Weather in Brownsville in July

United States · 20-year averages, July

Shoulder season. July is shoulder season in Brownsville — cheaper, quieter, and a genuine gamble. Highs average 33.8 °C, lows 25.9 °C, and rain falls on 8 days — nothing in the month is working against you.

July ranks 9 of 12 in Brownsville: past the worst of the year but short of February, which is the month to book if the dates are open.

Rain on 8 days, 2 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 33.8 °C days and 25.9 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 10 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest July day reached 39.7 °C and the coldest night fell to 22.1 °C, and the wettest single day dropped 123 mm — roughly 158% of the month's rain in one day.

This is the volatile part. July rainfall has ranged from 5 mm to 311 mm across the twenty years measured — a 306 mm spread around an average of 78 mm. The average is real but almost no individual July looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 13.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 72%.

How July sits in the year

Temperatures hold steady either side: 34.4 °C in June, 33.8 here, 34.5 in August. Nothing about the timing within the month matters much.

Daylight in July

July is at or near the longest days of Brownsville's year: 13.6 hours of daylight, holding steady all month. Evenings are the real gain — dinner outdoors still happens in full light.

Sea temperature

The sea sits at about 28.9 °C in July — warm enough that the water offers no relief from the heat. This is the warmest the water gets all year.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

July in Brownsville versus nearby

If Brownsville is one option among several, the nearby comparison is worth making. Corpus Christi is close enough to be a coin toss — within a degree on temperature, 2 days more rain. Laredo is the weaker option in July — 3.3 °C warmer, the same number of rain days.

So: July is a compromise. February is 38 points better and is what Brownsville is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Brownsville

MonthHigh °CLow °CRain daysRain mmHumidity %Daylight hSea °CScore
January22.312.5 5257510.72291
February24.514.2 4227411.321.492
March27.517.1 430721221.990
April30.720.4 4357112.723.976
May32.723.3 6577113.426.262
June34.425.6 8797013.728.348
July33.825.9 8787213.628.954
August34.526.4 8447013.129.448
September32.525 151447412.329.444
October30.721.8 8637211.628.268
November26.717.5 5397310.925.791
December23.413.7 4307410.523.592

See all twelve months in Brownsville, or where else to go in July.

Planning the rest of the trip

Built and maintained by Amit Sharma, Auckland, New Zealand. I build these sites so the answer is free and the data is public.

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