Santo Tirso Weather in December

Thinking of visiting Santo Tirso in December? Expect moderate temperatures reaching 15°C (59°F) during the day, dropping to 7°C (45°F) at night. Heavy showers are common during the rainy season.

Rainfall in Santo Tirso in December

Santo Tirso is in the rainy season in December, with rain on around 16 days and an average of 187 mm (7.4 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in Santo Tirso in December

Temperatures in Santo Tirso in December top out at 15°C (59°F) and drop to 7°C (45°F) overnight. December is part of the winter season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 7°C (45°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Santo Tirso in December

The month brings about 124 hours of sunlight, offering a comfortable mix of sun and rainy moments.

Wind Speed in Santo Tirso in December

December has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.

Average water temperature in December

With water at 14°C (57°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

December in Santo Tirso can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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• January
• February
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• May
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• December

For a detailed overview over the year and the best time to visit Portugal, check out our Santo Tirso's climate page.

Santo Tirso Temperature in December

Min Temperature 7°C (45°F)  

Max Temperature 15°C (59°F)  

Water Temperature 14°C (57°F) *  

Chance of Rain 53%  

Precipitation 187 mm (7.4 in)  

Rainy days 16 days  

Humidity 81% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 124 hours *  

Percentage Sunshine 46% *  

* Data from: Porto, Portugal (21 KM, 13 Miles).

What to Wear in Santo Tirso 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. It's going to pour! Pack a good poncho and prepare for very wet conditions. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Santo Tirso in December

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

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

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 Santo Tirso's climate page.

More climate data for Santo Tirso

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Santo Tirso climate overview or explore weather in Portugal.