Which is the hottest month in Duluth?

The hottest time of year in Duluth is normally July. Expect maximum daytime temperatures to reach 26°C with no heat and humidity.

Which month has the most rain in Duluth?

In terms of rainfall, August is usually the wettest month in Duluth with 100mm on average. There are normally 11 days in August with some rain.

When is it sunniest in Duluth?

The sunniest time of year in Duluth is normally July with bright sunshine on average for 66% of daylight hours; that's 10 hours of sunshine per day.

When is the sea warmest in Duluth?

The sea is usually at its warmest in Duluth in August when the water temperature reaches 16°C.

Best time to visit Duluth

Q: When is the best time to visit Duluth?

The best time to visit Duluth is July based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Duluth by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Duluth?

The best time to visit Duluth is July based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0.5
Jan
1
Feb
1.5
Mar
2
Apr
3
May
4.5
Jun
5
Jul
4.5
Aug
2.5
Sep
1
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

-7
Jan
-4
Feb
2
Mar
10
Apr
17
May
22
Jun
26
Jul
24
Aug
19
Sep
13
Oct
3
Nov
-5
Dec

Hours of Sunshine (daily)

4
Jan
5
Feb
6
Mar
8
Apr
9
May
9
Jun
10
Jul
9
Aug
7
Sep
5
Oct
3
Nov
3
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Minnesota (Duluth) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)