Lisbon weather
Our guide to the weather in Lisbon during May
Lisbon, Portugal is an exciting and vibrant city with an inviting atmosphere, perfect for exploring in May when temperatures are mild. We've looked at the most up-to-date weather data for Lisbon, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Lisbon weather in May.
How warm is it in Lisbon during May?
The temperature reaches around 22℃ during the daytime in May, falling away to 14℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in Lisbon during May?
On average, there will be 3 rainy days during the month, amounting to 60.8mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Lisbon during May?
You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during May. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.
How warm is the sea in Lisbon during May?
The water around Lisbon is around 17℃ during May. It will feel a little on the cool when first entering, but you'll warm up quickly. Most kids will have no problem with this temperature, but those who feel the cold are unlikely to want to swim.
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If you’re looking for a place to visit that has it all, Lisbon is the city for you. From historical castles to pristine beaches to fantastic food and wine, Lisbon has something for everyone. Before deciding where to stay in Lisbon, make sure to check out the ultimate Lisbon Travel Guide....
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