°C | 14 mm | 72% | 15 km/h |
| September | 32°C | 25°C | 15°C / 37°C | 84 mm | 78% | 13 km/h |
| October | 30°C | 21°C | 7°C / 36°C | 30 mm | 76% | 14 km/h |
| November | 26°C | 17°C | 2°C / 33°C | 53 mm | 77% | 15 km/h |
| December | 24°C | 14°C | -3°C / 32°C | 31 mm | 78% | 15 km/h |
Best time to visit Brownsville
The most comfortable time to visit Brownsville is generally December to February, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around September, totalling about 424 mm a year.
Travellers who prefer heat should aim for August, when highs average 35°C. September is the month to avoid if rain would spoil your plans — it averages 84 mm, roughly 6× the rainfall of the driest month (August).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Brownsville forecast for what is happening now.
Weather across United States right now
- Atlanta25°C
- Austin26°C
- Baltimore21°C
- Boston19°C
- Brooklyn22°C
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- Dallas26°C
- Denver18°C
- Detroit21°C
- Houston27°C
- Indianapolis24°C
- Las Vegas24°C
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- Minneapolis22°C
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- Philadelphia23°C
- Phoenix30°C
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- Queens23°C
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- Washington22°C
