Algarve weather in May
Algarve averages 24°C by day and 15°C at night in May, with the sea at 17°C and 5 days with at least 1 mm of rain. It warms up by about 3°C into June.
Day
24°C
Night
15°C
Sea
17°C
Rainy days
5
Flight from London
2½h
What May feels like
May is hot in Algarve: proper beach weather.
The sea is 17°C: cold for swimming, so plan on a heated pool.
Rain is occasional, on about 5 days.
Of the 48 sun destinations we track, Algarve is the #34 warmest in May, and #11 of 23 within 5½ hours of the UK.
Want it warmer in May?
These are hotter than Algarve this month for at most an hour and a half more flying:
Algarve weather by month
May is highlighted. Compare with April and June, or see the full year in Algarve.
Algarve in May: quick answers
Is Algarve hot in May?
May is hot in Algarve: proper beach weather. Average highs are 24°C and lows 15°C.
Can you swim in Algarve in May?
The sea is 17°C: cold for swimming, so plan on a heated pool.
Does it rain in Algarve in May?
Rain is occasional, on about 5 days.
What is the warmest month in Algarve?
August, at an average high of 32°C. The coolest is January at 16°C.
How long is the flight to Algarve from the UK?
About 2½h direct from London, estimated from the 1,713 km distance. Check your airline for exact times.
Still choosing? See where is hot in May for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in May from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Algarve in May?
Save the restaurants, beaches and views you find on TikTok and Instagram for Algarve straight to a map, then let Dream Trip turn them into a day-by-day plan.
