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Waimea, Big Island weather in August 2026
Expect daytime maximum temperatures of 26°C in Waimea, Big Island, Hawaii in August based on long-term weather averages. There are 7 hours of sunshine per day on average with 20 days with some rainfall and typically 41 mm of rainfall in the month.
- 26°C max day temperature
26 - 7 hours of sunshine per day
- 20 days with some rainfall
20 - 17°C min night temperature
17 - 13 hours of daylight per day
13 - Low heat & humidity
L - 41 mm of monthly rainfall
41 - 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 / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Waimea, Big Island in August?
Daytime temperatures usually reach 30°C in Waimea, Big Island in August with high heat and humidity, falling to 22°C at night.
How sunny is it in Waimea, Big Island in August?
There are normally 9 hours of bright sunshine each day in Waimea, Big Island in August - that's 73% of daylight hours.
How warm is the sea around Waimea, Big Island in August?
The average sea temperature around Waimea, Big Island in August is 27°C.
Does it rain in Waimea, Big Island in August?
There are usually 7 days with some rain in Waimea, Big Island in August and the average monthly rainfall is 14mm.
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 2026. Select a month to view Waimea, Big Island sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Saturday, 1st August 2026 | 05:58 | 19:00 |
| Sunday, 16th August 2026 | 06:03 | 18:50 |
| Monday, 31st August 2026 | 06:07 | 18:39 |
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