The climate in Viana do Castelo during January can be summarized as cool and very wet.
January is in the winter in Viana do Castelo and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 5°C (41°F) is normal.
|Daytime temperature||12.4°C 54.2°F|
|Nightly temperature||5.1°C 41.1°F|
|Average temperature||8.7°C 47.7°F|
|Daily sunshine||4.1 hrs|
|Avg rainfall||232 mm 9.1 ins|
|Rainy days||19 days|
|Sea temperature||14.3°C 57.7°F|
|Windspeed||18.7kph 12 mph|
On average January is the wettest month of the year in Viana do Castelo with around 232mm 9.1 inches of rain making it a very wet 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 4.1 hours of sunshine per day.
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 Viana do Castelo in January 2023.
|Hottest month:||July||24.1°C 75.4°F|
|Driest month:||August||27mm 1.1ins|
|Coldest month:||January||12.2°C 54°F|
|Wettest month:||January||232mm 9.1ins|