Month guide · Viana do Castelo, Portugal
Viana do Castelo in April: weather and what to expect
In April, Viana do Castelo averages highs of 17°C and lows of 10°C, with about 14 rainy days and 154 mm of rain. Highs are 1°C warmer than in March and 2°C cooler than in May. Crowds in Norte are medium.
Is April a good time to visit?
Good for
No verdicts for Viana do Castelo in April yet. They only use climate values that are precise enough to judge with.
Not ideal for
- Reliable dry weatherAbout 14 rainy days in the month
Daily highs through April
Town-level · ERA5-Land 1991-2020Highs climb about 1°C over the month. Nights below 5°C in about 1 in 4.
April in detail
Town-level · ERA5-LandCrowds, holidays and daylight
Public holidays in April 2027
- 25 Apr Freedom Day
Local (municipal) holidays are not included.
Warmer in April
Where is warm in April →| Place | High | Rain days | From Viana do Castelo |
|---|---|---|---|
| Entroncamento, Oeste e Vale do Tejo | 20°C | 10 | 250 km |
| Tomar, Oeste e Vale do Tejo | 20°C | 11 | 235 km |
| Montalvinho, Oeste e Vale do Tejo | 20°C | 10 | 250 km |
| Torres Novas, Oeste e Vale do Tejo | 20°C | 10 | 248 km |
| Meia Via, Oeste e Vale do Tejo | 20°C | 10 | 248 km |
The nearest towns with a warmer April. Distances are in a straight line.
How April is changing
Town-level · ERA5-LandApril highs are 0.9°C warmer than in 1991-2000, and April rainfall is about the same (2016-2025 against 1991-2000). Days above 20°C in April went from 4.0 to 5.5 a year on average.
Questions about Viana do Castelo in April
Is April a good time to visit Viana do Castelo?
It is less suited to reliable dry weather (about 14 rainy days in the month).
How warm is Viana do Castelo in April?
Average highs are 17°C and lows 10°C. March averages 16°C and May 19°C.
Does it rain much in Viana do Castelo in April?
About 14 days have at least 1 mm of rain, with 154 mm in total over the month.
Is Viana do Castelo busy in April?
In April 2025, nights booked through online platforms in Norte were about 55% of the busiest month, which we count as medium. The figure is for the whole region and leaves out hotels.
How long are the days in Viana do Castelo in April?
About 13 h 18 min from sunrise to sunset in the middle of the month.
Sources
Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology