World Resorts USA Galveston Weather

Galveston sea water temperature

Current sea water temperature:
+75.4°F
Minimum sea water temperature in April: 78.6°F
Maximum sea water temperature in April: 65.3°F
Average sea water temperature in April: 72.4°F

Sea water temperature for the last 10 days:

April 26 75.4°F April 21 74.8°F
April 25 74.8°F April 20 75.4°F
April 24 74.3°F April 19 76.3°F
April 23 72.9°F April 18 76.1°F
April 22 73.8°F April 17 75.4°F

When is the warmest sea in Galveston?

Based on the data about daily sea water temperature for the last three years the warmest sea in Galveston was noticed in August, July and September.

Monthly Sea Temperatures in Galveston, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 87.9°F. The highest and lowest sea temperatures during the month were 89.2°F and 86.5°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 86.4°F. The highest and lowest sea temperatures during the month were 88.0°F and 85.1°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 85.5°F. The highest and lowest sea temperatures during the month were 87.3°F and 83.8°F.

Best time for vacation in Galveston

Sunniest months:
October 18 days
September 14 days
November 14 days
Warmest months:
August 89.2 °F
July 88.3 °F
June 87.8 °F
Warmest sea temp:
August 87.4 °F
July 86.0 °F
September 84.9 °F
Coldest months:
January 58.6 °F
February 60.6 °F
December 63.4 °F
Rainiest months:
November 3 days
July 3 days
May 3 days
Windiest months:
April 11.7 mph
January 11.5 mph
May 11.0 mph

Galveston on a weather map

Galveston
+77°F
NW 14 mph
Feels like: +82°F
Precip.: 0%
Places in USA:
Name
°F
+57°F
+75°F
+75°F
+61°F
+68°F
+88°F
+82°F
+72°F
+50°F
+66°F
+59°F
+82°F
+90°F
+88°F
+50°F
24 Hours Forecast
Galveston
Local time: 14:34
April 26, sunday
1500
77°F
NW
14 mph
1800
75°F
NW
12 mph
2100
73°F
NW
13 mph
April 27, monday
0000
75°F
NW
16 mph
0300
75°F
NW
14 mph
0600
75°F
NW
16 mph
0900
75°F
NW
17 mph
1200
77°F
N
16 mph
Units of measurement: °C / °F