São Martinho do Porto Weather in December

São Martinho do Porto in December averages 16°C (61°F) during the day and 10°C (50°F) at night. This is part of the winter season, and quite a bit of rainfall is expected this month.

Rainfall in São Martinho do Porto in December

You can expect rain on around 15 days based on historical patterns, with 87 mm (3.4 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in São Martinho do Porto in December

In December, São Martinho do Porto sees moderate temperatures, with highs of 16°C (61°F). Nights drop to around 10°C (50°F). December is typically considered a winter month. The difference between afternoon and evening temperatures is usually noticeable. At 10°C (50°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 Martinho do Porto in December

The area enjoys a moderate level of sunlight, with around 122 hours. It's a good balance between sunny and cloudy days.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit São Martinho do Porto. Our weather planner can help you explore destinations with more pleasant weather conditions.

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

São Martinho do Porto Temperature in December

Min Temperature 10°C (50°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 48%  

Precipitation 87 mm (3.4 in)  

Rainy days 15 days  

Humidity 82% *  

Sunshine 122 hours *  

Percentage Sunshine 42% *  

* Data from: Cabo Carvoeiro, Portugal (29 KM, 18 Miles).

What to Wear in São Martinho do Porto in December

The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in São Martinho do Porto 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

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 Martinho do Porto's climate page.

More climate data for São Martinho do Porto

Temperature Rainfall Sunshine Humidity

See the full São Martinho do Porto climate overview or explore weather in Portugal.