Climate

Galveston weather by month

Average highs, lows, rain and snow for every month, from 30 years of weather records.

Average temperatures

Best time to visit: February, March, April, when highs are mild and rain is lightest.

Month	High	Low	Rain	Wet days
January	63°F	49°F	4.3 in	9
February	66°F	52°F	2.1 in	8
March	72°F	58°F	3.0 in	7
April	78°F	65°F	2.1 in	6
May	84°F	72°F	3.0 in	5
June	90°F	78°F	4.2 in	9
July	91°F	80°F	3.4 in	9
August	92°F	80°F	4.7 in	8
September	89°F	76°F	6.7 in	10
October	82°F	69°F	5.2 in	7
November	72°F	59°F	4.3 in	8
December	66°F	52°F	4.2 in	10

NOAA U.S. Climate Normals 1991–2020, Galveston Scholes Fld, Tx Us (4.3 mi away, 5 ft). Wet days: days with at least 0.01 in of precipitation.

What is the hottest month in Galveston?

August, with an average high of 92°F and low of 80°F.

What is the coldest month in Galveston?

January, with an average low of 49°F and high of 63°F.

When does it rain most in Galveston?

September is the wettest month, averaging 6.7 in of precipitation; the year totals about 47.2 inches.

What is the best time to visit Galveston?

For mild weather (highs between 65°F and 85°F) with the least rain, February, March, April.

Where do these numbers come from?

NOAA’s 1991–2020 U.S. Climate Normals for the Galveston Scholes Fld weather station, 4.3 miles from downtown: 30-year averages, not a forecast.