23.05
sat
sat
Day
77°F
N 13 mph
Precip.
0%
0%
Night
75°F
SW 6 mph
Precip.
100%
100%
24.05
sun
sun
Day
77°F
W 19 mph
Precip.
100%
100%
Night
79°F
NW 16 mph
Precip.
100%
100%
25.05
mon
mon
Day
81°F
N 11 mph
Precip.
0%
0%
Night
79°F
NW 15 mph
Precip.
71%
71%
26.05
tue
tue
Day
82°F
NE 11 mph
Precip.
100%
100%
Night
81°F
N 16 mph
Precip.
0%
0%
27.05
wed
wed
Day
73°F
S 20 mph
Precip.
100%
100%
Night
79°F
NW 16 mph
Precip.
0%
0%
28.05
thu
thu
Day
79°F
NW 13 mph
Precip.
100%
100%
Night
77°F
NW 13 mph
Precip.
0%
0%
29.05
fri
fri
Day
81°F
N 4 mph
Precip.
100%
100%
Night
81°F
W 6 mph
Precip.
0%
0%
30.05
sat
sat
Day
77°F
SW 7 mph
Precip.
100%
100%
Night
73°F
SW 21 mph
Precip.
30%
30%
31.05
sun
sun
Day
70°F
SW 17 mph
Precip.
0%
0%
Night
75°F
SW 18 mph
Precip.
0%
0%
01.06
mon
mon
Day
72°F
SW 11 mph
Precip.
0%
0%
Night
75°F
SW 11 mph
Precip.
0%
0%
02.06
tue
tue
Day
73°F
SW 11 mph
Precip.
0%
0%
Night
75°F
N 3 mph
Precip.
0%
0%
03.06
wed
wed
Day
75°F
SW 7 mph
Precip.
0%
0%
Night
79°F
NW 7 mph
Precip.
0%
0%
04.06
thu
thu
Day
79°F
W 8 mph
Precip.
0%
0%
Night
79°F
NW 15 mph
Precip.
54%
54%
05.06
fri
fri
Day
79°F
NW 8 mph
Precip.
27%
27%
Night
79°F
NW 12 mph
Precip.
43%
43%
sea water
temperature
temperature
| Galveston Island |
monthly
weather
weather
| Galveston Island |
current
weather
weather
| Galveston Island |
7 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: 18:03
May 23, saturday
2100
72°F
NE
8 mph
8 mph
May 24, sunday
0000
75°F
SW
6 mph
6 mph
0300
77°F
W
12 mph
12 mph
0600
77°F
W
8 mph
8 mph
0900
77°F
W
11 mph
11 mph
1200
77°F
W
19 mph
19 mph
1500
79°F
W
11 mph
11 mph
1800
81°F
NW
8 mph
8 mph
