Climate of Barcelona

Barcelona and its metropolitan area has a maritime Mediterranean climate (Köppen climate classification: Csa), with mild winters and hot summers. According to Troll-Paffen climate classification, Barcelona has a warm-temperate subtropical climate (Warmgemäßigt-subtropisches Zonenklima).[3] According to Siegmund/Frankenberg climate classification, Barcelona has a subtropical climate.[4] Barcelona is located on the eastern coast of the Iberian Peninsula, so Atlantic lows often arrive in Barcelona with low humidity, producing little or no rain. The proximity of the Mediterranean Sea and the relief create a very mild microclimate in Barcelona.

Barcelona (Can Bruixa, Barcelona city)
Climate chart (explanation)
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Average max. and min. temperatures in °C
Precipitation totals in mm
Source: WMO[1]
Barcelona Airport, El Prat de Llobregat (15 kilometres (9.3 mi)) from the city centre)
Climate chart (explanation)
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F
M
A
M
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21
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30
 
 
25
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29
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22
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59
 
 
17
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40
 
 
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Average max. and min. temperatures in °C
Precipitation totals in mm
Source: AEMET[2]

Temperature

General
Yearly max temp Yearly mean temp Yearly min temp
21 °C (70 °F) 18 °C (64 °F) 15 °C (59 °F)

Its average annual temperature is 21.2 °C (70.2 °F) during the day and 15.1 °C (59.2 °F) at night. In the coldest month – January, typically the temperature ranges from 12 to 18 °C (54 to 64 °F) during the day and 6 to 12 °C (43 to 54 °F) at night. In the warmest month – August, the typically temperature ranges from 27 to 31 °C (81 to 88 °F) during the day and about from 20 to 24 °C (68 to 75 °F) at night. Large fluctuations in temperature are very rare.[5]

Seasonal climate
Winter in Barcelona: mild and relatively dry

Winter

Winters in Barcelona are mild. January and February are the coldest months, with average temperatures around 15 °C (59 °F) during the day and 9 °C (48 °F) at night. The hills around the city and in the outer metropolitan area, further from the sea (such as Montjuic), occasionally record frost at night. Frost during the day has been recorded in the city and inner metropolitan area during the strongest cold waves and snowstorms, but is very rare overall. The last time the city recorded a temperature below freezing was in 27 January 2005.[6]

Spring

Spring lasts usually from March to late May, although in some years it might get into June. Maxima are around 19–20 °C (66–68 °F) and minima around 13–14 °C (55–57 °F). Rain is more frequent in spring than in winter and summer, but less than autumn.

Summer

Generally the summer season lasts from late May or early June to late September or early October. July and August are the warmest months, with average temperatures around 28–29 °C (82–84 °F) during the day and 22–23 °C (72–73 °F) at night. In June and September the average temperature is around 26 °C (79 °F) during the day and 20 °C (68 °F) at night. Daytime temperatures above 34 °C (93 °F) are rare.

Autumn

Autumn is the rainiest season of the year, lasting from October to December. Maxima are around 18–19 °C (64–66 °F) and minima around 12–13 °C (54–55 °F).

Sunshine

Sunshine duration is 2,524 hours per year, from 138 - average 4.5 hours of sunshine per day in December to 310 - average 10 hours of sunshine per day in July.[5] This is the middling value for the southern half of Europe because in this part of the continent, sunshine duration varies from about 2,000 to about 3,000 hours per year. However, this is 60% larger value than in northern half of Europe, where sunshine duration is around 1500 hours per year. In winter Barcelona has about three times the sun duration of northern Europe. Barcelona has the UV index close to that of Madrid, differentiating only in the month of March but in the average with the same value being equal to 5, the value varies from 9 (June and July) to 1 (December).[7][8] Although at about the same latitude New Haven, Connecticut has values a little lower than Barcelona but still close.[9]

Climate data for Barcelona
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean monthly sunshine hours 149 163 200 220 244 262 310 282 219 180 146 138 2,524
Mean daily sunshine hours 4.80 5.71 6.45 7.33 7.87 8.73 10.0 9.09 7.30 5.80 4.86 4.45 6.9
Percent possible sunshine 50 56 48 54 57 62 69 67 55 52 52 47 55
Average ultraviolet index 2 3 4 6 7 9 9 8 6 4 2 1 5
Source: Agencia Estatal de Meteorología (mean daily and monthly sunshine hours),[5] climatemps.com (percent possible sunshine)[10] and Weather Atlas (UV index)[11]

Daylight

Barcelona enjoys one of the most optimal number of hours of winter daylight in Europe. Days in winter are not as short as in the northern part of the continent, the average hours of daylight in December, January and February is 10 hours[12] (for comparison: London[13] or Moscow[14] or Warsaw[15] - about 8 hours).

Average hours of daylight[12]
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
hours of light 10 11 12 13 15 15 15 14 12 11 10 9
hours of Twilight/Night 14 13 12 11 9 9 9 10 12 13 14 15

Precipitation

Barcelona has on average only 55 precipitation days a year, therein average several rainy days per month (≥ 1 mm), ranging from 2 in July to 6 in October. The average annual precipitation is less than 640 mm (25 inches), ranging from 20 mm (0.79 inch) in July to 91 mm (3.58 inch) in October.[5]

Climate data for Barcelona (precipitation days - 1 mm)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average precipitation mm (inches) 41
(1.6)		 29
(1.1)		 42
(1.7)		 49
(1.9)		 59
(2.3)		 42
(1.7)		 20
(0.8)		 61
(2.4)		 85
(3.3)		 91
(3.6)		 58
(2.3)		 51
(2.0)		 640
(25.2)
Average precipitation days (≥ 1 mm) 5 4 5 5 5 4 2 4 5 6 5 5 55
Source: Agencia Estatal de Meteorología[5]
Climate data for Barcelona (precipitation days - 0.1 mm)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average precipitation days (≥ 0.1 mm) 6 5 6 7 7 6 3 6 6 8 6 6 72
Source: World Meteorological Organization[1]

Humidity

Average relative humidity is 72%, ranging from 69% in July to 75% in October.[5]

Climate data for Barcelona
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average relative humidity (%) 73 71 71 71 73 72 69 72 73 75 74 73 72
Source: Agencia Estatal de Meteorología[5]

Snow

Snowfalls in the city are rare, but light snowfall events can happen ever year on the top of the mountains around the city and in the depths of the metropolitan area (far from the sea) more frequently, sometimes with heavy snowfall.[16][17] Two heavy snowfalls occurred in Christmas 1962, being the heaviest snowfalls ever recorded in Barcelona.[18] But according to old news sources, it was in 1887. Since 1962, the heaviest snowfall happened in 2010, during which public transport and roads were shut down.[19][20]

Climate data for Barcelona Airport (El Prat de Llobregat) about 20 kilometres (12 mi) from the city center
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average snowy days 0.1 0.2 0.1 0 0 0 0 0 0 0 0.1 0 0.4
Source: Agencia Estatal de Meteorología[5]
Climate data for Fabra Observatory, altitude: 408 metres (1,339 ft) m.a.s.l.
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average snowy days 0.5 0.7 0.3 0 0 0 0 0 0 0 0.1 0.2 2.0
Source: Agencia Estatal de Meteorología[5]

Mean maximums and minimums
Climate data for Barcelona Can Bruixa, 1987–2010
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean maximum °C (°F) 19.9
(67.8)		 20.4
(68.7)		 23.7
(74.7)		 24.4
(75.9)		 27.7
(81.9)		 31.4
(88.5)		 32.7
(90.9)		 33.8
(92.8)		 30.0
(86.0)		 26.9
(80.4)		 23.0
(73.4)		 20.4
(68.7)		 33.8
(92.8)
Mean minimum °C (°F) 4.1
(39.4)		 4.7
(40.5)		 6.2
(43.2)		 8.2
(46.8)		 11.6
(52.9)		 15.3
(59.5)		 17.9
(64.2)		 18.6
(65.5)		 15.4
(59.7)		 12.1
(53.8)		 6.9
(44.4)		 4.8
(40.6)		 4.1
(39.4)
Source: Agencia Estatal de Meteorología - Servei Meteorològic de Catalunya[21]

Temperature extremes

The highest temperature recorded during the day was 37.4 °C (99.3 °F) on 27 August 2010; the average August 2003 maximum temperature during the day was 32.8 °C (91.0 °F). The coldest temperature recorded was −8.0 °C (17.6 °F) at night on 27 December 1962.[22]

Climate data for Barcelona Can Bruixa - Barcelona city (1987-2010)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 22.4
(72.3)		 24.8
(76.6)		 28.8
(83.8)		 27.7
(81.9)		 31.6
(88.9)		 35.8
(96.4)		 36.8
(98.2)		 38.2
(100.8)		 33.4
(92.1)		 32.6
(90.7)		 26.1
(79.0)		 23.1
(73.6)		 38.2
(100.8)
Record low °C (°F) −1.0
(30.2)		 0.6
(33.1)		 0.4
(32.7)		 6.2
(43.2)		 6.3
(43.3)		 12.4
(54.3)		 15.5
(59.9)		 15.2
(59.4)		 12.5
(54.5)		 5.4
(41.7)		 1.7
(35.1)		 0.7
(33.3)		 −1.0
(30.2)
Source: Agencia Estatal de Meteorología - Servei Meteorològic de Catalunya[23]
Climate data for Barcelona Airport
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 22.4
(72.3)		 24.5
(76.1)		 27.5
(81.5)		 26.5
(79.7)		 32.0
(89.6)		 34.9
(94.8)		 36.0
(96.8)		 37.4
(99.3)		 34.0
(93.2)		 30.4
(86.7)		 27.0
(80.6)		 27.0
(80.6)		 37.4
(99.3)
Record low °C (°F) −7.2
(19.0)		 −6.6
(20.1)		 −1.4
(29.5)		 0.1
(32.2)		 3.0
(37.4)		 7.8
(46.0)		 11.4
(52.5)		 9.5
(49.1)		 7.6
(45.7)		 3.8
(38.8)		 −1.4
(29.5)		 −8
(18)		 −8
(18)
Source: Agencia Estatal de Meteorología[24]

Fog

Barcelona is generally a sunny city, however, some days of fog and spells of overcast days are not rare. Sea fog is frequent in early spring, when the first warm African air masses come in over the cold sea water.

Thunderstorms

Thunderstorms, which occasionally reach severe limits, are common from mid July until November. The most recent major summer storm was on the 31 July 2002,[25] when over 200 mm (7.87 in) of rain were recorded at some observatories.

Winds

Though Barcelona is normally not a windy city, it is affected by sea breezes from May/June to September and winds from the west and northwest in winter. Eastern gales sometimes cause floods on the coastline. East and northeast winds can exceed 100 km/h (62.14 mph). In winter Barcelona is sometimes affected by the tramontana or mistral winds, like other places in the Northwestern Mediterranean Basin.

Wind direction in Barcelona
7,2%
3,7%
15,2%
11,3%
21,1%
33,7%
4,4%
3,4%
Wind direction in Barcelona from 2002 to 2012 (average values)
North Northeast East South East Southern Southwest West Northwest
7.2% 3.7% 15.2% 11.3% 21.1% 33.7% 4.4% 3.4%
Source: world-weather.ru

Sea temperature

Average annual temperature of sea is about 18 °C (64 °F). In the coldest month – January, the average sea temperature is 13 °C (55 °F). In the warmest month – August, the average sea temperature is 24 to 25 °C (75 to 77 °F).[12][26]

Average sea temperature, according to weather2travel.com:[12]
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
13 °C (55 °F) 13 °C (55 °F) 13 °C (55 °F) 14 °C (57 °F) 17 °C (63 °F) 20 °C (68 °F) 23 °C (73 °F) 25 °C (77 °F) 23 °C (73 °F) 20 °C (68 °F) 17 °C (63 °F) 15 °C (59 °F) 18 °C (64 °F)
Average sea temperature, according to seatemperature.org:[26]
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
13.3 °C (55.9 °F) 13.1 °C (55.6 °F) 13.3 °C (55.9 °F) 14.7 °C (58.5 °F) 17.5 °C (63.5 °F) 20.9 °C (69.6 °F) 22.9 °C (73.2 °F) 24.1 °C (75.4 °F) 23.1 °C (73.6 °F) 20.9 °C (69.6 °F) 17.7 °C (63.9 °F) 15.1 °C (59.2 °F) 18.1 °C (64.6 °F)

Seasonal information

Snow is rare in Barcelona (falling only once every two years on average), although there are resorts for winter sports in the Pyrenees 100–150 km from the city. Because of the climate and geographical location, the city hopes to host the 2026 Winter Olympics. The opening and closing ceremonies, medal ceremonies and indoor sports would be held in Barcelona, while outdoor sports would be held in ski resorts in the Pyrenees, mainly La Molina.[27] Summers in Barcelona area are warm. Summer temperatures - above 20 °C (68 °F) - begin as early as May, although in this month the sea temperature is still mild: around 17–18 °C (63–64 °F). The summer season ends in October. Over the summer season (4 months), the average temperatures is 26–29 °C (79–84 °F) during the day and the average sea temperature is 23 °C (73 °F). The weather in Barcelona during spring and autumn can be very changeable. During these months it can rain for quite long periods, but consecutive sunny days are also fairly common. The difference between temperatures during day and night is small because of the strong maritime influence, very rarely surpassing 10 °C.[28]

Climatic data for Barcelona area
Climate data for Barcelona - Les Corts (1987-2010)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) 14.8
(58.6)		 15.6
(60.1)		 17.4
(63.3)		 19.1
(66.4)		 22.5
(72.5)		 26.1
(79.0)		 28.6
(83.5)		 29.1
(84.4)		 26.0
(78.8)		 22.5
(72.5)		 17.9
(64.2)		 15.1
(59.2)		 21.2
(70.2)
Daily mean °C (°F) 11.7
(53.1)		 12.4
(54.3)		 14.2
(57.6)		 15.8
(60.4)		 19.3
(66.7)		 23.0
(73.4)		 25.7
(78.3)		 26.1
(79.0)		 23.0
(73.4)		 19.5
(67.1)		 14.9
(58.8)		 12.3
(54.1)		 18.2
(64.8)
Average low °C (°F) 8.8
(47.8)		 9.3
(48.7)		 10.9
(51.6)		 12.5
(54.5)		 16.1
(61.0)		 19.8
(67.6)		 22.7
(72.9)		 23.1
(73.6)		 20.0
(68.0)		 16.5
(61.7)		 11.9
(53.4)		 9.5
(49.1)		 15.1
(59.2)
Average precipitation mm (inches) 43.7
(1.72)		 31.4
(1.24)		 33.0
(1.30)		 47.7
(1.88)		 47.4
(1.87)		 25.5
(1.00)		 25.1
(0.99)		 40.8
(1.61)		 81.9
(3.22)		 96.5
(3.80)		 45.1
(1.78)		 46.8
(1.84)		 565.0
(22.24)
Average precipitation days (≥ 1 mm) 6.0 5.0 6.2 7.9 7.5 5.5 3.1 5.8 8.0 8.0 6.6 7.0 76.6
Source: Servei Meteorològic de Catalunya[29]
Climate data for Barcelona Airport (1981-2010, altitude: 4 m.a.s.l., location)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) 13.6
(56.5)		 14.3
(57.7)		 16.1
(61.0)		 18.0
(64.4)		 21.1
(70.0)		 24.9
(76.8)		 28.0
(82.4)		 28.5
(83.3)		 26.0
(78.8)		 22.1
(71.8)		 17.3
(63.1)		 14.3
(57.7)		 20.3
(68.5)
Daily mean °C (°F) 9.2
(48.6)		 9.9
(49.8)		 11.8
(53.2)		 13.7
(56.7)		 16.9
(62.4)		 20.9
(69.6)		 23.9
(75.0)		 24.4
(75.9)		 21.7
(71.1)		 17.8
(64.0)		 13.0
(55.4)		 10.0
(50.0)		 16.1
(61.0)
Average low °C (°F) 4.7
(40.5)		 5.4
(41.7)		 7.4
(45.3)		 9.4
(48.9)		 12.8
(55.0)		 16.8
(62.2)		 19.8
(67.6)		 20.2
(68.4)		 17.4
(63.3)		 13.5
(56.3)		 8.6
(47.5)		 5.7
(42.3)		 11.8
(53.2)
Average precipitation mm (inches) 37
(1.5)		 35
(1.4)		 36
(1.4)		 40
(1.6)		 47
(1.9)		 30
(1.2)		 21
(0.8)		 62
(2.4)		 81
(3.2)		 91
(3.6)		 59
(2.3)		 40
(1.6)		 588
(23.1)
Average precipitation days (≥ 1 mm) 4 4 5 5 5 4 2 5 5 6 5 4 53
Mean monthly sunshine hours 158 171 206 239 258 287 293 264 229 196 153 137 2,591
Source: Agencia Estatal de Meteorología[5]

See also

Climate in other places in Iberian Peninsula:

References
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  2. "Valores climatológicos normales. Barcelona Aeropuerto". AEMET. Retrieved 29 January 2021.
  3. Climatic map by Istituto Geografico De Agostini, according to Troll-Paffen climate classification Archived October 4, 2012, at the Wayback Machine
  4. Die Klimatypen der Erde - Pädagogische Hochschule in Heidelberg
  5. "Standard Climate Values. Barcelona Aeropuerto". Retrieved 2018-03-09.
  6. http://w1.bcn.cat/temps/docs/Can_Bruixa%201987-2010.pdf
  7. d.o.o, Yu Media Group. "Barcelona, Spain - Detailed climate information and monthly weather forecast". Weather Atlas. Retrieved 2019-07-03.
  8. d.o.o, Yu Media Group. "Madrid, Spain - Detailed climate information and monthly weather forecast". Weather Atlas. Retrieved 2019-07-03.
  9. d.o.o, Yu Media Group. "New Haven, CT - Detailed climate information and monthly weather forecast". Weather Atlas. Retrieved 2019-07-03.
  10. Sunshine & Daylight Hours in Barcelona, Spain - climatemps.com
  11. d.o.o, Yu Media Group. "Barcelona, Spain - Detailed climate information and monthly weather forecast". Weather Atlas. Retrieved 2019-07-03.
  12. "Weather2Travel.com: Barcelona Climate Guide". Retrieved 2011-06-16.
  13. http://www.weather2travel.com/climate-guides/united-kingdom/london.php
  14. http://www.weather2travel.com/climate-guides/russia-europe/moscow.php
  15. http://www.weather2travel.com/climate-guides/poland/warsaw.php
  16. "TETHYS". Tethys.cat. Retrieved 2009-05-22.
  17. "Barcelona es, o no, ciudad de nieves | Associació Catalana de Meteorologia". Acam.cat. Retrieved 2009-07-07.
  18. "Situacions extraodinaries | Associació Catalana de Meteorologia". Acam.cat. 1962-12-27. Retrieved 2009-05-22.
  19. Historical snowfall events in Barcelona. https://www.elnacional.cat/es/cultura/libro-fotografico-barcelona-nevada-historica_327138_102.html
  20. Barcelona Guide. http://www.guidebarcelona.net/snow-barcelona
  21. "Barcelona Can Bruixa - climate (1987-2010)" (PDF).
  22. "Valores Extremos for Barcelona" (pdf) (www version) – Agencia Estatal de Meteorología
  23. "Barcelona Can Bruixa - climate (1987-2010)" (PDF).
  24. "Extreme Temperature Reports: Barcelona Aeropuerto". Retrieved 19 December 2012.
  25. "Montgat". Geocities.com. Archived from the original on 2009-10-27. Retrieved 2009-05-22.
  26. Barcelona average sea temperature - seatemperature.org
  27. "Barcelona optará a los Juegos Olímpicos de Invierno 2022". Publico.es. Retrieved March 5, 2011.
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  30. Barcelona - Climatebase.ru
  31. "Standard Climate Values. Barcelona, Fabra". Retrieved 2018-03-09.
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  34. "ESP BARCELONA - EL PRAT DE LLOBREGAT".
  35. "ESP BARCELONA - MATARO".
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