Average sea water temperature in October:
+52.8°F
| Minimum sea water temperature in October: | 63.9°F |
| Maximum sea water temperature in October: | 45.0°F |
Daily sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 53.8°F. The highest and lowest sea temperatures during the month were 60.3°F and 49.6°F.
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| Grand Marais |
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| Grand Marais |
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| Grand Marais |
Monthly sea water temperature in Grand Marais, °F
Which USA resorts have warmest sea in October?
| Place name | October 2025 | October 2024 |
|---|---|---|
| Key West | 83.8°F | 82.9°F |
| Fort Lauderdale | 83.5°F | 83.0°F |
| Miami Beach | 83.4°F | 83.4°F |
| Miami | 82.7°F | 82.9°F |
| Corpus Christi | 82.2°F | 80.6°F |
| Naples | 81.9°F | 81.6°F |
| Kauai | 81.3°F | 79.2°F |
| Honolulu | 80.7°F | 80.6°F |
| Hawaii | 80.6°F | 80.5°F |
| Molokai | 80.5°F | 80.1°F |
| Siesta Key | 80.4°F | 80.7°F |
| Houston | 80.4°F | 78.8°F |
| Hilo | 80.3°F | 79.7°F |
| Sarasota | 80.2°F | 80.5°F |
| Maui | 79.8°F | 79.4°F |
| Oahu | 79.8°F | 80.2°F |
| St. Petersburg | 79.4°F | 79.0°F |
| Tampa | 79.4°F | 79.3°F |
| Panama City Beach | 79.2°F | 78.9°F |
| Cocoa Beach | 79.2°F | 79.9°F |
Best time for vacation in Grand Marais
Grand Marais on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Grand Marais
Local time: 19:25
June 29, monday
2100
64°F
W
11 mph
11 mph
June 30, tuesday
0000
68°F
SW
6 mph
6 mph
0300
66°F
W
4 mph
4 mph
0600
61°F
NE
2 mph
2 mph
0900
64°F
NE
5 mph
5 mph
1200
68°F
NE
6 mph
6 mph
1500
70°F
N
6 mph
6 mph
1800
70°F
NE
9 mph
9 mph
