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Barcelona in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Barcelona in May will be like? Take a look at our weather guide for Barcelona, based on historical data.
Check flight prices to Barcelona on Avionero:
May

Weather in Barcelona in May 2026

Good Weather
Hot
☁️
Cloudy
Planning a trip to Barcelona in May? You are in luck! The weather is generally good, with an average maximum temperature of +31°C and approximately 4 sunny days. Just be prepared for some rain, as there are usually around 13 rainy days and 37 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+31°C
Avg. max. temperature
+22°C
Min.
+36°C
Max.
37 mm
Total precipitation
82%
Avg. humidity
3 m/s
Avg. wind
4 ☀️
Sunny Days
14 ⛅️
Cloudy
13 🌦
Rainy
Our opinion: Barcelona has good weather in May.

Average temperature in Barcelona in May

Here are the expected maximum, average and minimum temperatures in Barcelona for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +32°C during the day to a minimum of +24°C during the night, the temperature in May averages around +31°C.

The average maximum temperature goes down 25% by the end of the month, compared with the beginning of the month, from +31°C to +29°C.

Is Barcelona warm or cold in May?

Barcelona is typically hot in May.

Maximum temperatures go up compared to the previous month from +31°C to +31°C. The minimum temperature also goes up from +24°C to +25°C.

Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.

May is one of the warmest months in Barcelona, here is the comparison with other months:

Climate in Barcelona in May

Barcelona weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+31°C+31°C+30°C
Min. temperature
+21°C+22°C+22°C
Max. temperature
+36°C+36°C+37°C
Rainfall
11 mm37 mm49 mm
Wind
3 m/s3 m/s2 m/s
Humidity
81%82%84%
Air pressure
1010 HPa1011 HPa1012 HPa
Sunny days
542
Cloudy days
19146
Rainy days
61320
Snowy days
000

May weather is still as good as in April. The temperature levels stay the same in the area of +31°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 11 mm to 37 mm. Humidity rises from 81% to 82%. The average wind speed doesn’t change much during May, staying around 3 m/s. The days becoming less sunny, going from 5 sunny days in April to 4 in May.

June brings much the same weather, it remains good.

Wind

Wind speed in Barcelona in May based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Barcelona is gradually decreasing during May, going from 4 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Barcelona based on historical data.
Last Year
Historical Data
Typically, there is a 29% chance of rain on an average day in May, with total rainfall of approximately 34 mm. The maximum amount of rainfall per day is around 13 mm, which is considered light rain. On average, there are about 9 rainy days during May, so prepare to bring an umbrella.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Barcelona wettest month is August, where a typical day has a 68% chance of precipitation and 55 mm of rainfall per day. January, on the other hand, is the driest month with a mere 13% chance of precipitation and 3 mm of rainfall per day.

How was the weather last May in Barcelona?

This is the weather in Barcelona in May 2024:
1 May
☀️
+31°C
2 May
☀️
+30°C
3 May
☀️
+32°C
4 May
☀️
+31°C
5 May
☁️
+31°C
6 May
☁️
+31°C
7 May
☀️
+29°C
8 May
☁️
+32°C
9 May
☁️
+32°C
10 May
☁️
+32°C
11 May
☁️
+32°C
12 May
☀️
+31°C
13 May
☁️
+31°C
14 May
☁️
+31°C
15 May
☁️
+31°C
16 May
☁️
+30°C
17 May
☁️
+31°C
18 May
☁️
+31°C
19 May
☀️
+31°C
20 May
☁️
+30°C
21 May
☁️
+28°C
22 May
🌧️
+27°C
23 May
☁️
+29°C
24 May
☁️
+31°C
25 May
☁️
+29°C
26 May
☁️
+32°C
27 May
☁️
+32°C
28 May
🌧️
+28°C
29 May
☁️
+29°C
30 May
☁️
+30°C
31 May
☁️
+29°C
In May 2024 Barcelona had 7 sunny days, 22 cloudy days, and 2 rainy days. The average maximum temperature was +31°C, with an absolute maximum of +32°C and a minimum of +27°C. The average humidity was 89%, with a maximum of 95% and a minimum of 75%. The average wind speed was 3 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

This is how Barcelona climate have been changing during last 43 years period.

The climate in Barcelona in May has not changed much over the last 43 years.

The average temperature was the lowest in 2021 (+29°C) and the highest in 2014 (+33°C). The driest year was 2024 with only 176 mm of rainfall, and the wettest year was 2004 with 654 mm.

FAQ

Frequently asked questions about the weather in Barcelona in May:

Is May a good time to visit Barcelona?

May is a really good time to go to Barcelona. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Barcelona.

Can you sunbathe in Barcelona in May?

Absolutely, May is hot in Barcelona. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Barcelona rainy in May?

Barcelona is usually dry in May. Plan your packing around outdoor activities and exploring.

Is it sunny in Barcelona in May?

Usually, it’s not very sunny in Barcelona in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Monthly weather in Barcelona

Source of the data

For this page, we’ve looked at the typical weather in Barcelona, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.