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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

Today - 14th July 2026

Sunrise 06:31

Sunrise

Sunset 20:22

Sunset
18:00
Partly cloudy
27°C (79°F)
19:00
Cloudy
26°C (78°F)
20:00
Partly cloudy
26°C (78°F)
21:00
Partly cloudy
26°C (77°F)
22:00
Partly cloudy
26°C (78°F)
23:00
Cloudy
26°C (77°F)

Tomorrow - 15th July 2026

Sunrise 06:31

Sunrise

Sunset 20:22

Sunset
0:00
Partly cloudy
26°C (77°F)
1:00
Patchy rain possible
26°C (77°F)
2:00
Light rain shower
25°C (77°F)
3:00
Light rain shower
25°C (76°F)
4:00
Light rain shower
25°C (77°F)
5:00
Light rain shower
25°C (77°F)
6:00
Light rain shower
25°C (76°F)
7:00
Patchy rain possible
25°C (76°F)
8:00
Partly cloudy
25°C (76°F)
9:00
Partly cloudy
24°C (75°F)
10:00
Patchy rain possible
25°C (77°F)
11:00
Patchy rain possible
27°C (79°F)
12:00
Partly cloudy
27°C (80°F)
13:00
Partly cloudy
27°C (81°F)
14:00
Cloudy
28°C (82°F)
15:00
Cloudy
29°C (84°F)
16:00
Light drizzle
30°C (84°F)
17:00
Light rain shower
29°C (83°F)