Current sea water temperature:
+61.9°F
| Minimum sea water temperature in December: | 68.4°F |
| Maximum sea water temperature in December: | 53.2°F |
| Average sea water temperature in December: | 62.8°F |
| more information | |
14 days
forecast
forecast
| Galveston |
monthly
weather
weather
| Galveston |
Sea water temperature for the last 10 days:
| December 14 | 61.9°F | December 9 | 61.3°F |
| December 13 | 60.8°F | December 8 | 63.5°F |
| December 12 | 59.5°F | December 7 | 65.3°F |
| December 11 | 60.1°F | December 6 | 65.5°F |
| December 10 | 59.9°F | December 5 | 65.7°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
December
December
| Galveston |
Best time for vacation in Galveston
Galveston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Galveston
Local time: 00:57
December 15, monday
0300
36°F
SW
18 mph
18 mph
0600
34°F
SW
14 mph
14 mph
0900
37°F
SW
14 mph
14 mph
1200
43°F
SW
8 mph
8 mph
1500
46°F
SW
6 mph
6 mph
1800
52°F
W
7 mph
7 mph
2100
52°F
NW
9 mph
9 mph
December 16, tuesday
0000
54°F
NW
9 mph
9 mph
