Average sea water temperature in August:
+60.1°F
| Minimum sea water temperature in August: | 66.0°F |
| Maximum sea water temperature in August: | 44.1°F |
Daily sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 61.3°F. The highest and lowest sea temperatures during the month were 65.7°F and 55.9°F.
sea water
temperature
temperature
| Grand Marais |
monthly
weather
weather
| Grand Marais |
current
weather
weather
| Grand Marais |
14 days
forecast
forecast
| Grand Marais |
Monthly sea water temperature in Grand Marais, °F
Which USA resorts have warmest sea in August?
| Place name | August 2025 | August 2024 |
|---|---|---|
| Sanibel Island | 88.8°F | 87.3°F |
| Everglades | 88.8°F | 87.0°F |
| Islamorada | 88.8°F | 87.3°F |
| Key West | 88.8°F | 87.8°F |
| Key Largo | 88.7°F | 87.3°F |
| Marco Island | 88.7°F | 87.1°F |
| Naples | 88.7°F | 87.0°F |
| St. Petersburg | 88.7°F | 86.9°F |
| Tampa | 88.6°F | 86.4°F |
| Sarasota | 88.6°F | 87.2°F |
| Siesta Key | 88.6°F | 87.3°F |
| Clearwater Beach | 88.5°F | 87.0°F |
| Miami | 88.1°F | 86.4°F |
| Miami Beach | 87.9°F | 86.5°F |
| Galveston | 87.9°F | 88.3°F |
| Galveston Island | 87.8°F | 88.5°F |
| Houston | 87.8°F | 88.0°F |
| New Orleans | 87.4°F | 88.1°F |
| Fort Lauderdale | 87.2°F | 85.8°F |
| Corpus Christi | 87.0°F | 87.9°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: 17:25
December 30, tuesday
1800
16°F
S
8 mph
8 mph
2100
14°F
S
9 mph
9 mph
December 31, wednesday
0000
10°F
SE
11 mph
11 mph
0300
7°F
SE
11 mph
11 mph
0600
3°F
SE
13 mph
13 mph
0900
1°F
SE
16 mph
16 mph
1200
5°F
SE
16 mph
16 mph
1500
7°F
SE
15 mph
15 mph
