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Galveston Island Weather

Galveston Island 14 Days Forecast

21.12
sun

Day

64°F

NE 6 mph

Precip.
0%

Night

64°F

N 9 mph

Precip.
0%

22.12
mon

Day

64°F

N 9 mph

Precip.
0%

Night

63°F

NW 12 mph

Precip.
0%

23.12
tue

Day

63°F

NW 8 mph

Precip.
0%

Night

64°F

NW 11 mph

Precip.
0%

24.12
wed

Day

64°F

W 9 mph

Precip.
0%

Night

64°F

NW 8 mph

Precip.
0%

25.12
thu

Day

64°F

NW 6 mph

Precip.
0%

Night

64°F

N 9 mph

Precip.
0%

26.12
fri

Day

64°F

NE 9 mph

Precip.
0%

Night

64°F

N 10 mph

Precip.
0%

27.12
sat

Day

64°F

N 6 mph

Precip.
0%

Night

64°F

NW 9 mph

Precip.
0%

28.12
sun

Day

64°F

NW 8 mph

Precip.
0%

Night

64°F

NW 11 mph

Precip.
0%

29.12
mon

Day

64°F

NW 11 mph

Precip.
0%

Night

64°F

NW 11 mph

Precip.
80%

30.12
tue

Day

66°F

NW 9 mph

Precip.
0%

Night

64°F

NW 11 mph

Precip.
0%

31.12
wed

Day

63°F

S 7 mph

Precip.
100%

Night

57°F

S 13 mph

Precip.
0%

01.01
thu

Day

55°F

S 11 mph

Precip.
0%

Night

59°F

NE 2 mph

Precip.
0%

02.01
fri

Day

61°F

NW 3 mph

Precip.
0%

Night

61°F

NW 8 mph

Precip.
0%

03.01
sat

Day

61°F

W 9 mph

Precip.
0%

Night

61°F

NW 10 mph

Precip.
0%

sea water
temperature

Galveston Island

monthly
weather

Galveston Island

current
weather

Galveston Island

7 days
forecast

Galveston Island

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2025

2024

2023

The average sea water temperature in December of 2025 was 63.4°F. The highest and lowest sea temperatures during the month were 69.4°F and 59.7°F.

Show year:

2025

2024

2023

The average sea water temperature in January of 2025 was 56.9°F. The highest and lowest sea temperatures during the month were 66.0°F and 49.5°F.