Alvin (TX) Weather & Climate: Best Time to Visit

The climate in Alvin 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 (93°F) in August to a moderate 17°C (63°F) in the coolest month, January.

Nights vary from 24°C (75°F) in August to around 6°C (43°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Alvin has a notably wet climate with abundant precipitation, recording 1346 mm (53 in) of rainfall per year. The climate in Alvin shows significant variation throughout the year. Expect high rainfall in July, the wettest month, with an average of 155 mm (6.1 in) of precipitation over 15 rainy days.

In contrast, the driest month February offers drier and sunnier days, with around 56 mm (2.2 in) of rainfall over 9 rainy days. For more details, please visit our Alvin Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Alvin serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.8 hours of sunshine daily, and embrace the darker days in January, offering only 4.7 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Alvin.

The city experiences its highest humidity in September, reaching 77%. In March, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year