Hawaii weather in August 2019

  • 86°F maximum daytime temperature in August in Hawaii (Honolulu, Oahu)86
    86°F max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in August in Hawaii (Honolulu, Oahu)7
    7 days with some rainfall
  • 72°F minimum night-time temperature in August in Hawaii (Honolulu, Oahu)72
    72°F min night temperature
  • 13 hours of daylight per day in August in Hawaii (Honolulu, Oahu)13
    13 hours of daylight per day
  • High heat & humidity in August in Hawaii (Honolulu, Oahu)H
    High heat & humidity
  • 0.6 inches monthly rainfall in August in Hawaii (Honolulu, Oahu)0.6
    0.6 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Hawaii (Honolulu, Oahu)11
    11+ (Extreme) UV index
  • 81°F sea temperature in August in Hawaii (Honolulu, Oahu)81
    81°F sea temperature

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Expect 86°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Hawaii in August. Check more long-term weather averages for Hawaii in August before you book your next holiday to Hawaii in 2019/2020. The August weather averages shown above are for Honolulu, Oahu.

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The August weather guide for Hawaii, represented by 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.

Metric (°C)  |  Imperial (°F)

Guide to Hawaii weather in August

The average maximum daytime temperature in Hawaii in August 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 73% of the 13 hours of daylight.

Expect 14mm (0.6 inches) of rainfall across the whole of August with 7 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 Hawaii in August is 27°C (81°F).

The weather in Hawaii in August is represented by Honolulu, Oahu.

Hawaii sunrise & sunset times for August 2019

Browse the sunrise & sunset times for Hawaii in August 2019. Select a month to view Hawaii sunrise & sunset times for the next twelve months. The Hawaii sunrise & sunset times shown below are for Honolulu, Oahu.


Date Sunrise times Sunset times
Thursday, 1st August 2019 06:05 19:10
Friday, 2nd August 2019 06:05 19:10
Saturday, 3rd August 2019 06:06 19:09
Sunday, 4th August 2019 06:06 19:09
Monday, 5th August 2019 06:06 19:08
Tuesday, 6th August 2019 06:07 19:08
Wednesday, 7th August 2019 06:07 19:07
Thursday, 8th August 2019 06:07 19:06
Friday, 9th August 2019 06:08 19:06
Saturday, 10th August 2019 06:08 19:05
Sunday, 11th August 2019 06:09 19:04
Monday, 12th August 2019 06:09 19:04
Tuesday, 13th August 2019 06:09 19:03
Wednesday, 14th August 2019 06:10 19:02
Thursday, 15th August 2019 06:10 19:02
Friday, 16th August 2019 06:10 19:01
Saturday, 17th August 2019 06:11 19:00
Sunday, 18th August 2019 06:11 18:59
Monday, 19th August 2019 06:11 18:59
Tuesday, 20th August 2019 06:11 18:58
Wednesday, 21st August 2019 06:12 18:57
Thursday, 22nd August 2019 06:12 18:56
Friday, 23rd August 2019 06:12 18:55
Saturday, 24th August 2019 06:13 18:55
Sunday, 25th August 2019 06:13 18:54
Monday, 26th August 2019 06:13 18:53
Tuesday, 27th August 2019 06:14 18:52
Wednesday, 28th August 2019 06:14 18:51
Thursday, 29th August 2019 06:14 18:50
Friday, 30th August 2019 06:14 18:49
Saturday, 31st August 2019 06:15 18:48
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