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Waimea Bay, Oahu weather in August 2026
Expect daytime maximum temperatures of 86°F in Waimea Bay, Oahu, Hawaii in August and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.1 inches of rainfall in the month.
- 86°F max day temperature
86 - 9 hours of sunshine per day
- 9 days with some rainfall
9 - 72°F min night temperature
72 - 13 hours of daylight per day
13 - High heat & humidity
H - 3.1 inches of monthly rainfall
3.1 - 11+ (Extreme) UV index
11 - 79°F sea temperature
79
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Recommended for Hawaii
The August weather guide for Hawaii (Waimea Bay, 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)
More about the USA
How hot is it in Waimea Bay, Oahu in August?
Daytime temperatures usually reach 86°F in Waimea Bay, Oahu in August with high heat and humidity, falling to 72°F at night.
How sunny is it in Waimea Bay, Oahu in August?
There are normally 9 hours of bright sunshine each day in Waimea Bay, Oahu in August - that's 73% of daylight hours.
How warm is the sea around Waimea Bay, Oahu in August?
The average sea temperature around Waimea Bay, Oahu in August is 81°F.
Does it rain in Waimea Bay, Oahu in August?
There are usually 7 days with some rain in Waimea Bay, Oahu in August and the average monthly rainfall is 0.6 inches.
What is the chance of a hurricane in Waimea Bay, Oahu in August?
On average less than 1 day in August in Waimea Bay, Oahu is likely to be affected by the passage of one or more tropical storms.
Waimea Bay, Oahu August sunrise & sunset times
Browse the sunrise and sunset times for Waimea Bay, Oahu in August 2026. Select a month to view Waimea Bay, Oahu sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Saturday, 1st August 2026 | 06:05 | 19:12 |
| Sunday, 16th August 2026 | 06:11 | 19:02 |
| Monday, 31st August 2026 | 06:15 | 18:49 |
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