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Weslaco (TX) Weather and Climate: A Comprehensive Guide

The temperature in Weslaco can vary greatly throughout the year. The temperatures shift from very hot to pleasant. It maintains moderate precipitation patterns. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from very hot to pleasant in Weslaco. Typically, average maximum daytime temperatures range from a very hot 36°C in August to a pleasant 21°C in the coolest month, January.

Nights are cooler, with lows often dropping to around 10°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Weslaco has a moderate amount of precipitation, averaging 682 mm of rainfall annually. The climate in Weslaco shows significant variation throughout the year. Expect high rainfall in September, with an average of 149 mm of precipitation over 13 rainy days.

In contrast, February offers drier and sunnier days, with around 23 mm of rainfall over 5 rainy days. For more details, please visit our Weslaco Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Weslaco serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.9 hours of sunshine daily, and embrace the darker days in January, offering only 4.4 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

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

Daily hours of sunshine

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

Forecast for Weslaco (TX)

Mon   Dec 23
27°C | 18°C
S 8 m/s
almost clear and no rain

almost clear and no rain

Tue   Dec 24
29°C | 17°C
S 7 m/s
almost clear and no rain

almost clear and no rain

Wed   Dec 25
27°C | 17°C
SW 2 m/s
partly cloudy and no rain

partly cloudy and no rain

The best time of year to visit Weslaco in the United States of America

During the months of January, February and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Weslaco?
    August has an average maximum temperature of 36°C and is the warmest month of the year.
  • Which is the coldest month in Weslaco?
    The coldest month is January with an average maximum temperature of 21°C.
  • Which is the wettest month in Weslaco?
    September tops the wettest month list with 149 mm of rainfall.
  • Which is the driest month in Weslaco?
    February is the driest month with 23 mm of precipitation.
  • Which is the sunniest month in Weslaco?
    July is the sunniest month with an average of 326 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.