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Honolulu, Oahu weather in August 2025
Expect 30°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Honolulu, Oahu in August. Check more long-term weather averages for Honolulu, Oahu in August before you book your next holiday to Hawaii in 2025/2026.
- 3030°C max day temperature
- 9 hours of sunshine per day
- 77 days with some rainfall
- 2222°C min night temperature
- 1313 hours of daylight per day
- HHigh heat & humidity
- 1414 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2727°C sea temperature
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The August 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.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Honolulu, Oahu in August?
Daytime temperatures usually reach 30°C in Honolulu, Oahu in August with high heat and humidity, falling to 22°C at night.
How sunny is it in Honolulu, Oahu in August?
There are normally 9 hours of bright sunshine each day in Honolulu, Oahu in August - that's 73% of daylight hours.
How warm is the sea around Honolulu, Oahu in August?
The average sea temperature around Honolulu, Oahu in August is 27°C.
Does it rain in Honolulu, Oahu in August?
There are usually 7 days with some rain in Honolulu, Oahu in August and the average monthly rainfall is 14mm.
What is the chance of a hurricane in Honolulu, Oahu in August?
On average less than 1 day in August in Honolulu, Oahu is likely to be affected by the passage of one or more tropical storms.
Honolulu, Oahu August sunrise & sunset times
Browse the sunrise and sunset times for Honolulu, Oahu in August 2025. Select a month to view Honolulu, Oahu sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Friday, 1st August 2025 | 06:05 | 19:10 |
Saturday, 16th August 2025 | 06:10 | 19:00 |
Sunday, 31st August 2025 | 06:15 | 18:48 |
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