Weather in Portugal in may 2025

Below, check out the weather forecast for may for most popular cities in Portugal. These forecasts are probabilities for may from weather reports for over 10 years. The percentage indicates the probability of having the weather indicated.

Average weather in may in Lisbon

perfect weather UV index: 6

Weather at 6am
59°F

Partly Cloudy

28%

Moderate rain at times

10%

Cloudy

9%

Weather at 12pm
72°F

Partly Cloudy

20%

Moderate rain at times

14%

Heavy rain

7%

Weather at 6pm
68°F

Partly Cloudy

18%

Moderate rain at times

14%

Heavy rain

5%

Weather at 3am
59°F

Clear/Sunny

53%

Partly Cloudy

26%

Moderate rain at times

10%

Cloudy

7%

More information about the weather in Lisbon in may



Where to go in Portugal in may?

Where to go in Portugal in may: destination map

Legend: perfect weather good tolerable bad very bad

Where to go in each region in may?

Alentejo
(Evora, Sines, Beja...)
70°F to 79°F1 à 4 days65°F
perfect weather*
Algarve
(Faro (Algarve), Albufeira, Lagos...)
67°F to 74°F1 à 3 days67°F
perfect weather*
Central Portugal
(Lisbon, Aveiro, Coimbra...)
68°F to 77°F3 à 6 days63°F to 65°F
good weather*
Northern Portugal
(Porto, Viana do Castelo, Amarante...)
67°F to 74°F5 à 7 days63°F
good weather*
*over most of the region. Weather may vary locally.


Where should you go in Portugal in may when it comes to the weather?

Remember:
The climate in Portugal in may ranges from perfect to good depending on the region and city.

The month of May means the return of the beautiful season. Not only is the climate throughout May in Portugal enjoys a pleasant heat due to the increase in temperatures and further takes advantage of the regression in bad weather with beautiful sunny days. The whole Portuguese territory is favored by a warmer and less humid climate but it is the south of the country that you benefits from ideal climatic conditions.

May in Lisbon, Porto and Northern Portuga

The climates in Porto and Lisbon have a certain similarity. The mornings are mild while the heat in the middle of the day begins to be felt. Even if the weather throughout May in Portugal, especially north of Lisbon, is magnificent - it is necessary to be wary of the intermittent rains that may come as a surprise in the middle of day during the first twenty days.

May in Faro (Algarve) and Southern Portugal

It is possible to relax in privacy on the beaches of the south coast. All the conditions are combined to allow for a beautiful holiday away from the crowds. From sun all day to the warm weather, the climate in Portugal throughout May is the ideal accomplice to any entertainment, whether swimming or hikes in the wilderness.

May in the Madeira Archipelago

In May, despite the rise in temperature that occurs on the archipelago of Madeira, the heat has not completely returned. We are barely away from the freshness of the atmosphere. Compared to last month, daily temperatures increased by only one degree Celsius. The difference is barely perceptible. With the regression of humidity however, the weather is rather radiant.


Climate in Portugal in may

Climate in Lisbon in may

In the month of may, maximum temperature is 72°F and minimum temperature is 59°F (for an average temperature of 67°F). The climate pleasant around this city in this month. With barely 2.6in over 4 days, rain may be scarce during your journey.
With a good weather, the month of may is a good time to go in this city in Portugal.

May
Average temperature 67°F
Highest temperature 72°F
Lowest temperature 59°F
Sea temperature 64°F
Rainfall 2.6in
Number of days with rainfall 4 day(s)
(12%)
Humidity 81%
Daily sunshine hours 14
Cloud cover 24%
Length of day 14:17
Our opinion at whereandwhen.net perfect
more information about the climate in Lisbon in may

Climate in Albufeira in may

In the month of may, the mean temperature in Albufeira is 67°F (maximum temperature is 72°F and minimum temperature is 61°F). The climate enjoyable here in this month. With barely 0.9in over 2 days, it rains very little throughout your journey.
With ideal weather conditions, may is a recommended month to go in that area in Portugal.

May
Average temperature 67°F
Highest temperature 72°F
Lowest temperature 61°F
Sea temperature 66°F
Rainfall 0.9in
Number of days with rainfall 2 day(s)
(6%)
Humidity 77%
Daily sunshine hours 14
Cloud cover 18%
Length of day 14:10
Our opinion at whereandwhen.net perfect
more information about the climate in Albufeira in may

Climate in Aveiro in may

In may, maximum temperature is 70°F and minimum temperature is 58°F (for an average temperature of 65°F). The climate is good in this city in this month. With 3.7in over 5 days, rain may occur throughout your holidays. But this is moderate and you will not be too bothered by it.
With a good climate, may is a good time to go in this locality.

May
Average temperature 65°F
Highest temperature 70°F
Lowest temperature 58°F
Sea temperature 62°F
Rainfall 3.7in
Number of days with rainfall 5 day(s)
(17%)
Humidity 83%
Daily sunshine hours 14
Cloud cover 27%
Length of day 14:27
Our opinion at whereandwhen.net good
more information about the climate in Aveiro in may

Climate in Coimbra in may

In the month of may, maximum temperature is 74°F and minimum temperature is 56°F (for an average temperature of 65°F). The climate is quite pleasant around this city in may. With 3.4in over 5 days, rainfall can happen throughout your holidays. But this is pretty reasonably and it will not be continuous.
With a good weather, the month of may is an advisable month to go in Coimbra in Portugal.

May
Average temperature 65°F
Highest temperature 74°F
Lowest temperature 56°F
Rainfall 3.4in
Number of days with rainfall 5 day(s)
(15%)
Humidity 86%
Daily sunshine hours 14
Cloud cover 32%
Length of day 14:25
Our opinion at whereandwhen.net good
more information about the climate in Coimbra in may

Climate in Faro (Algarve) in may

In the month of may, maximum temperature is 72°F and minimum temperature is 63°F (for an average temperature of 67°F). The climate comfortable in that area in the month of may. With barely 0.7in over 1 days, rain may be scarce for your journey.
With ideal weather conditions, may is an advisable time to go in that area in Portugal.

May
Average temperature 67°F
Highest temperature 72°F
Lowest temperature 63°F
Sea temperature 66°F
Rainfall 0.7in
Number of days with rainfall 1 day(s)
(3%)
Humidity 75%
Daily sunshine hours 14
Cloud cover 18%
Length of day 14:09
Our opinion at whereandwhen.net perfect
more information about the climate in Faro (Algarve) in may


All cities in Portugal in may

Lisbon in mayperfect weather
Albufeira in mayperfect weather
Aveiro in maygood weather
Coimbra in maygood weather
Faro (Algarve) in mayperfect weather
Fatima in maygood weather
Lagos in mayperfect weather
Porto in maygood weather
Viana do Castelo in maygood weather
Amarante in maygood weather
Beja in mayperfect weather
Cascais in maygood weather
Evora in maygood weather
Portimao in mayperfect weather
Praia de Mira in maygood weather
Sines in mayperfect weather
Sintra in mayperfect weather
Alcobaça in maygood weather
Aljezur in maygood weather
Altura in mayperfect weather
Arganil in maygood weather
Caminha in maygood weather
Carvoeiro in mayperfect weather
See full list of cities (121)


Weather data for Portugal in may:

Weather data for Portugal in may is derived from an average of the weather forecast since 2009 in Portugal. There is a margin of error and these forecasts are to be considered as general information only. The weather in Portugal can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Portugal.


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