Current sea water temperature:
+73.0°F
| Minimum sea water temperature in April: | 79.0°F |
| Maximum sea water temperature in April: | 65.7°F |
| Average sea water temperature in April: | 72.6°F |
| more information | |
14 days
forecast
forecast
| Galveston Island |
monthly
weather
weather
| Galveston Island |
Sea water temperature for the last 10 days:
| April 9 | 73.0°F | April 4 | 75.2°F |
| April 8 | 73.8°F | April 3 | 72.7°F |
| April 7 | 73.9°F | April 2 | 73.6°F |
| April 6 | 74.7°F | April 1 | 73.2°F |
| April 5 | 75.0°F | March 31 | 73.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Galveston Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Galveston Island was noticed in August, July and September.
Monthly Sea Temperatures in Galveston Island, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 87.8°F. The highest and lowest sea temperatures during the month were 89.1°F and 86.4°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 87.4°F and 83.7°F.
current
weather
weather
| Galveston Island |
weather in
April
April
| Galveston Island |
Best time for vacation in Galveston Island
Galveston Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Galveston Island
Local time: 04:39
April 09, thursday
0600
68°F
W
17 mph
17 mph
0900
72°F
W
18 mph
18 mph
1200
75°F
W
19 mph
19 mph
1500
77°F
W
21 mph
21 mph
1800
73°F
W
20 mph
20 mph
2100
72°F
W
22 mph
22 mph
April 10, friday
0000
72°F
NW
24 mph
24 mph
0300
72°F
NW
21 mph
21 mph
