May weather forecast and climate
Barcelona, Spain

The artistic Park Gull designed by Gaudi in Barcelona, Spain
The artistic Park Gull designed by Gaudi in Barcelona, Spain

Weather in May

May, the last month of the spring, in Barcelona, is an agreeable month, with average temperature ranging between min 14.6°C (58.3°F) and max 20.5°C (68.9°F).

Temperature

In Barcelona, the average high-temperature slightly increases, from an enjoyable 17.3°C (63.1°F) in April, to a pleasant 20.5°C (68.9°F). In May, in Barcelona, the average low-temperature is 14.6°C (58.3°F).

Humidity

The average relative humidity in Barcelona, Spain, is 70%.

Rainfall

In Barcelona, during 9.7 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 117.9 rainfall days, and 435mm (17.13") of precipitation is accumulated.

Snowfall

March through August, October through December are months without snowfall.

Sea temperature

In Barcelona, in May, the average water temperature is 18.1°C (64.6°F).
Note: For swimming, a surface water temperature of 18.1°C (64.6°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In Barcelona, Spain, the average length of the day in May is 14.5h.

Sunshine

The average sunshine in Barcelona, Spain, is 11.1h.

UV index

In Barcelona, Spain, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in May in Barcelona?

The average high-temperature, in May, in Barcelona, is 20.5°C (68.9°F), while the average low-temperature is 14.6°C (58.3°F).

What is the average humidity in May in Barcelona?

The average relative humidity in May is 70%.

How much does it rain in Barcelona in May?

In Barcelona, Spain, in May, during 9.7 rainfall days, 27mm (1.06") of precipitation is typically accumulated.

When it does not snow in Barcelona?

In Barcelona, Spain, snow does not fall in March through August, October through December.

What is the sea temperature in May in Barcelona?

In Barcelona, Spain, in May, the average water temperature is 18.1°C (64.6°F). For most, swimming in 18.1°C (64.6°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Barcelona have in May?

In Barcelona, the average length of the day in May is 14.5h.

How many hours of sunshine does Barcelona have in May?

In May, the average sunshine in Barcelona is 11.1h.

How high is the UV index in May in Barcelona?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in May
Barcelona, Spain

Average temperature in May - Barcelona, Spain
  • Average high temperature in May: 20.5°C

The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (12.4°C).

  • Average low temperature in May: 14.6°C

The month with the highest average low temperature is August (22.1°C).
The coldest month (with the lowest average low temperature) is February (7.1°C).

[Resources]

Average pressure in May
Barcelona, Spain

Average pressure in May - Barcelona, Spain
  • Average pressure in May: 1015.7mbar

The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).

[Resources]

Average wind speed in May
Barcelona, Spain

Average wind speed in May - Barcelona, Spain
  • Average wind speed in May: 10.4km/h

The windiest month (with the highest average wind speed) is March (12.1km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).

[Resources]

Average humidity in May
Barcelona, Spain

Average humidity in May - Barcelona, Spain
  • Average humidity in May: 70%

Months with the highest relative humidity are April and October (72%).
Months with the lowest relative humidity are February, June and November (68%).

[Resources]

Average rainfall in May
Barcelona, Spain

Average rainfall in May - Barcelona, Spain
  • Average rainfall in May: 27mm

The wettest month (with the highest rainfall) is October (73mm).
The driest month (with the least rainfall) is February (16mm).

[Resources]

Average rainfall days in May
Barcelona, Spain

Average rainfall days in May - Barcelona, Spain
  • Average rainfall days in May: 9.7 days

The month with the highest number of rainy days is September (13.8 days).
The month with the least rainy days is December (6.4 days).

[Resources]

Average snowfall in May
Barcelona, Spain

Average snowfall in May - Barcelona, Spain
  • Average snowfall in May: 0mm

Months with the highest snowfall are January, February and September (1mm).
Months with the least snowfall are March, April, May, June, July, August, October, November and December (0mm).

[Resources]

Average snowfall days in May
Barcelona, Spain

Average snowfall days in May - Barcelona, Spain
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.2 days).
Months with the least snowfall days are March, April, May, June, July, August, October, November and December (0 days).

[Resources]

Average sea temperature in May
Barcelona, Spain

Average sea temperature in May - Barcelona, Spain
  • Average sea temperature in May: 18.1°C

The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (13.1°C).

[Resources]

Average daylight in May /
Average sunshine in May
Barcelona, Spain

Average daylight in May / Average sunshine in May - Barcelona, Spain
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in May: 11.1h

Months with the most sunshine are June and July (Average sunshine: 11.7h).
The month with the least sunshine is December (Average sunshine: 6.7h).

[Resources]

Average sunshine days in May
Barcelona, Spain

Average sunshine days in May - Barcelona, Spain
  • Average sunshine days in May: 18.8 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is September (12.3 days).

[Resources]

Average UV index in May
Barcelona, Spain

Average UV index in May - Barcelona, Spain
  • Average UV index in May: 5

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February and December (UV index 3).

[Resources]

Average cloud cover in May
Barcelona, Spain

Average cloud cover in May - Barcelona, Spain
  • Average cloud cover in May: 23

The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 16).

[Resources]

Average visibility in May
Barcelona, Spain

Average visibility in May - Barcelona, Spain
  • Average visibility in May: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

[Resources]