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

In Houston, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very hot 35°C (95°F) in August. In January, the coolest month of the year, temperatures drop to a moderate 17°C (63°F).

At night, temperatures range from around 25°C (77°F) in August to 7°C (45°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Houston experiences significant rainfall throughout the year, averaging 1507 mm (59 in) of precipitation annually. Houston can be quite wet during July, receiving approximately 191 mm (7.5 in) of precipitation over 15 rainy days.

In contrast, during the driest month (February), you will experience much drier conditions, with 67 mm (2.6 in) of precipitation spread across 9 rainy days days. For more details, please visit our Houston Precipitation page.

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

The average number of days each month with precipitation

Houston can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.8 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 4.7 hours of sunlight per day.

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 Houston.

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

The mean wind speed varies between 3 m/s (6 knots) and 4 m/s (8 knots) throughout the year. It is lowest in May, June, July, August, September, October, November and December and highest during February. What does this mean?

The mean monthly wind speed over the year (meters per second)