The climate in Viana do Castelo during March can be summarized as mild and wet.
March is in the spring in Viana do Castelo and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 6°C (43°F) is normal.
Daytime temperature | 15°C 59°F |
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Nightly temperature | 6.2°C 43.2°F |
Average temperature | 10.6°C 51.1°F |
Daily sunshine | 6 hrs |
Avg rainfall | 154 mm 6.1 ins |
Rainy days | 17 days |
Sea temperature | 13.8°C 56.9°F |
Humidity | 75% |
Windspeed | 18.4kph 11 mph |
On average March is the 6th wettest month of the year in Viana do Castelo with around 154mm 6.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 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 March 2025.
Hottest month: | July | 24.1°C 75.4°F |
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Driest month: | August | 27mm 1.1ins |
Sunniest month: | August | 10hrs |
Coldest month: | January | 12.2°C 54°F |
Wettest month: | January | 232mm 9.1ins |