When to Go – Lisbon Weather Forecast & Climate

Weather in Lisbon

April, May, June and September are the best months to visit Lisbon, being generally warm and sunny with pleasant temperatures.

The summer is warm and sunny, and the autumn is mild and rainy. August is the hottest month with an average temperature of 24°C (75ºF), and January is the coldest month with an average temperature of 12°C (54ºF). The wettest month is November, with an average of 128mm of rain.

Tourist Seasons

  • High season (with the highest prices on airline tickets and hotels) runs 15 June through 1 September, plus Christmas/New Year’s season, (roughly) 20 December to 6 January.
  • Low season (to truly save on a visit to Lisbon) runs from mid October through just before Easter.
  • Shoulders season covers the autumn and spring months, from after Easter to mid June, and from September to mid October

5 Days Lisbon Weather Forecast

Friday 01/19 10%
A few clouds. Low 8C.
Tomorrow 01/20 10%
Mainly sunny. High 17C. Winds N at 10 to 15 km/h.
Partly Cloudy
Sunday 01/21 10%
Partly Cloudy
Considerable clouds early. Some decrease in clouds later in the day. High 17C. Winds NNW at 10 to 15 km/h.
Monday 01/22 10%
Mainly sunny. High 17C. Winds N at 10 to 15 km/h.
Partly Cloudy
Tuesday 01/23 10%
Partly Cloudy
Sunshine and clouds mixed. High 16C. Winds N at 10 to 15 km/h.

Summer in Lisbon

Typical temperatures for summer are between 25ºC and 30°C (77°F to 86°F), with clear skies and lots of sun. Summer is the perfect time to go to one of the great beaches around Lisbon or sunbathe on the bank of the River Tejo. Expect some crowded shores.

Occasionally, temperatures exceed 35°C (95ºF), due to African air masses that originate heat waves over long periods (a week or so) of excessively hot weather. Be sure to wear a hat, sunglasses and sunscreen.

Summer is the peak season in Lisbon with several festivals and events all over the city. One of the most famous is the celebration of the Patron Saints (Festas dos Santos Populares) in the historic districts, with arraiais, street parties with sardine-feasting, drinking and dancing. For details on the many festivals and events during the summer, check out our Lisbon events calendar.

Spring and Autumn in Lisbon

Spring and autumn are good seasons to visit Lisbon, with average daytime temperatures from 20ºC to 25ºC (68ºF to 77°F).

Spring, from March to May, is mild, with some periods of showers or rain, which become rare by the end of April.

From mid-September to November, the weather is still warm and sometimes sunny, gradually becoming colder and rainy as November approaches. Be sure to take an umbrella and a raincoat if you visit Lisbon during this time of the year.

During these seasons, the city is less touristy, and there are fewer crowds when visiting monuments or eating at trendy restaurants.

Winter in Lisbon

The winter months, from December to mid-March, are warm when compared to most European countries because of the influence of the Atlantic Ocean. The average temperature is 12ºC (54ºF). Daytime temperatures are generally comfortable, around 16ºC (61ºF), but at night they can lower, going down to 5ºC (41ºF). Freezing days are rare in Lisbon, and snow is almost nonexistent.

Hotel rates and airline tickets are cheapest in this season. There are less tourists, and attractions can be visited without enduring a long wait.

Lisbon Weather in a Nutshell

  • Summer is expensive, hot and crowded with tourists, not recommended unless you go to the beach.
  • Winter is chillier and the days are smaller; however, the hotel and airline prices are lowest and sights are yours to enjoy, no crowds around.
  • Spring is sunny and nice. Hotel and airline tickets have acceptable prices, but tickets sell out quickly and budget hotels book up fast.
  • Autumn can be rainy, and there may even be a few days of heavy rain, but other than that the weather is fine with comfortable temperatures. As in spring, prices are decent, hotels may be less booked, and attractions can be visited at your own rhythm.