Kahului, Maui weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Kahului, Maui in September. Check more long-term weather averages for Kahului, Maui in September before you book your next holiday to Hawaii in 2025/2026.

  • 30°C maximum daytime temperature in September in Kahului, Maui30
    30°C max day temperature
  • 9 hours of sunshine per day
  • 6 days with some rainfall in September in Kahului, Maui6
    6 days with some rainfall
  • 21°C minimum night-time temperature in September in Kahului, Maui21
    21°C min night temperature
  • 12 hours of daylight per day in September in Kahului, Maui12
    12 hours of daylight per day
  • High heat & humidity in September in Kahului, MauiH
    High heat & humidity
  • 9 mm monthly rainfall in September in Kahului, Maui9
    9 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Kahului, Maui11
    11 (Extreme) UV index
  • 27°C sea temperature in September in Kahului, Maui27
    27°C sea temperature

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The September weather guide for Hawaii (Kahului, Maui) 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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How hot is it in Kahului, Maui in September?

Daytime temperatures usually reach 30°C in Kahului, Maui in September with high heat and humidity, falling to 21°C at night.

How sunny is it in Kahului, Maui in September?

There are normally 9 hours of bright sunshine each day in Kahului, Maui in September - that's 72% of daylight hours.

How warm is the sea around Kahului, Maui in September?

The average sea temperature around Kahului, Maui in September is 27°C.

Does it rain in Kahului, Maui in September?

There are usually 6 days with some rain in Kahului, Maui in September and the average monthly rainfall is 9mm.

Kahului, Maui September sunrise & sunset times

Browse the sunrise and sunset times for Kahului, Maui in September 2025. Select a month to view Kahului, Maui sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:10 18:41
Monday, 15th September 2025 06:13 18:28
Tuesday, 30th September 2025 06:17 18:14

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