Measurements:
°C
°F
CURRENT WEATHER
13:15
Duluth
44°F
W 7 mph
Feels like: 40°F
Precip: 0%
World Resorts USA Duluth Weather

7 Day Weather Forecast

04.23
thu
DAY
44°F
W 7 mph
precip
0%
NIGHT
44°F
W 6 mph
precip
100%
04.24
fri
DAY
52°F
SE 12 mph
precip
0%
NIGHT
38°F
S 5 mph
precip
0%
04.25
sat
DAY
50°F
W 2 mph
precip
0%
NIGHT
40°F
W 6 mph
precip
100%
04.26
sun
DAY
46°F
SW 4 mph
precip
0%
NIGHT
36°F
SW 9 mph
precip
0%
04.27
mon
DAY
38°F
SW 22 mph
precip
64%
NIGHT
40°F
SW 25 mph
precip
100%
04.28
tue
DAY
40°F
NE 20 mph
precip
100%
NIGHT
34°F
E 17 mph
precip
100%
04.29
wed
DAY
36°F
SE 13 mph
precip
69%
NIGHT
34°F
SE 14 mph
precip
80%

Duluth Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Duluth was 1.3°F. The maximum and minimum values were 0.3°F and 2.4°F respectively.

Duluth on the Weather Map

Best Time to Visit Duluth
The most sunny months:
September 14 days
August 13 days
July 12 days
The most warm months:
July 77.4 °F
August 76.5 °F
June 70.6 °F
Warmest sea temperature:
August 67.6 °F
July 65.4 °F
September 63.7 °F
The most cold months:
January 14.4 °F
February 16.7 °F
December 21.4 °F
The most rainy months:
June 3 days
August 3 days
July 3 days
The most windy months:
April 9 mph
March 8 mph
November 8 mph
more details