World Resorts USA Galveston Weather

Galveston Sea Temperature in September

Average sea water temperature in September:
+85.2°F
Minimum sea water temperature in September: 88.5°F
Maximum sea water temperature in September: 79.3°F

Daily sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 87.0°F. The highest and lowest sea temperatures during the month were 88.5°F and 85.1°F.

Monthly sea water temperature in Galveston, °F

Which USA resorts have warmest sea in September?

Place name September 2026 September 2025
Key West 87.8°F 86.9°F
Naples 87.0°F 86.1°F
Galveston 87.0°F 85.5°F
Siesta Key 86.9°F 84.9°F
Houston 86.9°F 84.9°F
Corpus Christi 86.8°F 85.8°F
Sarasota 86.8°F 84.8°F
West Palm Beach 86.6°F 86.2°F
Fort Lauderdale 86.6°F 86.4°F
New Orleans 86.4°F 84.3°F
Gulf Shores 86.1°F 84.3°F
Orange Beach 86.0°F 84.0°F
Pensacola Beach 85.9°F 83.9°F
Tampa 85.9°F 84.3°F
Clearwater Beach 85.9°F 84.0°F
Miami Beach 85.8°F 86.1°F
Panama City Beach 85.8°F 83.4°F
Fort Walton Beach 85.7°F 83.3°F
Pensacola 85.7°F 83.9°F
Destin 85.6°F 83.1°F

Best time for vacation in Galveston

Sunniest months:
October 16 days
August 15 days
November 14 days
Warmest months:
August 89.4 °F
July 88.6 °F
June 87.4 °F
Warmest sea temp:
August 87.4 °F
July 86.0 °F
September 85.2 °F
Coldest months:
January 58.6 °F
February 60.6 °F
December 63.4 °F
Rainiest months:
November 3 days
July 3 days
May 3 days
Windiest months:
April 12.3 mph
January 11.5 mph
May 11.2 mph

Galveston on a weather map

Galveston
+77°F
N 11 mph
Feels like: +82°F
Precip.: 19%
Places in USA:
Name
°F
+54°F
+52°F
+77°F
+54°F
+66°F
+81°F
+66°F
+54°F
+68°F
+59°F
+66°F
+70°F
+72°F
+73°F
+63°F
24 Hours Forecast
Galveston
Local time: 05:08
November 03, tuesday
0600
77°F
N
11 mph
0900
77°F
N
11 mph
1200
77°F
NE
13 mph
1500
77°F
NE
12 mph
1800
77°F
SE
11 mph
2100
73°F
SE
10 mph
November 04, wednesday
0000
73°F
S
14 mph
0300
72°F
S
14 mph
Units of measurement: °C / °F