Hawaii weather in October 2025

Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Hawaii in October. Check more long-term weather averages for Hawaii in October before you book your next holiday to Hawaii in 2025/2026.

  • 29°C maximum daytime temperature in October in Hawaii (Honolulu, Oahu)29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in October in Hawaii (Honolulu, Oahu)9
    9 days with some rainfall
  • 21°C minimum night-time temperature in October in Hawaii (Honolulu, Oahu)21
    21°C min night temperature
  • 12 hours of daylight per day in October in Hawaii (Honolulu, Oahu)12
    12 hours of daylight per day
  • High heat & humidity in October in Hawaii (Honolulu, Oahu)H
    High heat & humidity
  • 47 mm monthly rainfall in October in Hawaii (Honolulu, Oahu)47
    47 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in October in Hawaii (Honolulu, Oahu)9
    9 (Very High) UV index
  • 27°C sea temperature in October in Hawaii (Honolulu, Oahu)27
    27°C sea temperature

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The October weather guide for Hawaii (Honolulu, Oahu) 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.

Top Hawaii destinations

Below are average maximum temperatures at popular countries, regions and places in Hawaii in October. Select a holiday destination to see more weather parameters.

All Hawaii destinations

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

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How hot is it in Hawaii in October?

Daytime temperatures usually reach 29°C in Honolulu, Oahu, Hawaii in October with high heat and humidity, falling to 21°C at night.

How sunny is it in Hawaii in October?

There are normally 8 hours of bright sunshine each day in Honolulu, Oahu, Hawaii in October - that's 66% of daylight hours.

How warm is the sea around Hawaii in October?

The average sea temperature around Honolulu, Oahu, Hawaii in October is 27°C.

Does it rain in Hawaii in October?

There are usually 9 days with some rain in Honolulu, Oahu, Hawaii in October and the average monthly rainfall is 47mm.

Hawaii October sunrise & sunset times

Browse the sunrise and sunset times for Hawaii in October 2025. Select a month to view Hawaii sunrise and sunset times for the next 12 months. The Hawaii sunrise and sunset times shown below are for Honolulu, Oahu.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:23 18:19
Thursday, 16th October 2025 06:28 18:06
Friday, 31st October 2025 06:34 17:56

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