Chatham weather in January 2026

Expect daytime maximum temperatures of 3°C in Chatham in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 103 mm of rainfall in the month, which might fall as snow.

  • 3°C maximum daytime temperature in January in Chatham3
    3°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in January in Chatham12
    12 days with some rainfall
  • -5°C minimum night-time temperature in January in Chatham-5
    -5°C min night temperature
  • 10 hours of daylight per day in January in Chatham10
    10 hours of daylight per day
  • No heat & humidity in January in Chatham0
    No heat & humidity
  • 103 mm monthly rainfall in January in Chatham103
    103 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Chatham1
    1 (Low) UV index
  • 5°C sea temperature in January in Chatham5
    5°C sea temperature

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The January weather guide for Massachusetts (Chatham) 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 Chatham in January?

Daytime temperatures usually reach 3°C in Chatham in January, falling to -5°C at night.

How sunny is it in Chatham in January?

There are normally 5 hours of bright sunshine each day in Chatham in January - that's 53% of daylight hours.

Is the sea cold around Chatham in January?

The average sea temperature around Chatham in January is 5°C.

Does it rain in Chatham in January?

There are usually 12 days with some rain in Chatham in January and the average monthly rainfall is 103mm. Rain may fall as snow in this month.

Chatham January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:07 16:20
Friday, 16th January 2026 07:04 16:36
Saturday, 31st January 2026 06:53 16:54

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