Portugal weather in April
In April, Portugal averages 20 to 21°C by day across Madeira, the Algarve and Lisbon. Algarve is the warmest at 21°C, Lisbon the coolest at 20°C. The sea is 17 to 20°C.
Portugal in April, place by place
Warmest first. Nowhere here averages 24°C this month. Tap a place for its full April detail.
Heading to Portugal in April?
Share the places you've saved on TikTok and Instagram for Portugal to Dream Trip. It pins them on a map and builds your days around them.
Portugal in April: quick answers
Is Portugal hot in April?
In April, Portugal averages 20 to 21°C by day across Madeira, the Algarve and Lisbon. Algarve is the warmest at 21°C, Lisbon the coolest at 20°C. The sea is 17 to 20°C. April is warm in Algarve: T-shirt days, a light layer for evenings.
Where is warmest in Portugal in April?
Algarve, at an average high of 21°C. The driest is Algarve, with about 48 mm of rain.
Can you swim in the sea in Portugal in April?
Portugal's sea averages below 21°C in April, so most people will find it chilly.
How we measured this
Portugal here means Madeira, the Algarve and Lisbon: the places we measure. Figures are averages of every day from 2016 to 2025 from the Open-Meteo historical weather archive (ECMWF ERA5); sea temperatures are 2023 to 2025 averages. Rain is the average monthly total, and 150 mm or more counts as rainy season.
Planning Portugal in April?
Save the places you find on TikTok and Instagram for Portugal to one map, and Dream Trip turns them into a day-by-day plan.
