Measurements:
°C
°F
Galveston
78°F
NW 11 mph
Feels like: 80°F
Precip: 15%
World Resorts USA Galveston Weather

Galveston Sea Water Temperature

Current Sea Water Temperature:
+78.6°F
Maximum Sea Water Temperature in October: 89.2°F
Minimum Sea Water Temperature in October: 73.0°F
Average water temperature in October: 81.9°F

Sea Water Temperature for the Last 10 Days:

October 26 78.6°F October 21 80.0°F
October 25 78.4°F October 20 81.0°F
October 24 77.6°F October 19 80.6°F
October 23 77.4°F October 18 82.6°F
October 22 77.4°F October 17 85.0°F

When is the Warmest Sea for Galveston?

According to our data for the last three years for Galveston the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Galveston was 91.4°F. The maximum and minimum values were 90.0°F and 92.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Galveston was 90.5°F. The maximum and minimum values were 89.0°F and 92.0°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Galveston was 91.1°F. The maximum and minimum values were 89.0°F and 92.8°F respectively.

Best Time to Visit Galveston
The most sunny months:
October 16 days
August 15 days
November 14 days
The most warm months:
August 93.8 °F
July 92.9 °F
June 91.6 °F
Warmest sea temperature:
August 91.5 °F
July 90.0 °F
September 89.1 °F
The most cold months:
January 59.6 °F
February 61.8 °F
December 64.9 °F
The most rainy months:
November 3 days
July 3 days
May 3 days
The most windy months:
April 12 mph
January 11 mph
May 11 mph

Galveston on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +58
Hawaii +80
Houston +74
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +64
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +72
Washington +58
24 Hours Weather Forecast
Galveston
Local time: 23:49
27 oct, tuesday
0000 78°F
NW
11 mph
0300 78°F
NW
12 mph
0600 78°F
NW
11 mph
0900 78°F
W
11 mph
1200 78°F
W
16 mph
1500 78°F
W
16 mph
1800 78°F
W
16 mph
2100 78°F
NW
16 mph