Measurements:
°C
°F
CURRENT WEATHER
13:19
Galveston Island
80°F
NW 13 mph
Feels like: 84°F
Precip: 77%
World Resorts USA Galveston Island Weather

7 Day Weather Forecast

04.23
thu
DAY
80°F
NW 13 mph
precip
77%
NIGHT
76°F
NW 17 mph
precip
0%
04.24
fri
DAY
78°F
N 12 mph
precip
0%
NIGHT
78°F
N 13 mph
precip
0%
04.25
sat
DAY
78°F
N 10 mph
precip
0%
NIGHT
78°F
N 11 mph
precip
0%
04.26
sun
DAY
80°F
N 11 mph
precip
0%
NIGHT
78°F
N 13 mph
precip
0%
04.27
mon
DAY
80°F
N 13 mph
precip
0%
NIGHT
78°F
N 11 mph
precip
0%
04.28
tue
DAY
80°F
N 11 mph
precip
0%
NIGHT
80°F
NE 9 mph
precip
0%
04.29
wed
DAY
80°F
NW 10 mph
precip
0%
NIGHT
80°F
N 11 mph
precip
0%

Galveston Island Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Galveston Island was 23.6°F. The maximum and minimum values were 22.6°F and 24.9°F respectively.

Galveston Island on the Weather Map

Best Time to Visit Galveston Island
The most sunny months:
October 18 days
September 14 days
November 14 days
The most warm months:
August 93.5 °F
July 92.6 °F
June 92.0 °F
Warmest sea temperature:
August 91.7 °F
July 90.2 °F
September 89.0 °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 11 mph
January 11 mph
May 11 mph
more details