Inside Lisbon Small-Group Day
Fátima, Nazaré and Óbidos Small-Group Day Trip from Lisbon runs through Inside Lisbon. Rated 4.7 across 3,652 reviews. Runs 9 hours. From €65.
Lisbon In May: Weather, Events And Tours
Lisbon in May is warm and mostly dry, with average highs of 22.8C, nights near 14C, and rain on fewer than six days all month. Festas de Lisboa opens on 29 May, so book a Sintra day trip or a sunset sail on the Tagus early.
Lisbon In May: Tours You Can Book
8-People Group Fatima Day
9 hours · Lisbon Riders - travel like a local
From Lisbon: Fatima, Nazare, and Obidos 8-People Group Tour runs through Lisbon Riders - travel like a local. Rated 4.9 across 706 reviews. Runs 9 hours. From €80.
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10-Hour Guided Sintra Day
10 hours · SPR Tours
Guided Tour to Sintra, Pena, Regaleira, Cabo da Roca and Cascais runs through SPR Tours. Rated 4.9 across 3,935 reviews. Runs 10 hours. From €80.
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Riverside E-Bike, Custard Tart
3 hours
Lisbon: The Riverside E-Bike Tour to Belém + Custard Tart. Rated 4.8 across 400 reviews. Runs 3 hours. From €40.
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Budget Sunset Cruise, Drink
2 hours
Lisbon: Tagus River Sunset Cruise with Drinks. Rated 4.9 across 449 reviews. Runs 2 hours. From €33.
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Private Setubal Wine Tasting
6 hours · TakingUThere
Private Wine Tasting in the Setúbal Wine Region, from Lisbon runs through TakingUThere. Rated 4.9 across 635 reviews. Runs 6 hours. From €125.
Check availability →Lisbon In May: Weather And Events
Mean Max / Min22.8C / 14.1C
Rainfall50.7 mm
Days With 1 mm+ Rain5.7
EventsFestas de Lisboa begin 29 May
Main Monuments Closed1 May
The tables below pull together what matters for planning: monthly temperature and rainfall normals, the events calendar, and six bookable tours side by side, from a EUR 33 sunset cruise on the Tagus to a 10-hour guided Sintra day at EUR 80.
Lisbon In May: Questions Answered
Is May a good month to visit Lisbon?
Yes, and many travelers would call it the best time. May averages a daytime high of 22.8C and an overnight low of 14.1C, warm enough for terraces and river cruises without the full summer heat. Only about 5.7 days a month see measurable rain, so long outdoor days, like the 10-hour Sintra tour, are a safe bet.
What is the weather like in Lisbon in May?
Expect mild, mostly dry conditions. Long-term records put the average high at 22.8C and the average low at 14.1C, with about 50.7 mm of rain across the whole month. In practice that means a light jacket for evenings, especially on the water during a sunset sail, and summer clothes for daytime sightseeing.
What events happen in Lisbon in May?
The headline event is the start of the Festas de Lisboa on 29 May, when the Alfama and other old neighborhoods fill with decorations, grilled sardines, and music celebrating the city's patron saint. Arriving late in the month means you catch the opening festivities and the warm weather at once, though popular tours and dinners book up faster.
Does it rain a lot in Lisbon in May?
Not much. May averages roughly 50.7 mm of rain, spread over about 5.7 days with a millimeter or more, so most of the month stays dry. Brief showers can pass through, but they rarely disrupt a full-day plan, and every tour listed here carries free cancellation if you want to shuffle your schedule.
Which tours are best for Lisbon in May?
May weather suits almost everything. The Riverside E-Bike Tour to Belem, at EUR 40 with a custard tart stop, makes the most of dry days, while the Tagus sunset cruise from EUR 33 pairs well with mild evenings. If you want to go farther, the 9-hour small-group Fatima, Nazare and Obidos trip with Inside Lisbon, from EUR 65, is a comfortable full day out.