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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.

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).

Seia Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Seia - and find the best time to visit.

Best Places in Portugal in December

Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in December →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Seia 3-Day Forecast

More climate data for Seia

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.