🇪🇸Spain · Climate
Spain — Climate
Spain's six climate zones. Summer +40 in Seville, +23 in Oviedo. Heat waves, wildfire risk, the Canaries year-round, central heating notes. Q2 2026 figures.
Spain is not one climate but six. The gap between Seville at +36 in July and Oviedo at +23 is the same as Athens to London. This chapter walks the zones, the real city temperatures, the 21st-century heat waves and wildfire risk, and the regional habits that drive your housing budget and your health. Figures from for the period 2000-2024.
Spain's six climate zones
The most common mistake in choosing a Spanish region is reaching for the label "sunny Spain". In practice the country splits into six Köppen climate zones, each with its own temperature, rainfall and humidity regime.
- Mediterranean (Csa): Barcelona, Valencia, Alicante, Murcia, eastern Andalusia. Mild damp winter, hot dry summer. +25-30 in July, +5-12 in January. Rainfall 400-700 mm/year, concentrated in spring and autumn.
- Continental (Csa/Bsk): Madrid, Castile and León, Aragon, inland centre. Extreme: summer up to +40, winter with frosts overnight. Rainfall 300-500 mm. "Nine months of winter and three months of hell," as the Madrid saying goes.
- Atlantic (Cfb): Galicia, Asturias, Cantabria, the Basque Country. Cool maritime: mild winter +5-10, cool summer +20-25, heavy rainfall 1,000-1,800 mm/year. British-like, with a milder winter.
- Southern / South-Atlantic (Csa/Bsh): Seville, Córdoba, Cádiz, Huelva, inland Andalusia. Very hot summer with +45 records, mild winter +10-15. Rainfall 500-700 mm, concentrated in winter.
- Subtropical (Cfa/BWh): the Canary Islands. Steady year-round +18-27, rare rain. Tenerife, Gran Canaria, Lanzarote, Fuerteventura, La Palma.
- Mountain (Dfb/ET): Pyrenees (Huesca, Lleida, Girona), Sierra Nevada (Granada), Cantabrian Cordillera. Snow December to March, short cool summer. Ski resorts at Baqueira Beret, Sierra Nevada, Formigal.
The classification works at regional level, but sharp transitions inside one comunidad autónoma are common. Málaga and Granada both sit in Andalusia, yet Málaga is Mediterranean (+25 January water), while Granada, 100 km away in the mountains, has winter snow. San Sebastián and Pamplona, both in the Basque Country, run noticeably different annual averages. Pick the city, not the flag.
Summer: heat waves and +40 in the south
Spanish summer is the main climate filter for newcomers arriving from northern Europe. Average July maxima in major cities ( 2000-2024):
- Seville36 °C
- Madrid34 °C
- Málaga31 °C
- Valencia30 °C
- Barcelona29 °C
- Tenerife27 °C
- Bilbao25 °C
- Oviedo23 °C
- Seville and Córdoba: 36 °C average maximum, absolute records of +45-47 during a wave. Nights rarely drop below +22.
- Madrid: 34 °C, continental, +18-22 at night. The city's stone-and-concrete heat sink holds night minima above the suburbs.
- Málaga: 31 °C, sea breeze softens. Costa del Sol daytime +28-31, refreshing by sunset.
- Valencia: 30 °C, Mediterranean with high humidity, feels hotter than the absolute number.
- Barcelona: 29 °C, Mediterranean, but humidity at 70-80 % presses. Tropical nights (above +20 overnight) have been the rule since 2010.
- Bilbao: 25 °C, Atlantic, regular rain refreshes.
- Oviedo: 23 °C, cool north, a jacket in the evening is sometimes necessary.
Heat waves (ola de calor)
AEMET officially defines a heat wave as 3+ consecutive days above the 95th percentile for a region and season. Between 2010 and 2024 the average number of waves roughly doubled. In 2023 Spain had 4 official waves over 24 total days; the longest in August 2023 held Seville at +44 for 16 consecutive days.
Health risk. The main victims of heat waves are elderly people (65+) with cardiovascular conditions. The Spanish health ministry estimated excess mortality from the 2022 wave at 4,700 deaths. For families with small children AEMET recommends avoiding sun exposure between 12:00 and 17:00, wearing hats, drinking water every 30 minutes. For office workers, picking an employer with a real (not symbolic) AC in Seville or Córdoba is medical hygiene.
Climate projection. According to AEMET and Nature Climate Change (2024), by 2050 the number of days above +35 in Seville is projected to grow from 60 to 100 per year. In Madrid from 30 to 60. In the north (Bilbao, Oviedo) the rise is moderate, +10-15 days. This is part of the long-term regional choice.
Winter: +3 nights in Madrid, +15 in the Canaries
Spanish winter is the surprise for those who expected "eternal summer". On the inland plateaus (Castile and León, Madrid, Aragon) January arrives with overnight frosts and sharp winds. In the south the daytime +12-17 is bearable, but nights drop to +5-8, and without heating in a poorly insulated flat it feels colder than it reads.
- Madrid: average January max +10, min 3 °C, frost overnight 10-15 days a year. Snow once or twice a winter. Continental city climate with sharp transitions.
- Bilbao, Oviedo, Santander: +13 by day, +6-7 at night. Snow is rare, but damp cold and constant rain bite.
- Barcelona: +14-15 by day, +5-8 at night. Mild but humid.
- Valencia and Málaga: +17-18 by day, +8-10 at night. The mildest mainland winter.
- Seville and Córdoba: +17 by day, 5 °C at night. Paradoxically colder feeling than Málaga because there is no sea-side smoothing.
- Granada: close to the mountains, January -2 at night, +12 by day. A wholly different climate from Málaga 100 km away.
- Canaries: 15 °C at night, +21 by day. Winter does not exist.
Practical bottom line: on the inland plateaus and in Madrid, central heating (calefacción central, gas or electric) is essential, and most modern flats carry it. In the south and the Levante, heating is often missing entirely, or limited to individual electric heaters, which pushes the winter electricity bill to €200-300/month. See the Cost of Living chapter, utilities section.
Rainfall: from wet Galicia to dry Almería
Rainfall in Spain is distributed unevenly. The north-west corner (Galicia, Asturias, Cantabria) is one of the rainiest regions in Europe. The south-east corner (Almería, Murcia) is semi-desert, drier than Rabat in Morocco.
- Galicia (Santiago de Compostela, Vigo): 1500 mm/year. 180-200 rainy days/year. One of the wettest regions in Europe.
- Asturias, Cantabria, the Basque Country: 1,000-1,400 mm/year. Rain evenly spread, even summer is not dry.
- Catalonia (Barcelona): 600 mm/year. Concentrated in spring and autumn.
- Madrid: 430 mm/year. Long dry summers (July-August almost rainless).
- Valencia: 450 mm/year. Watch for autumn "gota fría", local cloudbursts that can deliver 200 mm in 6 hours.
- Seville, Málaga: 500-550 mm/year. Rain in winter and spring.
- Almería: 200 mm/year. The driest region in continental Europe. Cabo de Gata Natural Park is Europe's only true desert.
- Canaries: 100-300 mm/year on the eastern islands (Lanzarote, Fuerteventura), 300-700 mm on the western ones (La Palma, El Hierro) with sharp microclimates.
Drought is a chronic problem in the south and east. From 2022 to 2024 Catalonia, Andalusia and Murcia ran through severe droughts with water restrictions: bans on garden watering, pool filling, car washing. The Barcelona agglomeration declared an emergency water deficit in 2024 with a +200 % tariff on excess use. In Madrid, by contrast, no restrictions.
Wildfire risk and drought
Wildfires are the dominant inland seasonal hazard. Record 2022: 300000 hectares burned, three times the five-year average. Main hotspots: Galicia (especially Ourense province), Asturias, Extremadura, Sierra Nevada, Castile-La Mancha. Most fires start between July and September in the heat under dry winds.
publishes a daily fire-risk index (IFCD, Índice de Fuego Combinado Diario) per province in five categories: low (verde), medium (amarillo), high (naranja), very high (rojo), extreme (granate). On granate days some regions ban forest work, agricultural machinery, open fires and fireworks. Residents receive SMS alerts from the regional Protección Civil service.
What this means for rural or peri-urban residents. If you buy a house in the forested belt of Madrid (Las Rozas, Pozuelo, Colmenarejo) or in the Málaga sierras, additional costs apply: €300-600/year fire insurance on top of standard seguro de hogar, mandatory clearance (desbroce) of the 50 m perimeter from dry grass and brush, an evacuation plan. Andalusia introduced rules in 2025 requiring owners in high-risk zones (ZAR, Zonas de Alto Riesgo) to file an annual clearance certificate.
Outlook. Per IPCC and the Spanish ecology ministry, by 2050 the area exposed to high fire risk should grow by 30-40 %, particularly in Galicia (the paradox of a wet region that becomes flammable in a dry summer) and in mountainous forest belts. This does not mean "do not live in rural Spain", but it is a real factor in house purchases and insurance.
Sea and coastline
The Spanish coast divides into the Mediterranean and the Atlantic, and the difference goes beyond water temperature.
Mediterranean coast
Costa Brava (Catalonia), Costa Dorada (Tarragona), Costa del Azahar (Castellón, Valencia), Costa Blanca (Alicante, Murcia), Costa del Sol (Málaga), parts of Costa de la Luz (Cádiz), Costa Cálida. August water temperature 26 °C on Costa Brava, up to +28 on Costa del Sol. Winter +13-16. Warm calm sea, sand and pebble beaches, small waves. Comfortable swimming June through October.
Atlantic coast
Costa Vasca (Basque Country), Cantabria, Costa Verde (Asturias), Costa da Morte (Galicia), Costa de la Luz (Cádiz, Huelva). August water temperature 19 °C, cooler. Winter +12-14. Strong waves, oceanic tides of 2-4 metres, world-class surf beaches (Mundaka, Playa de la Zurriola). Swimming runs July through September for the acclimatised.
The Canary Islands are a separate Atlantic coast. Water stays at +18-23 year-round, breeze constant. Tenerife and Gran Canaria show a clear split between cooler wetter north and dry warm south (Los Cristianos, Maspalomas), the latter a tourist core.
Water quality is monitored by the Environment Ministry: Blue Flag marks safe beaches, with an annual report. In 2025 Spain held 638 Blue Flags, more than any other European country. Pollution is a local issue near river mouths and major ports (Santander, Alicante, parts of Las Palmas).
Canaries: subtropics all year
The Canary Islands form a separate climate world. The archipelago sits 100 km off the north-west African coast at 27-29° N. Temperature is steady year-round: January minimum 15 °C, July maximum 27 °C. Sunshine days 340, more than any other European region.
What is special. Seven major islands with very different microclimates. Tenerife and Gran Canaria, the largest and most populated, split sharply between a cooler wetter north (vineyards) and a sunnier drier south (the tourist resorts). Lanzarote and Fuerteventura, the driest and flattest, run closer to the African climate with calima sand storms blowing in from the Sahara. La Palma, El Hierro and La Gomera, smaller and greener, with laurel forest and hiking trails.
What grates. Calima is a periodic Saharan dust storm lasting 1-3 days, dropping visibility, pushing temperatures to +40 and causing problems for people with asthma. AEMET issues dedicated alerts. Earthquakes and volcanic activity are a real factor: the 2021 Cumbre Vieja eruption on La Palma destroyed 1,600 homes and buried farmland under ash. El Hierro saw an eruption in 2011. Tenerife and Gran Canaria are also volcanic, with long-term eruption risk.
The Canaries fit retirees on NLV coming from northern climates, remote workers on DN who value stable temperatures, and people with respiratory conditions (pollen counts are low). They do not fit those who want "real seasons", a capital-city urban texture, or the option to drive into continental Europe.
Indoors: central heating, air conditioning
Climate choice ties directly to housing infrastructure. Spanish flats were historically designed for summer: thick stone walls, small south-facing windows, shutters. Winter design was northern only. Two systemic problems follow.
Heating
In the north (Basque Country, Cantabria, Asturias, Galicia, Castile and León) and Madrid most modern buildings carry calefacción central, gas or electric central heating, typically active from 1 November to 15 April by Comunidad de Propietarios resolution. Older barrios (Lavapiés in Madrid, Gros in San Sebastián) often have individual gas boilers (calderas a gas natural). In the south (Andalusia, Murcia, Valencia) central heating is often absent; winter heating runs through individual electric radiators or AC in reverse mode (frío-calor). The bill follows: an 80 m² flat in Seville without heating can run €250-350/month on electricidad in winter.
Air conditioning
AC is mandatory in Andalusia, Extremadura, Murcia, Valencia, Castile-La Mancha and central Madrid. Since 2020 most new and renovated flats come with a split system already installed, and unconditioned rentals in southern cities drift to the bottom of the listings. Older central flats without AC need €600-1,500 for installation. On the coast and in the north (Bilbao, Santander, Oviedo) AC is not mandatory; sea breeze and cooler summers carry the load.
Energy certificate (Certificado de Eficiencia Energética). The A-G scale is mandatory at sale and lease. Most older Spanish flats land in E-G, which feeds bills and (from 2030 under EU energy law) will limit long-term letting without retrofit. This is a hidden cost of older stock over the next 5-10 years.
AEMET and warnings
(Agencia Estatal de Meteorología) is Spain's national weather service. The forecast at aemet.es refreshes every six hours; the El Tiempo de AEMET mobile app is free, available in Spanish, English, Catalan and Basque.
Colour-coded warnings (avisos meteorológicos):
- Verde: no risks.
- Amarillo: possible dangerous phenomena (heavy rain, heat, wind). Outdoor activity warrants attention.
- Naranja: significant risk. Schools may cancel classes, public events may be postponed.
- Rojo: extreme danger. Direct threat to life. Follow Protección Civil instructions.
Beyond the forecast AEMET publishes a daily UV index (UVI), the fire-risk index, and a pollen allergy index (March to June, relevant for olive, plane and grass-pollen allergies). Regional Protección Civil services mirror warnings through SMS to Spanish numbers tied to the empadronamiento address; this is free and on by default. A newcomer should install El Tiempo de AEMET immediately after arrival.
Frequently asked
Where is summer hottest in Spain?
Seville and Córdoba, in central Andalusia. July average maximum runs 36 °C, with regular heat waves and records of +45-47 °C. Inland Extremadura and Castile-La Mancha are nearly as hot, +35-38 on average. The coast (Málaga, Almería, Cádiz) runs 5-7 °C cooler thanks to sea breeze. The Canaries are stable at +27 °C without waves.
Where is it cool even in summer?
The north. Bilbao July average 25 °C, Oviedo 23 °C, Santander and A Coruña around +22-24. The Atlantic keeps the temperature in check: rain even in August is normal, +18 in a jacket. The Canaries stay steady at 27 °C all year. Mountain regions (Sierra Nevada, Pyrenees) are also cool, but that is a different way of life.
Do I need central heating in Spain?
In the north (Basque Country, Asturias, Cantabria, Galicia) and Madrid, yes: January minima drop to 0 °C overnight in damp cold. Most modern flats carry calefacción central. In the south (Seville, Málaga, Valencia) central heating is often absent; heating runs through individual electric radiators or AC in reverse mode. Night-time +5 in Seville without heating is the reality. Electricity bills push to €200-300/month.
What is the climate in the Canary Islands?
Subtropical and steady, 15-27 °C year-round. 340 sunshine days, more than any other European region. Rain is short and rare, humidity 60-70 %. Main complications: calima (Saharan dust storms 1-3 days at a time, +40 with poor visibility), volcanic activity (La Palma 2021, El Hierro 2011). Suits retirees, respiratory patients, remote workers who value stability.
Is wildfire risk rising in Spain?
Yes. In 2022 300000 hectares burned, a record year. Main risk areas: Galicia, Asturias, Extremadura, Sierra Nevada. publishes a daily fire-risk index (IFCD) by province on five levels (verde, amarillo, naranja, rojo, granate). On granate days forest work, open fires and fireworks are banned. Residents receive SMS alerts from Protección Civil. Houses in forested zones require annual perimeter clearance.
What is a heat wave (ola de calor)?
AEMET defines it as 3+ consecutive days above the 95th percentile for the given region and season. In 2023 Spain had 4 official waves over 24 total days. The main risk is to elderly people 65+ with cardiovascular conditions; the health ministry estimated excess mortality from the 2022 wave at 4,700 deaths. Recommendations: avoid sun 12:00-17:00, run AC, drink water every 30 minutes, sleep without heating. For long-term residence in southern Andalusia this is a real factor.
Verified · 2026-04-15