Current Sea Water Temperature:
+38.8°F
| Maximum Sea Water Temperature in December: | 43.2°F |
| Minimum Sea Water Temperature in December: | 36.2°F |
| Average water temperature in December: | 38.5°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| December 22 | 38.8°F | December 17 | 39.4°F |
| December 21 | 38.6°F | December 16 | 39.6°F |
| December 20 | 39.0°F | December 15 | 39.8°F |
| December 19 | 39.2°F | December 14 | 38.8°F |
| December 18 | 39.2°F | December 13 | 39.2°F |
When is the Warmest Sea for Grand Marais?
According to our data for the last three years for Grand Marais the highest average sea water temperature was in August, September and October.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2024 for Grand Marais was 63.7°F. The maximum and minimum values were 57.4°F and 67.8°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2024 for Grand Marais was 65.2°F. The maximum and minimum values were 62.8°F and 68.2°F respectively.
Sea Water Temperature in October
The average sea surface temperature in October 2024 for Grand Marais was 51.0°F. The maximum and minimum values were 44.4°F and 65.4°F respectively.
USA Resorts:
NAME
F°
| Boston |  |
+10 |
| Chicago | |
+20 |
| Hawaii |  |
+78 |
| Honolulu | |
+78 |
| Houston | |
+46 |
| Las Vegas | |
+50 |
| Los Angeles | |
+54 |
| Miami | |
+62 |
| New York | |
+16 |
| Orlando | |
+50 |
| San Diego | |
+54 |
| San Francisco | |
+54 |
| Sarasota | |
+48 |
| Tampa | |
+46 |
| Washington |  |
+20 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Grand Marais
Local time: 04:00
22 dec, sunday
| 0600 |  |
18°F | N 13 mph |
| 0900 | |
20°F | N 14 mph |
| 1200 | |
24°F | N 13 mph |
| 1500 | |
24°F | N 11 mph |
| 1800 | |
22°F | N 11 mph |
| 2100 | |
24°F | NE 11 mph |
23 dec, monday
| 0000 | |
24°F | NE 9 mph |
| 0300 | |
22°F | E 2 mph |