World Resorts USA Grand Marais Weather

Grand Marais weather in March

Weather in Grand Marais: March

Average day temperature: 30.8°F
Average night temperature: 23.7°F
Sea water temperature: 34.1°F
Number of sunny days: 6 days
Day length: 11.1 - 12.8 hours
Number of days with precipitation: 1 day
Precipitation totals: 0.7 in.

Air temperature in March, °F

Show year:
2025
2024
2023

The highest day temperature during March of 2025 was 45°F. At the same time the lowest night temperature was 2°F. Daily and nightly averages during March were 32.9°F and 23.6°F.

Sea water temperature in Grand Marais in March, °F

Show year:
2025
2024
2023

The average sea water temperature in March of 2025 was 33.4°F. The highest and lowest sea temperatures during the month were 34.2°F and 32.0°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in March, in.

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

Wind speed in March, mph

The average wind speed value in March is 9.5 mph

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 March is: 4.9.

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
+16°F
E 16 mph
Feels like: +1°F
Precip.: 100%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
Grand Marais
Local time: 23:34
December 05, friday
0000
16°F
E
16 mph
0300
18°F
E
9 mph
0600
19°F
E
6 mph
0900
14°F
SE
5 mph
1200
21°F
NE
7 mph
1500
23°F
NE
9 mph
1800
21°F
E
10 mph
2100
18°F
SE
14 mph
Units of measurement: °C / °F