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Galveston, USA Weather Averages

. The most daily sunshine hours in Galveston are 12 in June. The best month to swim in the sea is in August when the average sea temperature is 30°C (86°F).

Average Daily Sunshine Hours Galveston

What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

Average Sea Temperature Galveston

What is Average Sea Temperature?
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface
What is Average Sea Temperature?
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

Galveston : Next 24-Hour Weather

Tomorrow - 28th August 2026

Sunrise 06:56

Sunrise

Sunset 19:47

Sunset
20:00
Light drizzle
27°C (80°F)
21:00
Light drizzle
26°C (79°F)
22:00
Light drizzle
26°C (78°F)
23:00
Light drizzle
26°C (78°F)

Tomorrow - 29th August 2026

Sunrise 06:56

Sunrise

Sunset 19:47

Sunset
0:00
Overcast
26°C (78°F)
1:00
Cloudy
26°C (78°F)
2:00
Partly cloudy
26°C (78°F)
3:00
Partly cloudy
26°C (77°F)
4:00
Clear
25°C (77°F)
5:00
Clear
25°C (77°F)
6:00
Clear
25°C (77°F)
7:00
Clear
25°C (77°F)
8:00
Clear
27°C (79°F)
9:00
Clear
29°C (83°F)
10:00
Clear
31°C (88°F)
11:00
Clear
33°C (91°F)
12:00
Clear
35°C (94°F)
13:00
Clear
35°C (94°F)
14:00
Clear
35°C (94°F)
15:00
Clear
35°C (94°F)
16:00
Clear
34°C (93°F)
17:00
Clear
33°C (91°F)
18:00
Clear
32°C (89°F)
19:00
Clear
31°C (87°F)
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