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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 - 13th October 2026

Sunrise 07:20

Sunrise

Sunset 18:54

Sunset
0:00
Overcast
26°C (78°F)
1:00
Patchy rain possible
26°C (78°F)
2:00
Patchy rain possible
26°C (78°F)
3:00
Overcast
27°C (80°F)
4:00
Overcast
28°C (81°F)
5:00
Patchy rain possible
28°C (82°F)
6:00
Patchy rain possible
27°C (80°F)
7:00
Patchy rain possible
26°C (78°F)
8:00
Clear
27°C (79°F)
9:00
Patchy rain possible
29°C (83°F)
10:00
Patchy rain possible
30°C (85°F)
11:00
Patchy rain possible
31°C (86°F)
12:00
Patchy rain possible
31°C (87°F)
13:00
Patchy rain possible
32°C (88°F)
14:00
Light rain shower
32°C (88°F)
15:00
Patchy rain possible
31°C (87°F)
16:00
Patchy rain possible
31°C (87°F)
17:00
Patchy rain possible
30°C (85°F)
18:00
Patchy rain possible
29°C (84°F)
19:00
Patchy rain possible
28°C (81°F)
20:00
Patchy rain possible
27°C (80°F)
21:00
Overcast
27°C (80°F)
22:00
Cloudy
27°C (80°F)
23:00
Clear
27°C (80°F)
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