The highest day temperature in July 2025 was 107°F. The lowest night temperature was 79°F. The average values for day and night temperatures during July were 98.3°F и 82.7°F respectivly.

The average sea surface temperature in July 2025 for Houston was 90.4°F. The maximum and minimum values were 89.2°F and 92.6°F respectively.

Most of the days in July are cloudy but you can also expect sunny or gloomy days.

Precipitation total in July for Houston is 4.3 in. It makes july one of the most rainy months of the year.

The average wind speed in July is 7.2 mph. It makes July one of the most windless months of the year for Houston.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Houston in July is 8.5 hours.