18.03
wed
wed
Day
66°F
N 13 mph
Precip.
0%
0%
Night
63°F
N 13 mph
Precip.
0%
0%
19.03
thu
thu
Day
64°F
N 11 mph
Precip.
0%
0%
Night
66°F
N 16 mph
Precip.
0%
0%
20.03
fri
fri
Day
68°F
N 13 mph
Precip.
0%
0%
Night
66°F
N 13 mph
Precip.
0%
0%
21.03
sat
sat
Day
66°F
NE 14 mph
Precip.
0%
0%
Night
68°F
N 15 mph
Precip.
0%
0%
22.03
sun
sun
Day
70°F
N 14 mph
Precip.
0%
0%
Night
68°F
N 12 mph
Precip.
0%
0%
23.03
mon
mon
Day
70°F
N 6 mph
Precip.
0%
0%
Night
70°F
N 12 mph
Precip.
0%
0%
24.03
tue
tue
Day
70°F
NW 8 mph
Precip.
0%
0%
Night
68°F
N 14 mph
Precip.
0%
0%
25.03
wed
wed
Day
70°F
N 14 mph
Precip.
0%
0%
Night
70°F
N 16 mph
Precip.
0%
0%
26.03
thu
thu
Day
72°F
N 15 mph
Precip.
0%
0%
Night
70°F
NE 6 mph
Precip.
0%
0%
27.03
fri
fri
Day
59°F
SW 29 mph
Precip.
0%
0%
Night
59°F
SW 23 mph
Precip.
0%
0%
28.03
sat
sat
Day
55°F
W 13 mph
Precip.
0%
0%
Night
61°F
NW 15 mph
Precip.
0%
0%
29.03
sun
sun
Day
66°F
W 14 mph
Precip.
22%
22%
Night
68°F
NW 19 mph
Precip.
0%
0%
30.03
mon
mon
Day
68°F
NW 17 mph
Precip.
67%
67%
Night
70°F
N 17 mph
Precip.
42%
42%
31.03
tue
tue
Day
72°F
N 19 mph
Precip.
24%
24%
Night
70°F
NW 16 mph
Precip.
25%
25%
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 March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 68.9°F. The highest and lowest sea temperatures during the month were 72.3°F and 63.5°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 74.4°F. The highest and lowest sea temperatures during the month were 79.0°F and 69.4°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: 16:37
March 18, wednesday
1800
68°F
NW
10 mph
10 mph
2100
61°F
N
14 mph
14 mph
March 19, thursday
0000
63°F
N
13 mph
13 mph
0300
64°F
N
12 mph
12 mph
0600
64°F
N
12 mph
12 mph
0900
64°F
N
10 mph
10 mph
1200
64°F
N
11 mph
11 mph
1500
68°F
N
11 mph
11 mph
