Galveston Weather in July

The climate in Galveston during July can be summarized as very hot, humid and a little damp.

July is in the summer in Galveston and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (89°F), whilst at night 26°C (78°F) is normal.

On average July is the 5th wettest month of the year in Galveston with around 99mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.5 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Galveston in July 2025.