July Weather in Galveston, United States

Last updated: June 24, 2025

In July, the average temperature in Galveston, United States hovers around 24°C (76°F), providing a pleasant climate. Expect lows of 13°C (56°F) and highs reaching up to 34°C (93°F). Be prepared for some rain, as you'll see an average precipitation of 97 mm (3.8 in) over approximately 12 days. The air tends to be quite humid, with an average humidity of 81%, making it feel even warmer.

July Temperature in Galveston

In July in Galveston, the average temperature is 24°C (76°F). Maximums can reach 34°C (93°F), while minimums can drop as low as 13°C (56°F). It's an ideal time for travelers to enjoy a variety of outdoor activities in pleasant weather.

July Weather in Galveston: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Galveston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Galveston, July typically has an average temperature of 24°C (76°F), with highs reaching up to 34°C (93°F) and lows dropping to around 13°C (56°F).

Data source: Temperature data for Galveston generated using information from the Copernicus Climate Change Service.

July Precipitation in Galveston

In Galveston in July, the precipitation amount is 97 mm (3.8 in) spread over 12 days.

July Precipitation Trends in Galveston

The chart displays monthly precipitation patterns in Galveston, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Galveston, July typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Galveston

In Galveston in July, humidity is 81%. With an average temperature of 24°C (76°F), this humidity feels like a warm, muggy embrace that can make outdoor activities feel exhausting, leaving travelers in need of frequent breaks and plenty of hydration.

July Average Humidity in Galveston

This chart illustrates the average monthly humidity levels in Galveston, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Galveston is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Galveston

In Galveston in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Galveston.

Maximum UV Index Levels in Galveston for July

The chart shows the monthly maximum UV Index (UVI) for Galveston in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Galveston typically reaches 10, which falls under the very high exposure category.

Data source: Galveston July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How July Weather in Galveston Compares to Other Months

Weather in Galveston varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Galveston, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Galveston, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	76 mm (3.0 inches)	85%	moderate
February Weather	0°C (32°F)	82 mm (3.2 inches)	85%	moderate
March Weather	5°C (42°F)	104 mm (4.1 inches)	86%	high
April Weather	11°C (51°F)	93 mm (3.7 inches)	87%	very high
May Weather	18°C (64°F)	152 mm (6.0 inches)	81%	very high
June Weather	23°C (73°F)	105 mm (4.2 inches)	82%	extreme
July Weather	24°C (76°F)	97 mm (3.8 inches)	81%	very high
August Weather	23°C (74°F)	101 mm (4.0 inches)	79%	very high
September Weather	21°C (69°F)	67 mm (2.6 inches)	78%	very high
October Weather	14°C (57°F)	105 mm (4.1 inches)	81%	high
November Weather	5°C (41°F)	79 mm (3.1 inches)	89%	moderate
December Weather	2°C (35°F)	66 mm (2.6 inches)	86%	low