What is the weather like in Lisbon in December?

Expect temperatures between 10°C and 15°C with 23% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Lisbon in December?

Lisbon in December scores 61/100 based on 30 years of climate data. Good option with minor considerations.

Who should visit Lisbon in December?

December in Lisbon is ideal for: Cultural tourists, Honeymoon couples, Business travelers, Adventure seekers.

Lisbon Weather in December | 30-Year Forecast

Avg High

15°C

Hottest around day 6

Avg Low

10°C

Coolest around day 24

Rainy Days

5days

23% avg rain chance

Sunshine

8hrs/day

Winter season

Sea Temperature in December

Atlantic Ocean(Atlântico)

15.7°C

Monthly Average

Water Feel

💧Refreshing

Consider a wetsuit for extended swimming

Swim Rating

🏄Cool, wetsuits recommended

Based on average sea surface temperature

Body of Water

Atlantic Ocean

Atlântico

Lisbon coastline

Essential Travel Info for Lisbon

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

EUR

€ Euro

Language

Portuguese

Driving

Right side

Connect

All of Lisbon has 4G from all Portuguese...

Safety

Very High Safety

GPI: 1.301

Travel Intelligence

Exclusive flight analytics & health data for Lisbon

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Major Hub

100/ 100

Traffic Index

Extremely busy airport

Peak Daily Arrivals

slots per day

Peak

Sep

Low

Jan

Monthly Traffic Distribution

262

Jan

311

Feb

305

Mar

323

Apr

337

May

843

Jun

1238

Jul

1242

Aug

1253

Sep

1187

Oct

1041

Nov

720

Dec

Traffic Level

Low Season

Key Connections

Madrid Adolfo Suárez –Barajas (MAD)

Barcelona (BCN)

Paris Orly (ORY)

Funchal Madeira (FNC)

Porto Francisco de Sá Carneiro (OPO)

Health & Safety Advisory

CDC travel health recommendations

6 Recommendations

COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Consider hepatitis A vaccination for most travelers. It is recommended for travelers who will be doing higher risk activities, such as visiting smaller cities, villages, or rural areas where a traveler might get infected through food or water. It is recommended for travelers who plan on eating street food.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Portugal. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Portugal.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in Portugal.If rabies exposures occur while in Portugal, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

Yellow Fever

CDC recommendations:Vaccine isnotrecommended.Country entry requirements:Vaccine isnotrequired.Updated April 23, 2025

Source: CDC Travelers' Health

View Complete Health Guide

Is December a Good Time to Visit Lisbon?

👌Good option with minor considerations(61/100)

Short Answer

Don't expect beach weather in Lisbon's December: 15.7°C cold seas despite 15°C air temps. Coastal scenery remains beautiful, just pack warm layers.

Decision Factors

Vaccinations required

Yellow Fever

Very high humidity

83% average humidity

Rough sea conditions

1.57m average wave height - Surfers Only

Cold sea - swimming challenging

15.7°C sea temperature - Polar Plunge

Health precautions needed

Be aware of: Leptospirosis, Leishmaniasis, Zika

Shoulder season - balanced conditions

57% of peak - good value with moderate crowds

Good For

🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💑
Honeymoon couples
Wedding score 91/100 with romantic weather conditions
💼
Business travelers
Climate-controlled meetings unaffected by weather
🎯
Adventure seekers
1.57m waves - good for surfing and water sports

Who Should Avoid

🏖️
Beach lovers
Sea temperature only 15.7°C - too cold for comfortable swimming
👴
Elderly travelers
83% humidity creates difficult conditions

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Lisbon in December averages 15°C with 23% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Lisbon in December

What are the temperatures in Lisbon in December?

Daytime highs average 15°C, nights drop to 10°C. Temperatures remain fairly consistent.

How many rainy days in Lisbon in December?

Expect around 5 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Lisbon in December?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is December peak season in Lisbon?

This is shoulder season—moderate prices and manageable crowds.

Lisbon Weather in December

Sea Temperature in December

Lisbon December Weather Calendar

Essential Travel Info for Lisbon

Travel Intelligence

Smart Flight Estimator

Flight Connectivity Analysis

Monthly Traffic Distribution

Key Connections

Health & Safety Advisory

COVID-19

Hepatitis A

Hepatitis B

Measles

Rabies

Yellow Fever

Is December a Good Time to Visit Lisbon?

Decision Factors

Good For

Who Should Avoid

Related Guides

Frequently Asked Questions: Lisbon in December

What are the temperatures in Lisbon in December?

How many rainy days in Lisbon in December?

What to wear in Lisbon in December?

Is December peak season in Lisbon?