Brownsville (TX) Temperature by Month
Brownsville, Texas, United States of America has an average annual maximum temperature of 29°C (84°F), ranging from 21°C (70°F) in January to 35°C (95°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Brownsville Monthly Temperatures
The climate in Brownsville is dynamic, ranging widely from pleasant in winter to very hot in summer. Nights are significantly colder, with lows dropping from 25°C (77°F) in August to 10°C (50°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Brownsville by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 307 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Brownsville vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Brownsville vs World: Temperature Compared
Brownsville's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Brownsville?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Brownsville, January is the coolest month, with average highs of 21°C (70°F) and humidity around 78% — considered high. In August, the warmest month, temperatures average 35°C (95°F) with 73% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Brownsville's weather — including monthly rainfall, sunshine hours, and humidity — visit our Brownsville climate page.
