2026 Climate Averages

Weather: Porto — December

It's a rainy period, but great for indoor activities, museums, and lower prices.

☔ Climate Overview

December is a wet time to visit Porto. Mild temperatures around 14°C make it comfortable for exploring. This is one of the wettest months—waterproof gear is essential. With only around 9 hours of daylight, plan outdoor activities earlier in the day. Being off-peak, you'll find better deals and fewer crowds. At 15°C, the sea is too cold for most swimmers.

6.1
GoTripzi Score Good

Based on weather comfort, crowds, prices, and activity options

Avg High

14°C

Avg Low

9°C

Rainy days

17days

Daylight

9.2h

Rainfall

178mm

Sunshine

5.9h/day

Humidity

85%

Very Humid
Sun Strength

2.3

Moderate
Wind

18 km/h (gusts 37)

Sea Temp

15°C ❄️ Cold

Is December a good time to visit Porto?

It's a rainy period, but great for indoor activities, museums, and lower prices.

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Travel Context

  • Crowds
    Very Quiet
  • Travel Costs Shoulder Rates

Daylight

Sunrise

07:53

Sunset

17:07

9.2h daylight

Visiting Porto in December: Pros & Cons

Pros

  • Fewer crowds and better hotel deals

Cons

  • Frequent rain may disrupt outdoor activities
  • Sea too cold for comfortable swimming

Things to Do in December

Recommended for This Weather

🏛️ Museums & galleries
🍳 Cooking classes & food tours
🎭 Cultural tours & local experiences

Porto Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 14°C 8°C 12d (160mm) 6.4h
82% Very Humid
2.8 Moderate
Good
Feb 16°C 9°C 10d (96mm) 7.7h
79% Humid
4.1 Moderate
Good
Mar 16°C 9°C 13d (129mm) 9h
77% Humid
5.8 High
Wet
Apr 19°C 11°C 12d (118mm) 10.7h
76% Humid
7.7 Very High
Excellent
May 21°C 14°C 10d (72mm) 12.1h
75% Humid
9.5 Very High
Excellent
Jun 23°C 16°C 9d (60mm) 12.8h
78% Humid
9.9 Very High
Excellent
Jul 27°C 18°C 3d (11mm) 13.2h
72% Humid
10.9 Extreme
Good
Aug 26°C 18°C 2d (8mm) 12.4h
75% Humid
9.6 Very High
Good
Sep 24°C 16°C 10d (81mm) 10.2h
76% Humid
6.8 High
Excellent
Oct 21°C 15°C 15d (212mm) 7.8h
82% Very Humid
4.4 Moderate
Excellent
Nov 17°C 11°C 13d (181mm) 6.8h
84% Very Humid
3 Moderate
Wet
Dec Current 14°C 9°C 17d (178mm) 5.9h
85% Very Humid
2.3 Moderate
Wet

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Your Best MonthJulScore: 7.4
1.Jul
7.42.Aug
7.43.Nov
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6.65.Dec
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6.17.Jan
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5.610.May
4.711.Oct
4.712.Apr
4.3

Where to Stay

See hotels, apartments & rentals around Porto – live prices from Booking.com, Expedia, Vrbo and more

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Porto

Riverside charm, including port wine cellars, Walk across Dom Luís I Bridge and colorful Ribeira district, azulejo tiles, and a bohemian atmosphere.

View Full Destination Guide

What to Pack for December

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility as you move between indoors and outdoors. A waterproof jacket and shoes are non-negotiable — showers are frequent.

Moderate Very Quiet

🎒Personalized Packing List

Tell us about your trip and we'll create a custom packing list based on the weather.

Your Packing List

📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to Porto?

💰 Off-peak — great deals available now

Frequently Asked Questions

Is December a good time to visit Porto?
December is typically wet for visiting Porto, with average highs of 14°C and around 17 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in Porto in December?
Nights in Porto during December are cool at around 9°C. Bring a jacket or sweater for evenings, especially if you plan to dine outdoors or take evening walks. The temperature drop from day to night can be noticeable.
What should I pack for Porto in December?
With highs of 14°C and lows of 9°C in December, we recommend: Layerable clothing, Light jacket, Compact umbrella, Waterproof jacket/shell. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in Porto in December?
Porto typically sees around 17 rainy days in December. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
Can you swim in Porto in December?
Swimming in Porto during December is possible but quite cold, with air temperatures around 14°C. Only brave swimmers venture in without a wetsuit. Consider indoor pools or thermal baths as an alternative if your hotel offers them.
How many hours of daylight are there in Porto in December?
In December, Porto gets approximately 9.2 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is December peak season in Porto?
No, December is not peak season in Porto. Expect better value on accommodation, shorter queues at attractions, and fewer tourists at popular spots. This is an excellent time to experience the city like a local and enjoy a more authentic atmosphere.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: Europe/Lisbon)

Last Updated: February 2026

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