Measurements:
°C
°F
Duluth
28°F
SE 5 mph
Feels like: 18°F
Precip: 0%
World Resorts USA Duluth Weather

7 Day Weather Forecast

04.03
fri
DAY
32°F
W 11 mph
precip
0%
NIGHT
28°F
W 21 mph
precip
0%
04.04
sat
DAY
30°F
SW 12 mph
precip
0%
NIGHT
26°F
SE 12 mph
precip
0%
04.05
sun
DAY
36°F
E 8 mph
precip
0%
NIGHT
30°F
E 6 mph
precip
0%
04.06
mon
DAY
30°F
SE 12 mph
precip
100%
NIGHT
12°F
SE 5 mph
precip
0%
04.07
tue
DAY
26°F
NE 6 mph
precip
0%
NIGHT
28°F
N 9 mph
precip
0%
04.08
wed
DAY
40°F
N 17 mph
precip
0%
NIGHT
36°F
NE 4 mph
precip
0%
04.09
thu
DAY
34°F
SW 9 mph
precip
81%
NIGHT
34°F
SW 11 mph
precip
100%

Duluth Sea Water Temperature in April, °F

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for Duluth was 2.0°F. The maximum and minimum values were 1.1°F and 3.7°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