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Port Lavaca (TX) Weather and Climate: A Comprehensive Guide

Port Lavaca experiences great temperature shifts. The city's weather can transition from very warm days to mild weather. It is also known for its large amounts of rainfall. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

The climate in Port Lavaca is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a very warm 34°C in August to a moderate 18°C in the coolest month, January.

Nights are cooler, with lows often dropping to around 7°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Port Lavaca has a notably wet climate with abundant precipitation, recording 1005 mm of rainfall per year. The climate in Port Lavaca shows significant variation throughout the year. Expect high rainfall in July, with an average of 135 mm of precipitation over 10 rainy days.

In contrast, February offers drier and sunnier days, with around 34 mm of rainfall over 7 rainy days. For more details, please visit our Port Lavaca Precipitation page.

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

Forecast for Port Lavaca (TX)

Fri   Dec 27
24°C | 15°C
SE 3 m/s
almost clear and no rain

almost clear and no rain

Sat   Dec 28
28°C | 16°C
SW 8 m/s
1.1 mm
partly cloudy and  chance of rain

partly cloudy and chance of rain

Sun   Dec 29
24°C | 11°C
SE 2 m/s
clear and no rain

clear and no rain

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

During the months of March and November 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 Port Lavaca?
    August has an average maximum temperature of 34°C and is the warmest month of the year.
  • Which is the coldest month in Port Lavaca?
    The coldest month is January with an average maximum temperature of 18°C.
  • Which is the wettest month in Port Lavaca?
    July tops the wettest month list with 135 mm of rainfall.
  • Which is the driest month in Port Lavaca?
    February is the driest month with 34 mm of precipitation.

  • 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.