Current sea water temperature:
+77.2°F
| Minimum sea water temperature in May: | 84.0°F |
| Maximum sea water temperature in May: | 71.4°F |
| Average sea water temperature in May: | 78.6°F |
| more information | |
14 days
forecast
forecast
| Galveston |
monthly
weather
weather
| Galveston |
Sea water temperature for the last 10 days:
| May 16 | 77.2°F | May 11 | 77.2°F |
| May 15 | 78.4°F | May 10 | 76.6°F |
| May 14 | 78.3°F | May 9 | 76.1°F |
| May 13 | 77.9°F | May 8 | 76.1°F |
| May 12 | 77.2°F | May 7 | 76.1°F |
Monthly sea water temperature, °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.
current
weather
weather
| Galveston |
weather in
May
May
| Galveston |
Best time for vacation in Galveston
Galveston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Galveston
Local time: 16:53
May 16, saturday
1800
79°F
NW
20 mph
20 mph
2100
77°F
NW
21 mph
21 mph
May 17, sunday
0000
77°F
NW
22 mph
22 mph
0300
79°F
NW
21 mph
21 mph
0600
79°F
NW
20 mph
20 mph
0900
79°F
NW
21 mph
21 mph
1200
79°F
NW
21 mph
21 mph
1500
79°F
NW
20 mph
20 mph
