Month guide · Barcelona, Spain
Barcelona in May: weather and what to expect
May is the first month of the year with average highs above 20°C in Barcelona. The sea is still cool, around 17°C. In May, Barcelona averages highs of 21°C and lows of 13°C, with about 8 rainy days and 47 mm of rain. Crowds in Catalonia are medium.
Is May a good time to visit?
Good for
No verdicts for Barcelona in May yet. They only use climate values that are precise enough to judge with.
Not ideal for
Nothing stands out as a weaker fit.
Daily highs through May
Town-level · ERA5-Land 1991-2020Highs climb about 4°C over the month. A day above 25°C happens in roughly 1 May in 2.
May in detail
Town-level · ERA5-LandCrowds, holidays and daylight
Public holidays in May 2027
- 1 May Labor Day
Local (municipal) holidays are not included.
Warmer in May
Where is warm in May →| Place | High | Rain days | From Barcelona |
|---|---|---|---|
| Cox, Valencian Community | 26°C | 4 | 445 km |
| Callosa de Segura, Valencian Community | 26°C | 4 | 446 km |
| Redován, Valencian Community | 26°C | 4 | 449 km |
| Albatera, Valencian Community | 26°C | 5 | 441 km |
| Granja de Rocamora, Valencian Community | 26°C | 5 | 444 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Town-level · ERA5-LandMay highs are 0.8°C warmer than in 1991-2000, and May rainfall is about the same (2016-2025 against 1991-2000). Days above 25°C in May went from 1.1 to 2.4 a year on average.
Questions about Barcelona in May
How warm is Barcelona in May?
Average highs are 21°C and lows 13°C. April averages 18°C and June 25°C.
Does it rain much in Barcelona in May?
About 8 days have at least 1 mm of rain, with 47 mm in total over the month.
Is Barcelona busy in May?
In May 2025, nights booked through online platforms in Catalonia were about 50% of the busiest month, which we count as medium. The figure is for the whole region and leaves out hotels.
How long are the days in Barcelona in May?
About 14 h 28 min from sunrise to sunset in the middle of the month.
Sources
Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology