Hertfordshire weather in January 2025

Expect 45°F daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Hertfordshire in January. Check more long-term weather averages for Hertfordshire in January before you book your next holiday to Hertfordshire in 2025/2026.

  • 45°F maximum daytime temperature in January in Hertfordshire (Watford)45
    45°F max day temperature
  • 2 hours of sunshine per day
  • 17 days with some rainfall in January in Hertfordshire (Watford)17
    17 days with some rainfall
  • 34°F minimum night-time temperature in January in Hertfordshire (Watford)34
    34°F min night temperature
  • 8 hours of daylight per day in January in Hertfordshire (Watford)8
    8 hours of daylight per day
  • No heat & humidity in January in Hertfordshire (Watford)0
    No heat & humidity
  • 2.4 inches monthly rainfall in January in Hertfordshire (Watford)2.4
    2.4 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Hertfordshire (Watford)1
    1 (Low) UV index

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The January weather guide for Hertfordshire (Watford) 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.

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Metric (°C)  |  Imperial (°F)

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How cold is it in Hertfordshire in January?

Daytime temperatures usually reach 45°F in Watford, Hertfordshire in January, falling to 34°F at night.

How sunny is it in Hertfordshire in January?

There are normally 2 hours of bright sunshine each day in Watford, Hertfordshire in January - that's 19% of daylight hours.

Does it rain in Hertfordshire in January?

There are usually 17 days with some rain in Watford, Hertfordshire in January and the average monthly rainfall is 2.4 inches.

Hertfordshire January sunrise & sunset times

Browse the sunrise and sunset times for Hertfordshire in January 2025. Select a month to view Hertfordshire sunrise and sunset times for the next 12 months. The Hertfordshire sunrise and sunset times shown below are for Watford.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:08 16:03
Thursday, 16th January 2025 08:00 16:23
Friday, 31st January 2025 07:42 16:49

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