Duluth weather in July 2025

Expect 79°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Duluth in July. Check more long-term weather averages for Duluth in July before you book your next holiday to Minnesota in 2025/2026.

  • 79°F maximum daytime temperature in July in Duluth79
    79°F max day temperature
  • 10 hours of sunshine per day
  • 11 days with some rainfall in July in Duluth11
    11 days with some rainfall
  • 55°F minimum night-time temperature in July in Duluth55
    55°F min night temperature
  • 15 hours of daylight per day in July in Duluth15
    15 hours of daylight per day
  • No heat & humidity in July in Duluth0
    No heat & humidity
  • 3.7 inches monthly rainfall in July in Duluth3.7
    3.7 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Duluth8
    8 (Very High) UV index
  • 48°F sea temperature in July in Duluth48
    48°F sea temperature

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The July weather guide for Minnesota (Duluth) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about the USA

How hot is it in Duluth in July?

Daytime temperatures usually reach 79°F in Duluth in July with no heat and humidity, falling to 55°F at night.

How sunny is it in Duluth in July?

There are normally 10 hours of bright sunshine each day in Duluth in July - that's 66% of daylight hours.

How warm is the sea around Duluth in July?

The average sea temperature around Duluth in July is 48°F.

Does it rain in Duluth in July?

There are usually 11 days with some rain in Duluth in July and the average monthly rainfall is 3.7 inches.

Duluth July sunrise & sunset times

Browse the sunrise and sunset times for Duluth in July 2025. Select a month to view Duluth sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 04:19 20:06
Wednesday, 16th July 2025 04:31 19:58
Thursday, 31st July 2025 04:48 19:41

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