June Weather in Galveston, United States

Last updated: June 24, 2025

In June, the average temperature in Galveston, United States is a pleasant 23°C (73°F). Expect a range from a cool 10°C (50°F) to a warm 34°C (94°F). During this month, you'll likely encounter about 105 mm (4.2 in) of precipitation across 13 days, with an average humidity of 82%.

June Temperature in Galveston

In June in Galveston, the average temperature is 23°C (73°F). Maximum temperatures can reach 34°C (94°F), while the minimum can drop as low as 10°C (50°F). Overall, it’s a great time for travelers to enjoy mild weather, making it ideal for outdoor activities and exploration.

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

The chart illustrates June 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, June typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 10°C (50°F).

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

June Precipitation in Galveston

In Galveston in June, the precipitation amount is 105 mm (4.2 in) spread over a span of 13 days.

June Precipitation Trends in Galveston

The chart displays monthly precipitation patterns in Galveston, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Galveston, June typically receives around 105 mm (4.2 inches) of precipitation spread over approximately 13 days.

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

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Millimeters (mm) Inches (in)

June Humidity in Galveston

In Galveston in June, humidity is 82%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities feel a bit more strenuous but offering a tropical ambiance perfect for leisurely strolls and relaxed sightseeing.

June Average Humidity in Galveston

This chart illustrates the average monthly humidity levels in Galveston, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Galveston is approximately 82%, offering insight into how humid the weather typically is during this month.

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

June UV Index in Galveston

In Galveston in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Galveston.

Maximum UV Index Levels in Galveston for June

The chart shows the monthly maximum UV Index (UVI) for Galveston in June, 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 June, the maximum UV index in Galveston typically reaches 11, which falls under the extreme exposure category.

Data source: Galveston June 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 June 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 June’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 June’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