Current sea water temperature:
+86.2°F
| Minimum sea water temperature in July: | 89.1°F |
| Maximum sea water temperature in July: | 84.0°F |
| Average sea water temperature in July: | 86.1°F |
| more information | |
14 days
forecast
forecast
| Galveston Island |
monthly
weather
weather
| Galveston Island |
Sea water temperature for the last 10 days:
| July 2 | 86.2°F | June 27 | 84.9°F |
| July 1 | 84.9°F | June 26 | 84.9°F |
| June 30 | 84.7°F | June 25 | 85.3°F |
| June 29 | 85.3°F | June 24 | 84.9°F |
| June 28 | 85.1°F | June 23 | 85.1°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
July
July
| 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: 02:22
July 03, friday
0300
79°F
N
8 mph
8 mph
0600
79°F
N
6 mph
6 mph
0900
84°F
N
5 mph
5 mph
1200
84°F
NW
5 mph
5 mph
1500
84°F
NW
10 mph
10 mph
1800
84°F
N
12 mph
12 mph
2100
84°F
N
12 mph
12 mph
July 04, saturday
0000
84°F
N
12 mph
12 mph
