Weather forecast in Viana do Castelo

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

26 September 2025

Night
13.3°C Feels like: 13.2°C	Clear
	Wind: 6.5 Km/h (4 mph) E Pressure: 1018 hPa (30.05 inHg) Humidity: 56%	Precip. prob.: 0% Visibility: 10 km (6 mi) UV index: 0
Morning
18.2°C Feels like: 18.2°C	Sunny
	Wind: 6.1 Km/h (3.8 mph) SE Pressure: 1019 hPa (30.1 inHg) Humidity: 45%	Precip. prob.: 0% Visibility: 10 km (6 mi) UV index: 0.5
Day
20.1°C Feels like: 20.1°C	Sunny
	Wind: 10.4 Km/h (6.5 mph) W Pressure: 1018 hPa (30.07 inHg) Humidity: 53%	Precip. prob.: 0% Visibility: 10 km (6 mi) UV index: 4
Evening
13.7°C Feels like: 13.7°C	Partly Cloudy
	Wind: 6.1 Km/h (3.8 mph) SE Pressure: 1019 hPa (30.08 inHg) Humidity: 78%	Precip. prob.: 0% Visibility: 10 km (6 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

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.

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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.