Average sea water temperature in May:
+36.3°F
| Minimum sea water temperature in May: | 40.1°F |
| Maximum sea water temperature in May: | 32.7°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 35.4°F. The highest and lowest sea temperatures during the month were 39.4°F and 33.8°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 May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Everglades | 84.6°F | 84.5°F |
| Key West | 84.3°F | 83.5°F |
| Key Largo | 84.0°F | 83.5°F |
| Miami | 83.3°F | 82.6°F |
| Cape Coral | 83.3°F | 83.4°F |
| Marco Island | 83.2°F | 83.5°F |
| Hialeah | 82.9°F | 82.3°F |
| Naples | 82.9°F | 83.5°F |
| Miami Beach | 82.7°F | 82.4°F |
| St. Petersburg | 82.0°F | 82.6°F |
| Tampa | 81.9°F | 82.7°F |
| West Palm Beach | 81.7°F | 81.1°F |
| Fort Lauderdale | 81.7°F | 81.1°F |
| Clearwater Beach | 81.5°F | 82.6°F |
| Sarasota | 81.5°F | 82.7°F |
| Siesta Key | 81.3°F | 82.5°F |
| Cocoa Beach | 80.4°F | 79.4°F |
| Corpus Christi | 79.5°F | 80.9°F |
| Galveston | 78.4°F | 79.6°F |
| Orlando | 78.4°F | 77.2°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: 15:24
June 08, monday
1800
61°F
W
4 mph
4 mph
2100
57°F
W
4 mph
4 mph
June 09, tuesday
0000
55°F
SW
4 mph
4 mph
0300
55°F
SW
5 mph
5 mph
0600
55°F
SW
5 mph
5 mph
0900
55°F
W
6 mph
6 mph
1200
57°F
W
7 mph
7 mph
1500
59°F
W
7 mph
7 mph
