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Waimea, Big Island weather in August 2025
Expect 79°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Waimea, Big Island in August. Check more long-term weather averages for Waimea, Big Island in August before you book your next holiday to Hawaii in 2025/2026.
- 79°F max day temperature
79 - 7 hours of sunshine per day
- 20 days with some rainfall
20 - 63°F min night temperature
63 - 13 hours of daylight per day
13 - Low heat & humidity
L - 1.6 inches of monthly rainfall
1.6 - 11+ (Extreme) UV index
11
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Recommended for Hawaii
The August weather guide for Hawaii (Waimea, 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) | Imperial (°F)
More about the USA
How hot is it in Waimea, Big Island in August?
Daytime temperatures usually reach 79°F in Waimea, Big Island in August with low heat and humidity, falling to 63°F at night.
How sunny is it in Waimea, Big Island in August?
There are normally 7 hours of bright sunshine each day in Waimea, Big Island in August - that's 52% of daylight hours.
Does it rain in Waimea, Big Island in August?
There are usually 20 days with some rain in Waimea, Big Island in August and the average monthly rainfall is 1.6 inches.
What is the chance of a hurricane in Waimea, Big Island in August?
On average less than 1 day in August in Waimea, Big Island is likely to be affected by the passage of one or more tropical storms.
Waimea, Big Island August sunrise & sunset times
Browse the sunrise and sunset times for Waimea, Big Island in August 2025. Select a month to view Waimea, Big Island sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 05:58 | 18:59 |
| Saturday, 16th August 2025 | 06:03 | 18:50 |
| Sunday, 31st August 2025 | 06:07 | 18:38 |
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