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 maximum daytime temperature in August in Waimea, Big Island79
    79°F max day temperature
  • 7 hours of sunshine per day
  • 20 days with some rainfall in August in Waimea, Big Island20
    20 days with some rainfall
  • 63°F minimum night-time temperature in August in Waimea, Big Island63
    63°F min night temperature
  • 13 hours of daylight per day in August in Waimea, Big Island13
    13 hours of daylight per day
  • Low heat & humidity in August in Waimea, Big IslandL
    Low heat & humidity
  • 1.6 inches monthly rainfall in August in Waimea, Big Island1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Waimea, Big Island11
    11+ (Extreme) UV index

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Waimea, Big Island by month

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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)

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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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