Barcelona weather in May
In May, Barcelona has an average high of 24 °C76 °F and an average low of 14 °C57 °F, with about 49 mm1.9 in of precipitation. It is the 5th warmest month of the year and ranks 5th for precipitation.
How May compares with other months
Compared with April, May is 3.7 °C6.7 °F warmer on average. Compared with June, May is 4.7 °C8.4 °F cooler on average and wetter by 22 mm0.9 in. Daylight lasts about 14.5 hours around the middle of the month. Average relative humidity is 66% and the average cloud amount 58%.
Is May a good time to visit Barcelona?
Yes — May is one of the most comfortable months to visit Barcelona by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in May
For Barcelona in May, pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
May in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Barcelona | 2476 | 1457 | 491.9 |
| Badalona | 2170 | 1559 | 642.5 |
| Tarragona | 2170 | 1559 | 491.9 |
| Girona | 2170 | 1457 | 622.5 |
| Lleida | 2678 | 1254 | 471.8 |
| Andorra la Vella | 1864 | 745 | 763.0 |
| Perpignan | 2170 | 1457 | 542.1 |
| Palma | 2069 | 1762 | 371.5 |
| Castelló de la Plana | 2374 | 1660 | 491.9 |
Nearby places that are more than 1 °C1.8 °F cooler: Badalona, Tarragona, Girona and Andorra la Vella.
Other months in Barcelona
- January14 °C57 °F / 5 °C41 °F
- February15 °C58 °F / 5 °C41 °F
- March18 °C64 °F / 7 °C45 °F
- April21 °C69 °F / 10 °C51 °F
- May24 °C76 °F / 14 °C57 °F
- June29 °C84 °F / 19 °C66 °F
- July32 °C89 °F / 21 °C70 °F
- August31 °C88 °F / 22 °C71 °F
- September27 °C81 °F / 18 °C65 °F
- October23 °C74 °F / 15 °C58 °F
- November18 °C64 °F / 9 °C48 °F
- December14 °C58 °F / 6 °C42 °F
Frequently asked questions
How warm is Barcelona in May?
In May the average high in Barcelona is 24 °C (76 °F) and the average low is 14 °C (57 °F).
Does it rain a lot in Barcelona in May?
On average about 49 mm (1.9 in) of precipitation falls in May; it ranks 5th of the 12 months.
Is May the warmest month in Barcelona?
No. The warmest month in Barcelona is July, with an average high of 32 °C (89 °F). The coldest month is January, with an average low of 5 °C (41 °F).
How long is the day in Barcelona in May?
In the middle of May the day in Barcelona lasts about 14.5 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Barcelona in May?
The average relative humidity in May is about 66%. This is a long-term average for the whole day.
How cloudy is Barcelona in May?
On average about 58% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 302 m, while Barcelona lies at about 15 m. Temperatures on this page were therefore adjusted by +1.9 °C3.4 °F using the standard lapse rate of 6.5 °C per 1,000 m.