São João do Estoril Weather in December

December in São João do Estoril brings moderate temperatures around 16°C (61°F) during the day, dropping to 12°C (54°F) at night, with quite a bit of rainfall expected, averaging around 89 mm (3.5 in) for the month.

Rainfall in São João do Estoril in December

Analyzing past climate data, one can expect approximately 14 days of rain, averaging 89 mm (3.5 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in São João do Estoril in December

December in São João do Estoril sees highs of 16°C (61°F) and lows of 12°C (54°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in São João do Estoril in December

With about 162 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

December in São João do Estoril has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Portugal, check out our São João do Estoril's climate page.

São João do Estoril Temperature in December

Min Temperature 12°C (54°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 47%  

Precipitation 89 mm (3.5 in)  

Rainy days 14 days  

Humidity 81% *  

Sunshine 162 hours *  

Percentage Sunshine 55% *  

* Data from: Cascais, Portugal (3 KM, 1 Miles).

What to Wear in São João do Estoril in December

For São João do Estoril in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in São João do Estoril in December

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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Portugal, check out our São João do Estoril's climate page.

More climate data for São João do Estoril

Temperature Rainfall Sunshine Humidity

See the full São João do Estoril climate overview or explore weather in Portugal.