Best time to visit Grand Portage

Find the best time to visit Grand Portage and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Grand Portage 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 Grand Portage?

The best time to visit Grand Portage 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]

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Max Day Temperature (°C)

  • -8°C maximum daytime temperature in January in Grand Portage-8
    Jan
  • -5°C maximum daytime temperature in February in Grand Portage-5
    Feb
  • 1°C maximum daytime temperature in March in Grand Portage1
    Mar
  • 10°C maximum daytime temperature in April in Grand Portage10
    Apr
  • 18°C maximum daytime temperature in May in Grand Portage18
    May
  • 22°C maximum daytime temperature in June in Grand Portage22
    Jun
  • 25°C maximum daytime temperature in July in Grand Portage25
    Jul
  • 23°C maximum daytime temperature in August in Grand Portage23
    Aug
  • 18°C maximum daytime temperature in September in Grand Portage18
    Sep
  • 11°C maximum daytime temperature in October in Grand Portage11
    Oct
  • 2°C maximum daytime temperature in November in Grand Portage2
    Nov
  • -6°C maximum daytime temperature in December in Grand Portage-6
    Dec

Hours of Sunshine (daily)

Which is the hottest month in Grand Portage?

The hottest time of year in Grand Portage is normally July. Expect maximum daytime temperatures to reach 25°C with no heat and humidity.

Which month has the most rain in Grand Portage?

In terms of rainfall, August is usually the wettest month in Grand Portage with 89mm on average. There are normally 12 days in August with some rain.

When is it sunniest in Grand Portage?

The sunniest time of year in Grand Portage is normally July with bright sunshine on average for 62% of daylight hours; that's 10 hours of sunshine per day.

When is the sea warmest in Grand Portage?

The sea is usually at its warmest in Grand Portage in August when the water temperature reaches 15°C.

Best time to visit

The weather guide for Minnesota (Grand Portage) 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)

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