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Kailua, Big Island weather in August 2025
Expect 23°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in Kailua, Big Island in August. Check more long-term weather averages for Kailua, Big Island in August before you book your next holiday to Hawaii in 2025/2026.
- 2323°C max day temperature
- 1717 days with some rainfall
- 1515°C min night temperature
- 1313 hours of daylight per day
- MModerate heat & humidity
- 5050 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2727°C sea temperature
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Recommended for Hawaii
The August weather guide for Hawaii (Kailua, Big Island) 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 Kailua, Big Island in August?
Daytime temperatures usually reach 23°C in Kailua, Big Island in August, falling to 15°C at night.
How warm is the sea around Kailua, Big Island in August?
The average sea temperature around Kailua, Big Island in August is 27°C.
Does it rain in Kailua, Big Island in August?
There are usually 17 days with some rain in Kailua, Big Island in August and the average monthly rainfall is 50mm.
What is the chance of a hurricane in Kailua, Big Island in August?
On average less than 1 day in August in Kailua, Big Island is likely to be affected by the passage of one or more tropical storms.
Kailua, Big Island August sunrise & sunset times
Browse the sunrise and sunset times for Kailua, Big Island in August 2025. Select a month to view Kailua, Big Island sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Friday, 1st August 2025 | 06:00 | 19:00 |
Saturday, 16th August 2025 | 06:05 | 18:51 |
Sunday, 31st August 2025 | 06:09 | 18:39 |
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