Weslaco Weather in September

Thinking of visiting Weslaco in September? Expect very high temperatures reaching 34°C (93°F) during the day, dropping to 23°C (73°F) at night, and be prepared for the wettest month of the year.

Rainfall in Weslaco in September

Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. Historically, September sees about 13 days of rain, with a monthly average of 149 mm (5.9 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Weslaco in September

Temperatures in Weslaco in September top out at 34°C (93°F) and drop to 23°C (73°F) overnight. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. At 23°C (73°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.

Sunshine in Weslaco in September

The city usually sees around 246 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Weslaco. Our weather planner can help you explore destinations with more pleasant weather conditions.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Weslaco's climate page.

Weslaco Temperature in September

Min Temperature 23°C (73°F)  

Max Temperature 34°C (93°F)  

Chance of Rain 43%  

Precipitation 149 mm (5.9 in)  

Rainy days 13 days  

Humidity 76% *  

Sunshine 246 hours *  

Percentage Sunshine 67% *  

* Data from: Brownsville, the United States of America (62 KM, 38 Miles).

What to Wear in Weslaco in September

Pack for serious heat in Weslaco in September. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Weslaco in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Weslaco's climate page.

More climate data for Weslaco

Temperature Rainfall Sunshine Humidity

See the full Weslaco climate overview or explore weather in the United States of America.