Dinan Weather in January
What's the weather like in Dinan (Brittany) in January 2026?
The climate in Dinan during January can be summarized as cool and a little damp.
January is in the winter in Dinan and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 8°C (47°F), whilst at night 3°C (37°F) is normal.
| Daytime temperature | 8.1°C 46.5°F |
|---|---|
| Nightly temperature | 3°C 37.3°F |
| Average temperature | 5.5°C 41.9°F |
| Daily sunshine | 2.4 hrs |
| Avg rainfall | 81 mm 3.2 ins |
| Rainy days | 19 days |
| Sea temperature | 10.6°C 51°F |
| Humidity | 88% |
| Windspeed | 18.7kph 12 mph |
On average January is the 3rd wettest month of the year in Dinan with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.4 hours of sunshine per day.
January temperatures in Dinan
January rainfall
January hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Dinan in January 2025.
Other monthly averages
Best places to visit in January
Dinan weather stats
| Hottest month: | July | 21.8°C 71.2°F |
|---|---|---|
| Driest month: | July | 42mm 1.7ins |
| Sunniest month: | July | 8.8hrs |
| Coldest month: | January | 7.9°C 46.2°F |
| Wettest month: | November | 93mm 3.7ins |
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