Current sea water temperature:
+66.2°F
| Minimum sea water temperature in March: | 74.5°F |
| Maximum sea water temperature in March: | 56.7°F |
| Average sea water temperature in March: | 65.7°F |
| more information | |
14 days
forecast
forecast
| Galveston Island |
monthly
weather
weather
| Galveston Island |
Sea water temperature for the last 10 days:
| March 18 | 66.2°F | March 13 | 70.5°F |
| March 17 | 68.7°F | March 12 | 72.3°F |
| March 16 | 69.8°F | March 11 | 70.9°F |
| March 15 | 70.2°F | March 10 | 70.7°F |
| March 14 | 69.8°F | March 9 | 70.7°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
March
March
| 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: 18:02
March 18, wednesday
2100
61°F
NW
14 mph
14 mph
March 19, thursday
0000
59°F
N
14 mph
14 mph
0300
59°F
N
13 mph
13 mph
0600
63°F
N
12 mph
12 mph
0900
64°F
N
10 mph
10 mph
1200
64°F
N
9 mph
9 mph
1500
68°F
N
11 mph
11 mph
1800
70°F
N
14 mph
14 mph
