Waimea Bay, Oahu weather in August 2019

• 30
  30°C max day temperature
• 9
  9 hours of sunshine per day
• 9
  9 days with some rainfall
• 22
  22°C min night temperature
• 13
  13 hours of daylight per day
• H
  High heat & humidity
• 79
  79 mm of monthly rainfall
• 11
  11+ (Extreme) UV index
• 26
  26°C sea temperature

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Expect 30°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Waimea Bay, Oahu in August. Check more long-term weather averages for Waimea Bay, Oahu in August before you book your next holiday to Hawaii in 2019/2020.

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The August weather guide for Waimea Bay, Oahu, Hawaii 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)

Guide to Waimea Bay, Oahu weather in August

The average maximum daytime temperature in Waimea Bay, Oahu in August is a hot 30°C (86°F) with high heat & humidity. The average night-time temperature is usually a warm 22°C (72°F). There are usually 9 hours of bright sunshine each day, which represents 72% of the 13 hours of daylight.

Expect 79mm (3.1 inches) of rainfall across the whole of August with 9 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.

The average sea temperature in and around Waimea Bay, Oahu in August is 26°C (79°F).

Waimea Bay, Oahu sunrise & sunset times for August 2019

Browse the sunrise & sunset times for Waimea Bay, Oahu in August 2019. Select a month to view Waimea Bay, Oahu sunrise & sunset times for the next twelve months.

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