Measurements:
°C
°F
Grand Marais
40°F
SW 8 mph
Feels like: 36°F
Precip: 0%
World Resorts USA Grand Marais Weather March Weather in Grand Marais

Grand Marais Weather: March

Average Day Temperature: 28.7°F
Average Night Temperature: 20.8°F
Sea Water Temperature: 32.3°F
Number of Sunny Days: 6 days
Sunshine Hours: 11.1 - 12.8 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.7 in
Number of Snowy Days: 1 day

Air Temperature in March, °F

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
-12
-3
6
15
24
33
42
51
60
Day Temperature   
Night Temperature

The highest day temperature in March 2025 was 45°F. The lowest night temperature was -3°F. The average values for day and night temperatures during March were 31.0°F и 20.7°F respectivly.

Grand Marais Water Sea Temperature in March, °F

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
26
28
30
32
34
36
38
40

The average sea surface temperature in March 2025 for Grand Marais was 31.6°F. The maximum and minimum values were 30.0°F and 32.4°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
19%
29%
52%

Most of the days in March are gloomy but you can also expect sunny days.

Precipitation Totals in March, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.3
0.5
0.8
1.0
1.3
1.6
1.8

Precipitation total in March for Grand Marais is 0.7 in. It makes march one of the least rainy months of the year.

Wind Speed in March, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.7
3.4
5.1
6.8
8.5
10.2
11.9
13.6

The average wind speed in March is 9.5 mph.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.6
3.2
4.8
6.4
8.0
9.6
11.2

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Grand Marais in March is 4.9 hours.

Best Time to Visit Grand Marais
The most sunny months:
September 15 days
August 14 days
July 13 days
The most warm months:
August 70.2 °F
July 68.9 °F
September 64.0 °F
Warmest sea temperature:
August 61.1 °F
September 60.3 °F
October 52.8 °F
The most cold months:
February 15.4 °F
January 16.0 °F
December 23.2 °F
The most rainy months:
August 4 days
April 2 days
July 2 days
The most windy months:
April 9 mph
November 9 mph
December 9 mph

Grand Marais on the Weather Map

USA Resorts:
NAME
Boston +50
Chicago +58
Hawaii +78
Honolulu +78
Houston +74
Las Vegas +72
Los Angeles +58
Miami +78
New York +54
Orlando +76
San Diego +62
San Francisco +54
Sarasota +78
Tampa +84
Washington +58
24 Hours Weather Forecast
Grand Marais
Local time: 19:53
17 apr, thursday
2100 40°F
SW
8 mph
18 apr, friday
0000 38°F
SW
8 mph
0300 40°F
SE
9 mph
0600 36°F
S
10 mph
0900 38°F
S
11 mph
1200 42°F
S
9 mph
1500 42°F
SE
6 mph
1800 40°F
S
7 mph