Green Bay weather in October 2025

Expect 14°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Green Bay in October. Check more long-term weather averages for Green Bay in October before you book your next holiday to Wisconsin in 2025/2026.

  • 14°C maximum daytime temperature in October in Green Bay14
    14°C max day temperature
  • 5 hours of sunshine per day
  • 10 days with some rainfall in October in Green Bay10
    10 days with some rainfall
  • 4°C minimum night-time temperature in October in Green Bay4
    4°C min night temperature
  • 11 hours of daylight per day in October in Green Bay11
    11 hours of daylight per day
  • No heat & humidity in October in Green Bay0
    No heat & humidity
  • 57 mm monthly rainfall in October in Green Bay57
    57 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in Green Bay3
    3 (Moderate) UV index
  • 12°C sea temperature in October in Green Bay12
    12°C sea temperature

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The October weather guide for Wisconsin (Green Bay) 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 / mm)  |  Imperial (°F / inches)

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More about the USA

How warm is it in Green Bay in October?

Daytime temperatures usually reach 14°C in Green Bay in October, falling to 4°C at night.

How sunny is it in Green Bay in October?

There are normally 5 hours of bright sunshine each day in Green Bay in October - that's 47% of daylight hours.

How warm is the sea around Green Bay in October?

The average sea temperature around Green Bay in October is 12°C.

Does it rain in Green Bay in October?

There are usually 10 days with some rain in Green Bay in October and the average monthly rainfall is 57mm.

Green Bay October sunrise & sunset times

Browse the sunrise and sunset times for Green Bay in October 2025. Select a month to view Green Bay sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 05:50 17:32
Thursday, 16th October 2025 06:09 17:05
Friday, 31st October 2025 06:29 16:42

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