Weymouth weather in January 2026

Q: How warm is it in Weymouth in January?

Daytime temperatures usually reach 8°C in Weymouth in January, falling to 3°C at night.

Q: How sunny is it in Weymouth in January?

There are normally 2 hours of bright sunshine each day in Weymouth in January - that's 22% of daylight hours.

Q: Is the sea cold around Weymouth in January?

The average sea temperature around Weymouth in January is 9°C.

Q: Does it rain in Weymouth in January?

There are usually 18 days with some rain in Weymouth in January and the average monthly rainfall is 90mm.

Expect daytime maximum temperatures of 8°C in Weymouth in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 18 days with some rainfall and typically 90 mm of rainfall in the month.

8
8°C max day temperature
2
2 hours of sunshine per day
18
18 days with some rainfall
3
3°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
90
90 mm of monthly rainfall
1
1 (Low) UV index
9
9°C sea temperature

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The January weather guide for England (Weymouth) 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)