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Weather forecast in Viana do Castelo

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This data display current weather and forecast for the coming days in Viana do Castelo. In addition to temperature, wind, humidity and pressure, we include data on the probability of precipitation so you can have all the information about your destination before your trip.

Viana do Castelo current temperature and weather

6 September 2025
Night
Clear
14.1°C
Feels like:
14.1°C
Clear
Wind: 6.5 Km/h (4 mph) SE SE
Pressure: 1012 hPa (29.89 inHg)
Humidity: 82%
Precip. prob.: 0%
Visibility: 10 km (6 mi)

UV index: 0
Morning
Partly Cloudy
18.7°C
Feels like:
18.7°C
Partly Cloudy
Wind: 12.6 Km/h (7.8 mph) S S
Pressure: 1013 hPa (29.91 inHg)
Humidity: 69%
Precip. prob.: 0%
Visibility: 10 km (6 mi)

UV index: 0.8
Day
Overcast
20.7°C
Feels like:
20.7°C
Overcast
Wind: 17.6 Km/h (11 mph) S S
Pressure: 1011 hPa (29.84 inHg)
Humidity: 61%
Precip. prob.: 0%
Visibility: 10 km (6 mi)

UV index: 3.3
Evening
Moderate rain at times
16.6°C
Feels like:
16.6°C
Moderate rain at times
Wind: 17.3 Km/h (10.7 mph) SE SE
Pressure: 1012 hPa (29.88 inHg)
Humidity: 90%
Precip. prob.: 100%
Visibility: 8 km (4 mi)

UV index: 0


Marine weather forecast Viana do Castelo

The graphs show wave heights and directions, as well as wind speed and direction in Viana do Castelo for the coming days. Click on the sea state chart for more details




You may also be interested in other sections of our site for Viana do Castelo: Sea temperature, Sunrise and Sunset, Tides

Viana do Castelo weather by month

In order for you to be able to estimate what the weather is like in Viana do Castelo throughout the year, we provide monthly data for the last few years. Select the month you are interested in.

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

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Our report for Viana do Castelo is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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