Hilo, Big Island weather in July 2026

Expect daytime maximum temperatures of 75°F in Hilo, Big Island, Hawaii in July based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 10.8 inches of rainfall in the month.

  • 75°F maximum daytime temperature in July in Hilo, Big Island75
    75°F max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in July in Hilo, Big Island16
    16 days with some rainfall
  • 61°F minimum night-time temperature in July in Hilo, Big Island61
    61°F min night temperature
  • 13 hours of daylight per day in July in Hilo, Big Island13
    13 hours of daylight per day
  • Moderate heat & humidity in July in Hilo, Big IslandM
    Moderate heat & humidity
  • 10.8 inches monthly rainfall in July in Hilo, Big Island10.8
    10.8 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in Hilo, Big Island11
    11+ (Extreme) UV index
  • 79°F sea temperature in July in Hilo, Big Island79
    79°F sea temperature

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Hilo, Big Island by month

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The July weather guide for Hawaii (Hilo, 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 Hilo, Big Island in July?

Daytime temperatures usually reach 84°F in Hilo, Big Island in July with high heat and humidity, falling to 72°F at night.

How sunny is it in Hilo, Big Island in July?

There are normally 10 hours of bright sunshine each day in Hilo, Big Island in July - that's 72% of daylight hours.

How warm is the sea around Hilo, Big Island in July?

The average sea temperature around Hilo, Big Island in July is 79°F.

Does it rain in Hilo, Big Island in July?

There are usually 8 days with some rain in Hilo, Big Island in July and the average monthly rainfall is 0.5 inches.

Hilo, Big Island July sunrise & sunset times

Browse the sunrise and sunset times for Hilo, Big Island in July 2026. Select a month to view Hilo, Big Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st July 2026 05:45 19:03
Thursday, 16th July 2026 05:51 19:02
Friday, 31st July 2026 05:56 18:57

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