Chatham weather in January 2025

Expect 37°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Chatham in January. Check more long-term weather averages for Chatham in January before you book your next holiday to Massachusetts in 2025/2026.

  • 37°F maximum daytime temperature in January in Chatham37
    37°F max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in January in Chatham12
    12 days with some rainfall
  • 23°F minimum night-time temperature in January in Chatham23
    23°F 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
  • 4.1 inches monthly rainfall in January in Chatham4.1
    4.1 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Chatham1
    1 (Low) UV index
  • 41°F sea temperature in January in Chatham41
    41°F 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)  |  Imperial (°F)

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More about the USA

How cold is it in Chatham in January?

Daytime temperatures usually reach 37°F in Chatham in January, falling to 23°F 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.

How warm is the sea around Chatham in January?

The average sea temperature around Chatham in January is 41°F.

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 4.1 inches. Rain may fall as snow in this month.

Chatham January sunrise & sunset times

Browse the sunrise and sunset times for Chatham in January 2025. Select a month to view Chatham sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:07 16:20
Thursday, 16th January 2025 07:04 16:36
Friday, 31st January 2025 06:53 16:55

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