World Resorts USA Duluth Weather

Duluth weather in April

Weather in Duluth: April

Average day temperature: 41.6°F
Average night temperature: 33.0°F
Sea water temperature: 36.5°F
Number of sunny days: 5 days
Day length: 12.9 - 14.4 hours
Number of rainy days: 2 days
Precipitation totals: 1.1 in.

Air temperature in April, °F

Show year:
2026
2025
2024

The highest day temperature during April of 2026 was 52°F. At the same time the lowest night temperature was 21°F. Daily and nightly averages during April were 40.5°F and 35.7°F.

Sea water temperature in Duluth in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 34.6°F. The highest and lowest sea temperatures during the month were 36.5°F and 32.5°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in April, in.

Precipitation total value in Duluth in April is 1.1 in. Other months of the year show relatively similar values.

Wind speed in April, mph

The average wind speed value in April is 8.8 mph It makes April most windy month 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 April is: 5.1.

Best time for vacation in Duluth

Sunniest months:
September 14 days
August 13 days
July 12 days
Warmest months:
July 74.7 °F
August 73.8 °F
June 68.5 °F
Warmest sea temp:
August 65.9 °F
July 63.8 °F
September 62.4 °F
Coldest months:
January 17.9 °F
February 20.0 °F
December 24.2 °F
Rainiest months:
June 3 days
August 3 days
July 3 days
Windiest months:
April 8.8 mph
March 8.4 mph
November 8.3 mph

Duluth on a weather map

Duluth
+39°F
E 4 mph
Feels like: +30°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+73°F
+73°F
+57°F
+52°F
+79°F
+79°F
+66°F
+54°F
+54°F
+50°F
+77°F
+75°F
+75°F
+52°F
24 Hours Forecast
Duluth
Local time: 07:13
April 29, wednesday
0900
41°F
SE
6 mph
1200
43°F
SE
9 mph
1500
45°F
SE
11 mph
1800
46°F
SE
9 mph
2100
37°F
S
6 mph
April 30, thursday
0000
32°F
S
6 mph
0300
30°F
SE
4 mph
0600
32°F
SE
4 mph
Units of measurement: °C / °F