World Resorts USA Galveston Island Weather

Galveston Island weather in May

Weather in Galveston Island: May

Average day temperature: 81.9°F
Average night temperature: 74.0°F
Sea water temperature: 78.9°F
Number of sunny days: 9 days
Day length: 13.3 - 13.9 hours
Number of rainy days: 4 days
Precipitation totals: 2.0 in.

Air temperature in May, °F

Show year:
2024
2023
2022

The highest day temperature during May of 2024 was 84°F. At the same time the lowest night temperature was 74°F. Day and night temperature averages during May were 79.2°F and 77.8°F.

Sea water temperature in Galveston Island in May, °F

Show year:
2024
2023
2022

The average sea water temperature in May of 2024 was 79.9°F. The highest and lowest sea temperatures during the month were 84.0°F and 75.0°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in May is almost equal.

Precipitation total in May, in.

Precipitation total value in Galveston Island in May is 2.0 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 11.0 mph It makes May one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.5.

Best time for vacation in Galveston Island

Sunniest months:
October 16 days
June 14 days
September 13 days
Warmest months:
August 89.5 °F
July 88.7 °F
June 88.0 °F
Warmest sea temp:
August 87.5 °F
July 86.1 °F
September 85.0 °F
Coldest months:
January 59.9 °F
February 60.6 °F
December 64.1 °F
Rainiest months:
May 4 days
July 4 days
January 4 days
Windiest months:
April 11.7 mph
May 11.0 mph
March 10.6 mph

Galveston Island on a weather map

Galveston Island
+57°F
W 12 mph
Feels like: +54°F
Precip.: 0%
Places in USA:
Name
°F
+23°F
+28°F
+77°F
+77°F
+61°F
+59°F
+68°F
+25°F
+55°F
+57°F
+55°F
+55°F
+54°F
+54°F
+23°F
24 Hours Forecast
Galveston Island
Local time: 19:49
December 21, saturday
2100
57°F
W
12 mph
December 22, sunday
0000
55°F
W
14 mph
0300
54°F
W
14 mph
0600
54°F
W
12 mph
0900
55°F
W
12 mph
1200
55°F
W
12 mph
1500
57°F
NW
13 mph
1800
57°F
NW
12 mph
Units of measurement: °C / °F