Block Island weather in October 2025

Expect 63°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Block Island in October. Check more long-term weather averages for Block Island in October before you book your next holiday to Rhode Island in 2025/2026.

  • 63°F maximum daytime temperature in October in Block Island63
    63°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in October in Block Island8
    8 days with some rainfall
  • 46°F minimum night-time temperature in October in Block Island46
    46°F min night temperature
  • 11 hours of daylight per day in October in Block Island11
    11 hours of daylight per day
  • No heat & humidity in October in Block Island0
    No heat & humidity
  • 3.6 inches monthly rainfall in October in Block Island3.6
    3.6 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in October in Block Island4
    4 (Moderate) UV index
  • 61°F sea temperature in October in Block Island61
    61°F sea temperature

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The October weather guide for Rhode Island (Block 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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More about the USA

How warm is it in Block Island in October?

Daytime temperatures usually reach 63°F in Block Island in October, falling to 46°F at night.

How sunny is it in Block Island in October?

There are normally 7 hours of bright sunshine each day in Block Island in October - that's 62% of daylight hours.

How warm is the sea around Block Island in October?

The average sea temperature around Block Island in October is 61°F.

Does it rain in Block Island in October?

There are usually 8 days with some rain in Block Island in October and the average monthly rainfall is 3.6 inches.

Block Island October sunrise & sunset times

Browse the sunrise and sunset times for Block Island in October 2025. Select a month to view Block Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 05:43 17:28
Thursday, 16th October 2025 05:59 17:03
Friday, 31st October 2025 06:17 16:43

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