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Hilo, Big Island weather in October 2025
Expect 24°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Hilo, Big Island in October. Check more long-term weather averages for Hilo, Big Island in October before you book your next holiday to Hawaii in 2025/2026.
- 2424°C max day temperature
- 5 hours of sunshine per day
- 1515 days with some rainfall
- 1616°C min night temperature
- 1212 hours of daylight per day
- MModerate heat & humidity
- 248248 mm of monthly rainfall
- 1010 (Very High) UV index
- 2626°C sea temperature
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Recommended for Hawaii
The October 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 / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Hilo, Big Island in October?
Daytime temperatures usually reach 24°C in Hilo, Big Island in October, falling to 16°C at night.
How sunny is it in Hilo, Big Island in October?
There are normally 5 hours of bright sunshine each day in Hilo, Big Island in October - that's 39% of daylight hours.
How warm is the sea around Hilo, Big Island in October?
The average sea temperature around Hilo, Big Island in October is 26°C.
Does it rain in Hilo, Big Island in October?
There are usually 15 days with some rain in Hilo, Big Island in October and the average monthly rainfall is 248mm.
Hilo, Big Island October sunrise & sunset times
Browse the sunrise and sunset times for Hilo, Big Island in October 2025. 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 October 2025 | 06:11 | 18:08 |
Thursday, 16th October 2025 | 06:15 | 17:56 |
Friday, 31st October 2025 | 06:21 | 17:46 |
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