12.08
wed
wed
Day
90°F
N 11 mph
Precip.
9%
9%
Night
82°F
N 19 mph
Precip.
9%
9%
13.08
thu
thu
Day
86°F
N 14 mph
Precip.
5%
5%
Night
84°F
N 17 mph
Precip.
19%
19%
14.08
fri
fri
Day
86°F
NW 11 mph
Precip.
7%
7%
Night
84°F
N 17 mph
Precip.
13%
13%
15.08
sat
sat
Day
84°F
NW 6 mph
Precip.
5%
5%
Night
84°F
N 14 mph
Precip.
6%
6%
16.08
sun
sun
Day
84°F
N 3 mph
Precip.
5%
5%
Night
84°F
N 15 mph
Precip.
6%
6%
17.08
mon
mon
Day
84°F
N 6 mph
Precip.
7%
7%
Night
84°F
N 17 mph
Precip.
5%
5%
18.08
tue
tue
Day
84°F
N 9 mph
Precip.
5%
5%
Night
84°F
N 16 mph
Precip.
11%
11%
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 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.
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: 22:26
August 13, thursday
0000
82°F
N
19 mph
19 mph
0300
81°F
N
20 mph
20 mph
0600
84°F
N
17 mph
17 mph
0900
84°F
N
17 mph
17 mph
1200
86°F
N
14 mph
14 mph
1500
86°F
N
14 mph
14 mph
1800
86°F
N
16 mph
16 mph
2100
84°F
N
18 mph
18 mph
