Hertfordshire weather in January 2025

Q: How cold is it in Hertfordshire in January?

Daytime temperatures usually reach 7°C in Watford, Hertfordshire in January, falling to 1°C at night.

Q: 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.

Q: 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 60mm.

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
45°F max day temperature
2
2 hours of sunshine per day
17
17 days with some rainfall
34
34°F min night temperature
8
8 hours of daylight per day
0
No heat & humidity
2.4
2.4 inches of monthly rainfall
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)

More about the UK

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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec