World Resorts USA Grand Isle Weather

Grand Isle Sea Temperature in September

Average sea water temperature in September:
+84.7°F
Minimum sea water temperature in September: 88.9°F
Maximum sea water temperature in September: 77.2°F

Daily sea water temperature in September, °F

Show year:
2023
2022
2021

The average sea water temperature in September of 2023 was 86.5°F. The highest and lowest sea temperatures during the month were 88.9°F and 83.3°F.

Monthly sea water temperature in Grand Isle, °F

Which USA resorts have warmest sea in September?

Place name September 2023 September 2022
Key West 87.3°F 87.3°F
Corpus Christi 87.1°F 85.4°F
Naples 86.8°F 87.3°F
Marco Island 86.7°F 87.2°F
Galveston Island 86.6°F 85.2°F
Galveston 86.5°F 85.1°F
Miami Beach 86.3°F 86.7°F
South Padre Island 86.3°F 84.9°F
Fort Lauderdale 86.2°F 86.4°F
West Palm Beach 86.2°F 86.3°F
Houston 86.1°F 84.5°F
Cape Coral 86.0°F 86.1°F
Miami 86.0°F 86.5°F
Siesta Key 85.8°F 86.3°F
Sarasota 85.8°F 86.1°F
Gulf Shores 85.5°F 84.9°F
Tampa 85.5°F 85.4°F
Clearwater Beach 85.5°F 85.3°F
Orange Beach 85.4°F 84.8°F
St. Petersburg 85.3°F 85.6°F

Best time for vacation in Grand Isle

Sunniest months:
October 15 days
November 13 days
May 13 days
Warmest months:
August 85.6 °F
July 85.1 °F
June 83.6 °F
Warmest sea temp:
August 87.7 °F
July 86.8 °F
September 84.7 °F
Coldest months:
January 59.6 °F
February 61.3 °F
December 63.2 °F
Rainiest months:
July 6 days
June 5 days
August 5 days
Windiest months:
April 13.0 mph
January 12.8 mph
March 12.8 mph

Grand Isle on a weather map

Grand Isle
+77°F
NW 11 mph
Feels like: +81°F
Precip.: 0%
Places in USA:
Name
°F
+59°F
+66°F
+73°F
+73°F
+68°F
+57°F
+84°F
+63°F
+81°F
+59°F
+52°F
+82°F
+81°F
+81°F
+66°F
24 Hours Forecast
Grand Isle
Local time: 08:21
May 20, monday
0900
77°F
NW
11 mph
1200
79°F
NW
11 mph
1500
79°F
NW
12 mph
1800
79°F
NW
12 mph
2100
79°F
NW
12 mph
May 21, tuesday
0000
77°F
NW
12 mph
0300
77°F
NW
12 mph
0600
77°F
NW
12 mph
Units of measurement: °C / °F