Cascais weather in December (Lisbon Region, Portugal)

How does the December weather in Cascais compare to other months? Want to know if it's a good time to visit? This page has all the weather details for the month.

Temperatures

During December, Cascais usually has moderate temperatures and moderate rainfall. During the day, temperatures usually reach up to 17°C. At night, they tend to fall to approximately 13°C.

Precipitation

Cascais in December usually receives moderate rainfall, averaging around 91 mm for the month. Past climate data indicates that roughly 14 days will see rain.

Average sunshine

The month experiences a moderate amount of sunlight, with 162 hours hours. A nice balance between sunshine and clouds.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Cascais. June, July, August, September and October generally stand out with the best circumstances. While January, February, March, April and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Cascais climate page with graphs.

 

Cascais, monthly averages in December

Min Temperature 13°C  

Max Temperature 17°C  

Chance of Rain 47%  

Precipitation 91 mm  

Rainy days 14 days  

Humidity 81%  

Sunshine 162 hours  

Percentage Sunshine 55%  

Where to go in Portugal in December

Find out more about the weather in Portugal and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Cascais, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Cascais.

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 travel conditions. Find out where to go with our weather planner.