23.05
sat
sat
Day
79°F
N 12 mph
Precip.
88%
88%
Night
72°F
SW 20 mph
Precip.
65%
65%
24.05
sun
sun
Day
79°F
SW 11 mph
Precip.
100%
100%
Night
79°F
NW 14 mph
Precip.
0%
0%
25.05
mon
mon
Day
81°F
NW 6 mph
Precip.
62%
62%
Night
79°F
N 17 mph
Precip.
0%
0%
26.05
tue
tue
Day
81°F
NW 6 mph
Precip.
0%
0%
Night
81°F
NW 14 mph
Precip.
0%
0%
27.05
wed
wed
Day
81°F
N 16 mph
Precip.
100%
100%
Night
79°F
NW 14 mph
Precip.
0%
0%
28.05
thu
thu
Day
81°F
N 9 mph
Precip.
100%
100%
Night
77°F
NW 14 mph
Precip.
0%
0%
29.05
fri
fri
Day
81°F
E 2 mph
Precip.
100%
100%
Night
79°F
S 12 mph
Precip.
100%
100%
sea water
temperature
temperature
| Galveston Island |
monthly
weather
weather
| Galveston Island |
current
weather
weather
| Galveston Island |
14 days
forecast
forecast
| Galveston Island |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 77.7°F. The highest and lowest sea temperatures during the month were 80.1°F and 75.6°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 84.8°F. The highest and lowest sea temperatures during the month were 87.4°F and 82.0°F.
Air temperature in Galveston Island, °F
Precipitation total in Galveston Island, in.
* Charts above show average data for the last 3 years.
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: 18:46
May 23, saturday
2100
72°F
S
14 mph
14 mph
May 24, sunday
0000
72°F
SW
20 mph
20 mph
0300
72°F
SW
11 mph
11 mph
0600
75°F
W
16 mph
16 mph
0900
77°F
NW
16 mph
16 mph
1200
79°F
SW
11 mph
11 mph
1500
79°F
SW
11 mph
11 mph
1800
81°F
W
11 mph
11 mph
