Seia Weather in December

December in Seia typically sees daytime highs of 12°C (54°F) and nighttime lows of 4°C (39°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the winter season.

Rainfall in Seia in December

Records from the past 30 years suggest around 15 days of rain, with 130 mm (5.1 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Seia in December

If you're visiting Seia in December, expect highs of 12°C (54°F) and overnight lows around 4°C (39°F). The month of December belongs to the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Seia in December

The city usually sees around 105 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Seia 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.

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

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 Seia's climate page.

Seia Temperature in December

Min Temperature 4°C (39°F)  

Max Temperature 12°C (54°F)  

Chance of Rain 49%  

Precipitation 130 mm (5.1 in)  

Rainy days 15 days  

Humidity 78% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 105 hours *  

Percentage Sunshine *  

* Data from: Penhas Douradas, Portugal (12 KM, 8 Miles).

What to Wear in Seia in December

The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Seia 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

Outdoor sports

5/10

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 Seia's climate page.

More climate data for Seia

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Seia climate overview or explore weather in Portugal.