Measurements:
°C
°F
Galveston Island
80°F
N 19 mph
Feels like: 86°F
Precip: 0%
World Resorts USA Galveston Island Weather September Weather in Galveston Island

Galveston Island Weather: September

Average Day Temperature: 89.5°F
Average Night Temperature: 80.7°F
Sea Water Temperature: 88.9°F
Number of Sunny Days: 13 days
Sunshine Hours: 11.9 - 12.7 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.7 in

Air Temperature in September, °F

Select Year: 2024 2023 2022

The highest day temperature in September 2024 was 91°F. The lowest night temperature was 77°F. The average values for day and night temperatures during September were 86.5°F и 83.0°F respectivly.

Galveston Island Water Sea Temperature in September, °F

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Galveston Island was 88.2°F. The maximum and minimum values were 83.6°F and 91.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Galveston Island is 1.7 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 8.4 mph. It makes September one of the most windless months of the year for Galveston Island.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Galveston Island in September is 7.7 hours.

Best Time to Visit Galveston Island
The most sunny months:
October 16 days
June 14 days
September 13 days
The most warm months:
August 93.9 °F
July 92.9 °F
June 92.2 °F
Warmest sea temperature:
August 91.6 °F
July 90.1 °F
September 88.9 °F
The most cold months:
January 61.0 °F
February 61.8 °F
December 65.6 °F
The most rainy months:
May 4 days
July 4 days
November 4 days
The most windy months:
April 11 mph
May 11 mph
March 11 mph

Galveston Island on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +64
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +44
Los Angeles +62
Maui +74
Miami +84
New York +62
San Diego +52
San Francisco +56
Sarasota +76
Tampa +78
Washington +62
24 Hours Weather Forecast
Galveston Island
Local time: 08:44
05 nov, tuesday
0900 80°F
N
19 mph
1200 80°F
NE
14 mph
1500 72°F
SE
5 mph
1800 70°F
S
4 mph
2100 70°F
S
9 mph
06 nov, wednesday
0000 72°F
S
11 mph
0300 72°F
S
11 mph
0600 70°F
S
11 mph