World Resorts USA Grand Marais Weather

Grand Marais weather in December

Weather in Grand Marais: December

Average day temperature: 25.9°F
Average night temperature: 22.2°F
Sea water temperature: 39.5°F
Number of sunny days: 5 days
Day length: 8.4 - 8.7 hours
Number of rainy days: 1 day
Precipitation totals: 0.7 in.

Air temperature in December, °F

Show year:
2024
2023
2022

The highest day temperature during December of 2024 was 36°F. At the same time the lowest night temperature was -4°F. Daily and nightly averages during December were 25.0°F and 21.2°F.

Sea water temperature in Grand Marais in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2024 was 40.6°F. The highest and lowest sea temperatures during the month were 43.9°F and 38.3°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Grand Marais in December is 0.7 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 9.8 mph It makes December one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 2.8.

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 25.9 °F
Rainiest months:
August 3 days
April 2 days
July 2 days
Windiest months:
November 10.0 mph
December 9.8 mph
April 9.6 mph

Grand Marais on a weather map

Grand Marais
+34°F
NE 5 mph
Feels like: +28°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+75°F
+75°F
+61°F
+61°F
+79°F
+77°F
+70°F
+43°F
+66°F
+57°F
+82°F
+82°F
+75°F
+48°F
24 Hours Forecast
Grand Marais
Local time: 15:10
December 24, wednesday
1800
30°F
SE
4 mph
2100
28°F
S
7 mph
December 25, thursday
0000
21°F
S
7 mph
0300
18°F
S
7 mph
0600
16°F
SW
6 mph
0900
16°F
SW
9 mph
1200
18°F
W
9 mph
1500
19°F
W
12 mph
Units of measurement: °C / °F