World Resorts USA Grand Marais Weather

Grand Marais Sea Temperature in May

Average sea water temperature in May:
+36.5°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:
2025
2024
2023

The average sea water temperature in May of 2025 was 36.5°F. The highest and lowest sea temperatures during the month were 40.1°F and 33.8°F.

Monthly sea water temperature in Grand Marais, °F

Which USA resorts have warmest sea in May?

Place name May 2025 May 2024
Everglades 84.5°F 84.6°F
Islamorada 83.6°F 84.4°F
Key West 83.5°F 84.6°F
Naples 83.5°F 83.8°F
Marco Island 83.5°F 84.0°F
Key Largo 83.5°F 84.1°F
Sanibel Island 83.1°F 83.2°F
Tampa 82.7°F 82.5°F
Sarasota 82.7°F 82.9°F
St. Petersburg 82.6°F 82.4°F
Clearwater Beach 82.6°F 82.5°F
Miami 82.6°F 83.3°F
Siesta Key 82.5°F 82.6°F
Miami Beach 82.4°F 83.0°F
Fort Lauderdale 81.1°F 81.7°F
West Palm Beach 81.1°F 81.5°F
Corpus Christi 80.9°F 81.0°F
Pensacola 80.1°F 79.4°F
South Padre Island 80.0°F 81.1°F
Pass Christian 79.8°F 79.8°F

Best time for vacation in Grand Marais

Sunniest months:
September 14 days
August 13 days
July 12 days
Warmest months:
August 68.1 °F
July 67.1 °F
September 62.2 °F
Warmest sea temp:
August 60.2 °F
September 59.1 °F
October 52.8 °F
Coldest months:
February 18.9 °F
January 19.4 °F
December 24.9 °F
Rainiest months:
August 3 days
April 2 days
July 2 days
Windiest months:
November 10.0 mph
December 9.9 mph
April 9.6 mph

Grand Marais on a weather map

Grand Marais
+16°F
S 8 mph
Feels like: +7°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+66°F
+70°F
+70°F
+70°F
+70°F
+30°F
+79°F
+52°F
+59°F
+57°F
+55°F
+25°F
24 Hours Forecast
Grand Marais
Local time: 17:25
December 30, tuesday
1800
16°F
S
8 mph
2100
14°F
S
9 mph
December 31, wednesday
0000
10°F
SE
11 mph
0300
7°F
SE
11 mph
0600
3°F
SE
13 mph
0900
1°F
SE
16 mph
1200
5°F
SE
16 mph
1500
7°F
SE
15 mph
Units of measurement: °C / °F