Measurements:
°C
°F
CURRENT WEATHER
23:49
Galveston Island
78°F
NW 11 mph
Feels like: 80°F
Precip: 15%
World Resorts USA Galveston Island Weather

7 Day Weather Forecast

10.26
mon
DAY
76°F
W 15 mph
precip
12%
NIGHT
78°F
NW 11 mph
precip
15%
10.27
tue
DAY
78°F
W 16 mph
precip
24%
NIGHT
78°F
NW 14 mph
precip
22%
10.28
wed
DAY
78°F
W 14 mph
precip
21%
NIGHT
78°F
NW 12 mph
precip
21%
10.29
thu
DAY
76°F
W 14 mph
precip
12%
NIGHT
78°F
NW 13 mph
precip
18%
10.30
fri
DAY
78°F
W 14 mph
precip
69%
NIGHT
78°F
NW 10 mph
precip
28%
10.31
sat
DAY
78°F
S 3 mph
precip
11%
NIGHT
78°F
NE 3 mph
precip
11%
11.01
sun
DAY
78°F
W 5 mph
precip
15%
NIGHT
78°F
N 10 mph
precip
25%

Galveston Island Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Galveston Island was 27.1°F. The maximum and minimum values were 23.7°F and 29.2°F respectively.

Galveston Island on the Weather Map

Best Time to Visit Galveston Island
The most sunny months:
October 16 days
August 15 days
November 14 days
The most warm months:
August 93.8 °F
July 92.9 °F
June 91.6 °F
Warmest sea temperature:
August 91.6 °F
July 90.2 °F
September 89.3 °F
The most cold months:
January 59.6 °F
February 61.8 °F
December 64.9 °F
The most rainy months:
November 3 days
July 3 days
May 3 days
The most windy months:
April 12 mph
January 11 mph
May 11 mph
more details