What is the weather like in Lisbon in May?

Expect temperatures between 14°C and 22°C with 10% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Lisbon in May?

Lisbon in May scores 68/100 based on 30 years of climate data. Solid choice for most travelers.

Who should visit Lisbon in May?

May in Lisbon is ideal for: Budget travelers, Families with children, Elderly travelers, Outdoor enthusiasts, Photographers.

Lisbon Weather in May | 30-Year Forecast

Avg High

22°C

Hottest around day 29

Avg Low

14°C

Coolest around day 1

Rainy Days

0days

10% avg rain chance

Sunshine

8hrs/day

Spring season

Sea Temperature in May

Atlantic Ocean(Atlântico)

17.6°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

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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 May a Good Time to Visit Lisbon?

👍Solid choice for most travelers(68/100)

Short Answer

Hidden gem: Lisbon in May offers 22°C and 10% rain at just 27% of peak crowds. Excellent value without sacrificing weather quality.

Decision Factors

Vaccinations required

Yellow Fever

Off-peak season - fewer crowds

Only 27% of peak - better deals and quiet crowds

Ideal temperature range

21.8°C - perfect for sightseeing and outdoor activities

Excellent dry conditions

Only 10% rain probability - ideal for outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Leishmaniasis, Zika

Plenty of sunshine

12.2h of sunshine daily

Good For

💰
Budget travelers
Off-peak pricing with acceptable weather conditions
👨‍👩‍👧‍👦
Families with children
Comfortable 21.8°C temperatures and low 10% rain risk
👴
Elderly travelers
Comfortable 21.8°C temperature range with manageable humidity
🥾
Outdoor enthusiasts
Ideal hiking conditions: 21.8°C, 10% rain chance
📸
Photographers
12.2h sunshine, 56% clear skies for golden hour shots

Who Should Avoid

🏖️
Beach lovers
Sea temperature only 17.6°C - too cold for comfortable swimming

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Lisbon in May averages 22°C with 10% precipitation probability."

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

Frequently Asked Questions: Lisbon in May

What are the temperatures in Lisbon in May?

Daytime highs average 22°C, nights drop to 14°C. Temperatures remain fairly consistent.

How many rainy days in Lisbon in May?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Lisbon in May?

Comfortable casual wear with a light jacket for evenings.

Is May peak season in Lisbon?

This is typically peak season with higher prices. Book 2-3 months ahead.

Lisbon Weather in May

Sea Temperature in May

Lisbon May 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 May a Good Time to Visit Lisbon?

Decision Factors

Good For

Who Should Avoid

Related Guides

Frequently Asked Questions: Lisbon in May

What are the temperatures in Lisbon in May?

How many rainy days in Lisbon in May?

What to wear in Lisbon in May?

Is May peak season in Lisbon?