Viana do Castelo weather in December (Norte Region, Portugal)
Planning a trip to Viana do Castelo in December? Check out this comprehensive weather guide.
In December, Viana do Castelo typically experiences moderate temperatures and heavy rainfall. December falls within the winter season. Throughout the daytime, temperatures often hover around 15°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 9°C.
Viana do Castelo in December falls under the rainy season with heavy rainfall, averaging around 217 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 18 days of the month will see rainfall.
The area enjoys a balanced 124 hours of sunlight. Ensuring it's neither too overcast nor too sunny.
If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Viana do Castelo. June, July, August and September typically offer the best circumstances. While January, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Viana do Castelo climate page with graphs.
Viana do Castelo, monthly averages in December
Min Temperature
9°C
Max Temperature
15°C
Chance of Rain
59%
Precipitation
217 mm
Rainy days
18 days
Humidity
81% *
Sunshine
124 hours *
Percentage Sunshine
46% *
Where to go in Portugal in December
Find out more about the weather in Portugal in December and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Viana do Castelo in December?
Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in December.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Viana do Castelo.
Our site offers climate and forecast data for every country in the world. Are you going to Portugal? On this website you can find historical weather averages for many cities in Portugal. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
