Block Island weather in January 2026

Expect daytime maximum temperatures of 3°C in Block Island in January based on long-term weather averages. There are 6 hours of sunshine per day on average with 11 days with some rainfall and typically 102 mm of rainfall in the month, which might fall as snow.

  • 3°C maximum daytime temperature in January in Block Island3
    3°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in January in Block Island11
    11 days with some rainfall
  • -6°C minimum night-time temperature in January in Block Island-6
    -6°C min night temperature
  • 10 hours of daylight per day in January in Block Island10
    10 hours of daylight per day
  • No heat & humidity in January in Block Island0
    No heat & humidity
  • 102 mm monthly rainfall in January in Block Island102
    102 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Block Island2
    2 (Low) UV index
  • 6°C sea temperature in January in Block Island6
    6°C sea temperature

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The January 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 / mm)  |  Imperial (°F / inches)

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How cold is it in Block Island in January?

Daytime temperatures usually reach 3°C in Block Island in January, falling to -6°C at night.

How sunny is it in Block Island in January?

There are normally 6 hours of bright sunshine each day in Block Island in January - that's 59% of daylight hours.

Is the sea cold around Block Island in January?

The average sea temperature around Block Island in January is 6°C.

Does it rain in Block Island in January?

There are usually 11 days with some rain in Block Island in January and the average monthly rainfall is 102mm. Rain may fall as snow in this month.

Block Island January sunrise & sunset times

Browse the sunrise and sunset times for Block Island in January 2026. Select a month to view Block Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:12 16:28
Friday, 16th January 2026 07:09 16:44
Saturday, 31st January 2026 06:58 17:02

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