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View the weekly forecast and typical seasonal weather conditions in Galveston, TX to get a general understanding of weather conditions to expect during your next trip.
Looking to get a feel for what the weather will be like during your visit? With low chances of rain and temperatures that usually range anywhere from the 60s in the winter to 90s in the summer, chances are good the weather will be excellent no matter when you’re planning on coming to see us.
- Beach Conditions
- Air Temperature
- Water Temperature
- Precipitation
- Humidity
Saturday, Jul 27
H: 82° L: 75°
Thunderstorm with heavy rain
Sunday, Jul 28
H: 85° L: 79°
Thunderstorm with rain
Monday, Jul 29
H: 86° L: 81°
Scattered clouds
Tuesday, Jul 30
H: 86° L: 81°
Few clouds
Wednesday, Jul 31
H: 86° L: 80°
Few clouds
Thursday, Aug 01
H: 86° L: 79°
Few clouds
Friday, Aug 02
H: 90° L: 77°
Scattered clouds
Saturday, Aug 03
H: 91° L: 75°
Few clouds
Sunday, Aug 04
H: 90° L: 77°
Scattered clouds
Monday, Aug 05
H: 89° L: 77°
Few clouds
Tuesday, Aug 06
H: 89° L: 78°
Scattered clouds
Wednesday, Aug 07
H: 89° L: 73°
Thunderstorm with rain
Friday, Aug 09
H: 90° L: 74°
Few clouds
Saturday, Aug 10
H: 89° L: 73°
Few clouds
Sunday, Aug 11
H: 90° L: 74°
Clear Sky
Flag Warning System
The Flag Warning System is used to advise beach patrons of the current water conditions and any applicable environmental warnings. The flag colors are part of a national system employed to help beach-goers understand the current conditions in the always dynamic environment of open water.
Green Flag
Indicates that conditions are calm. Swim with care.
Yellow Flag
Indicates caution should be used when entering any body of water. This flag is flown for normal conditions to remind swimmers to stay alert.
Red Flag
Flown when conditions are determined to be out of the ordinary, such as presence of strong wind, strong current or large surf. Adult swimmers should stay in water no more than waist deep and non-swimmers and children should be kept along the surf line.
Purple Flag
Indicates a potential problem with jellyfish, Portuguese man-o-war, stingrays or other marine life that could be a hazard for swimmers. Purple flags will be used in combination with other flags.
Orange Flag
Indicates there is an environmental warning for air and/or water quality. Ask the Lifeguard for more details. Orange pennant flags will be used in combination with other flags.
Average Air Temperatures in Galveston, TX
Not sure how to pack for your visit to Galveston? Get an idea of the average temperatures depending on the season.
Spring (March - May)
High 75° F / Low 65° F
Summer (June - August)
High 85° F / Low 79° F
Fall (September - November)
High 78° F / Low 67° F
Winter (December - February)
High 62° F / Low 50° F
Average Water Temperatures in Galveston, TX
According to the World Health Organization, water temperatures between 78 and 86 ° F are generally comfortable and safe for swimming. Usually, by the end of March, sea temperatures are warm enough for swimming.
Spring (March - May)
Average Water Temperature: 71.6° F
Summer (June - August)
Average Water Temperature: 84.2° F
Fall (September - November)
Average Water Temperature: 77° F
Winter (December - February)
Average Water Temperature: 60.8° F
Average Precipitation in Galveston, TX
Sun lovers will find plenty of golden rays in Galveston. Our overall low chances of rain mean the odds are good that you’ll find the perfect weather for your island getaway. May and October are typically our driest months, followed by June.
Spring (March - May)
Average Precipitation: 17%
Summer (June - August)
Average Precipitation: 20%
Fall (September - November)
Average Precipitation: 18%
Winter (December - February)
Average Precipitation: 19%
Average Humidity in Galveston, TX
Our ocean breeze keeps Galveston comfortable year-round. Our least humid month is typically October, while our most humid month is December.
Spring (March - May)
Average Humidity: 72%
Summer (June - August)
Average Humidity: 69%
Fall (September - November)
Average Humidity: 65%
Winter (December - February)
Average Humidity: 75%
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