Honolulu, Oahu weather in September 2019

  • 30°C maximum daytime temperature in September in Honolulu, Oahu30
    30°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in September in Honolulu, Oahu8
    8 days with some rainfall
  • 22°C minimum night-time temperature in September in Honolulu, Oahu22
    22°C min night temperature
  • 12 hours of daylight per day in September in Honolulu, Oahu12
    12 hours of daylight per day
  • High heat & humidity in September in Honolulu, OahuH
    High heat & humidity
  • 18 mm monthly rainfall in September in Honolulu, Oahu18
    18 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Honolulu, Oahu11
    11 (Extreme) UV index
  • 27°C sea temperature in September in Honolulu, Oahu27
    27°C sea temperature

Going to Honolulu, Oahu? Find the best month to visit Honolulu, Oahu based on the weather.

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Expect 30°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Honolulu, Oahu in September. Check more long-term weather averages for Honolulu, Oahu in September before you book your next holiday to Hawaii in 2019/2020.

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More about Honolulu, Oahu

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The September weather guide for Honolulu, Oahu, Hawaii 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)

Guide to Honolulu, Oahu weather in September

The average maximum daytime temperature in Honolulu, Oahu in September is a hot 30°C (86°F) with high heat & humidity. The average night-time temperature is usually a warm 22°C (72°F). There are usually 9 hours of bright sunshine each day, which represents 74% of the 12 hours of daylight.

Expect 18mm (0.7 inches) of rainfall across the whole of September with 8 days with some rain falling. Maximum UV levels will be extreme (11 UV index) at midday when the skies are clear.

The average sea temperature in and around Honolulu, Oahu in September is 27°C (81°F).

Honolulu, Oahu sunrise & sunset times for September 2019

Browse the sunrise & sunset times for Honolulu, Oahu in September 2019. Select a month to view Honolulu, Oahu sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 06:15 18:48
Monday, 2nd September 2019 06:15 18:47
Tuesday, 3rd September 2019 06:15 18:46
Wednesday, 4th September 2019 06:16 18:45
Thursday, 5th September 2019 06:16 18:44
Friday, 6th September 2019 06:16 18:43
Saturday, 7th September 2019 06:16 18:42
Sunday, 8th September 2019 06:17 18:41
Monday, 9th September 2019 06:17 18:40
Tuesday, 10th September 2019 06:17 18:39
Wednesday, 11th September 2019 06:17 18:38
Thursday, 12th September 2019 06:18 18:37
Friday, 13th September 2019 06:18 18:36
Saturday, 14th September 2019 06:18 18:35
Sunday, 15th September 2019 06:18 18:34
Monday, 16th September 2019 06:19 18:33
Tuesday, 17th September 2019 06:19 18:32
Wednesday, 18th September 2019 06:19 18:32
Thursday, 19th September 2019 06:19 18:31
Friday, 20th September 2019 06:20 18:30
Saturday, 21st September 2019 06:20 18:29
Sunday, 22nd September 2019 06:20 18:28
Monday, 23rd September 2019 06:20 18:27
Tuesday, 24th September 2019 06:21 18:26
Wednesday, 25th September 2019 06:21 18:25
Thursday, 26th September 2019 06:21 18:24
Friday, 27th September 2019 06:21 18:23
Saturday, 28th September 2019 06:22 18:22
Sunday, 29th September 2019 06:22 18:21
Monday, 30th September 2019 06:22 18:20
  • Book flights to Honolulu, Hawaii from the UK with Virgin Atlantic
  • Depart from London Heathrow Airport via Los Angeles Airport
  • Join Flying Club & earn miles with every booking

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