Viana do Castelo
Portugal
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Viana do Castelo, Portugal

January, the same as December, in Viana do Castelo, Portugal, is a moderate winter month, with temperature in the range of an average high of 14.6°C (58.3°F) and an average low of 4.9°C (40.8°F). January is the coldest month, with an average high-temperature of 14.6°C (58.3°F) and an average low-temperature of 4.9°C (40.8°F). Weather in January »

The last month of the winter, February, is also a moderate month in Viana do Castelo, Portugal, with average temperature varying between 5.5°C (41.9°F) and 15.5°C (59.9°F). In Viana do Castelo, the average high-temperature is almost the same as in January - a still moderate 15.5°C (59.9°F). Weather in February »

The first month of the spring, March, is a comfortable month in Viana do Castelo, Portugal, with average temperature varying between 7.4°C (45.3°F) and 17.9°C (64.2°F). In Viana do Castelo, the average high-temperature in March is essentially the same as in February - an enjoyable 17.9°C (64.2°F). Weather in March »

April, the same as March, is another comfortable spring month in Viana do Castelo, Portugal, with temperature in the range of an average low of 8.8°C (47.8°F) and an average high of 18.5°C (65.3°F). In Viana do Castelo, the average high-temperature is practically the same as in March - a still comfortable 18.5°C (65.3°F). Weather in April »

The last month of the spring, May, is an agreeable month in Viana do Castelo, Portugal, with average temperature ranging between max 20.7°C (69.3°F) and min 11.1°C (52°F). In Viana do Castelo, the average high-temperature in May is relatively the same as in April - a pleasant 20.7°C (69.3°F). Weather in May »

June, the first month of the summer, in Viana do Castelo, is a warm month, with average temperature varying between 24.5°C (76.1°F) and 13.9°C (57°F). In Viana do Castelo, the average high-temperature in June marginally rises, from a pleasant 20.7°C (69.3°F) in May, to a warm 24.5°C (76.1°F). Weather in June »

July, the same as June, is a moderately hot summer month in Viana do Castelo, Portugal, with average temperature fluctuating between 26.3°C (79.3°F) and 15.3°C (59.5°F). In Viana do Castelo, the average high-temperature is essentially the same as in June - a still moderately hot 26.3°C (79.3°F). Weather in July »

August, the last month of the summer, in Viana do Castelo, is another warm month, with average temperature ranging between min 15.1°C (59.2°F) and max 26.4°C (79.5°F). The warmest month is August, with an average high-temperature of 26.4°C (79.5°F) and an average low-temperature of 15.1°C (59.2°F). Weather in August »

September, the first month of the autumn, in Viana do Castelo, is also a moderately hot month, with average temperature ranging between max 24.8°C (76.6°F) and min 13.7°C (56.7°F). In September, the average high-temperature is almost the same as in August - a still moderately hot 24.8°C (76.6°F). Weather in September »

October, like September, is an agreeable autumn month in Viana do Castelo, Portugal, with average temperature varying between 20.9°C (69.6°F) and 11.2°C (52.2°F). In Viana do Castelo, the average high-temperature in October slightly decreases, from a moderately hot 24.8°C (76.6°F) in September, to an agreeable 20.9°C (69.6°F). Weather in October »

November, the last month of the autumn, in Viana do Castelo, is another comfortable month, with average temperature varying between 8.1°C (46.6°F) and 17.4°C (63.3°F). In Viana do Castelo, the average high-temperature in November marginally drops, from an agreeable 20.9°C (69.6°F) in October, to an enjoyable 17.4°C (63.3°F). Weather in November »

The first month of the winter, December, is still a mild month in Viana do Castelo, Portugal, with temperature in the range of an average low of 6.4°C (43.5°F) and an average high of 15.2°C (59.4°F). In Viana do Castelo, the average high-temperature is essentially the same as in November - a moderate 15.2°C (59.4°F). Weather in December »

What is the coldest month in Viana do Castelo?

January is the coldest month, with an average high-temperature of 14.6°C (58.3°F) and an average low-temperature of 4.9°C (40.8°F).

What are the months with the coldest sea water in Viana do Castelo?

Months with the coldest seawater in Viana do Castelo, Portugal, are February and March, with an average sea temperature of 13.8°C (56.8°F).

When are the longest days in Viana do Castelo?

The month with the longest days in Viana do Castelo, Portugal, is June, with an average of 15.2h of daylight.

What is the warmest month in Viana do Castelo?

With an average high-temperature of 26.4°C (79.5°F) and an average low-temperature of 15.1°C (59.2°F), August is the warmest month in Viana do Castelo, Portugal.

When is the sea warmest in Viana do Castelo?

The month with the warmest seawater in Viana do Castelo is September, with an average sea temperature of 18.3°C (64.9°F).

What is the month with the shortest days in Viana do Castelo?

With an average of 9.2h of daylight, December has the shortest days of the year in Viana do Castelo, Portugal.
Average temperature - Viana do Castelo, Portugal
Average sea temperature - Viana do Castelo, Portugal

The best month for swimming (with the highest average sea temperature) is September (18.3°C).
The coldest months (with the lowest average sea temperature) are February and March (13.8°C).

Average daylight - Viana do Castelo, Portugal

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).