Spain contains five distinct climate zones distributed across the Iberian Peninsula, Balearic Islands, and Canary Islands, controlled by latitude, Atlantic proximity, Mediterranean exposure, and elevation. The Meseta Central experiences continental conditions with temperature swings exceeding 40 degrees Celsius between winter and summer extremes. Coastal regions divide between Atlantic maritime influence along the Bay of Biscay and Mediterranean patterns governing the Costa del Sol, Costa Brava, and Balearic Islands. The Canary Islands operate under subtropical desert and Mediterranean microclimates modified by trade winds and ocean currents. Mountain systems including the Pyrenees, Cantabrian Mountains, and Sierra Nevada create vertical climate stratification with alpine conditions above 2500 meters regardless of regional baseline.
January delivers the coldest conditions across the mainland. Madrid records average daily minimums near 2 degrees Celsius with occasional frost and rare snowfall totaling under 10 centimeters annually. The Meseta Central experiences daytime highs around 9 degrees under persistent cloud cover and drizzle accumulating 40 millimeters monthly. Barcelona maintains milder temperatures with 13-degree highs and 4-degree lows, receiving 40 millimeters primarily from Atlantic fronts crossing the peninsula. The Bay of Biscay coast including Bilbao and San Sebastián logs 130 millimeters across 15 rain days with persistent overcast skies and temperatures between 8 and 14 degrees. Sevilla and the Guadalquivir River valley record 11-degree minimums and 16-degree maximums with 95 millimeters of rainfall concentrated in multi-day events. The Sierra Nevada receives peak snowfall in January with accumulations exceeding 2 meters above 2500 meters, supporting ski operations through April. Mulhacén holds snowpack through June at 3479 meters elevation. The Canary Islands maintain 15-degree lows and 21-degree highs with minimal precipitation under 25 millimeters monthly, though Teide National Park on Tenerife records occasional snow above 2000 meters.
February continues wet patterns along the Atlantic corridor while Mediterranean regions begin drying. Galicia including Santiago de Compostela receives 120 millimeters across 16 days with temperatures rising marginally to 10-degree minimums and 14-degree highs. The Cantabrian Mountains log 150 millimeters at elevation with snow accumulation sustaining Picos de Europa National Park winter access restrictions through month-end. Madrid warms slightly to 3-degree lows and 12-degree highs with precipitation dropping to 35 millimeters. Valencia experiences the first extended dry spells with only 30 millimeters monthly and daytime temperatures reaching 17 degrees under increasing sunshine. Málaga on the Costa del Sol records 13-degree minimums and 17-degree maximums with 80 millimeters of rain, though dry days increase through the month. The Balearic Islands register similar patterns with 35 millimeters and 16-degree averages. Almería in southeast Andalusia receives under 20 millimeters, establishing the driest February conditions on the mainland. The Ebro River valley around Zaragoza experiences cold northwesterly winds with temperatures between 3 and 13 degrees and 25 millimeters of precipitation.
March marks the transition from winter rainfall dominance to spring warming. The Meseta Central records 5-degree minimums and 16-degree maximums as anticyclonic ridges build from the south. Precipitation decreases to 25 millimeters in Madrid while Toledo experiences similar conditions with occasional dust intrusions from North Africa creating hazy skies. Barcelona warms to 8-degree lows and 16-degree highs with rainfall dropping to 45 millimeters as Mediterranean high pressure strengthens. The Costa Brava begins beach season preparation though water temperatures remain near 13 degrees. Sevilla records the first 20-degree days with minimums around 9 degrees and 50 millimeters of rain concentrated early month. Córdoba along the Guadalquivir experiences identical patterns with almond blossoms peaking mid-month. The Bay of Biscay maintains 100 millimeters monthly but cloud cover decreases to 60 percent of daylight hours. San Sebastián records 9-degree minimums and 15-degree highs with northwest Atlantic swells sustaining surf conditions. The Pyrenees hold 1.5-meter snowpack above 2000 meters while Ordesa y Monte Perdido National Park begins transitional access opening lower elevations. The Canary Islands warm to 17-degree lows and 22-degree highs with under 15 millimeters precipitation and daily sunshine exceeding 8 hours.
April establishes spring across Mediterranean and southern regions while Atlantic areas lag by three weeks. Valencia experiences 11-degree minimums and 20-degree maximums with only 35 millimeters of rain and sunshine duration exceeding 9 hours daily. Alicante receives under 30 millimeters while water temperatures rise to 16 degrees, initiating coastal tourism activity. Granada records 8-degree lows and 20-degree highs as Sierra Nevada snowmelt begins feeding Guadalquivir tributaries. The Alhambra gardens reach peak spring flowering with wisteria and jasmine blooming through early May. Madrid warms to 7-degree minimums and 18-degree maximums with precipitation holding near 45 millimeters, though intensity decreases to brief afternoon showers. Salamanca experiences similar continental patterns with pronounced diurnal temperature variation reaching 15 degrees between night and day. Barcelona records 11-degree lows and 18-degree highs with rainfall decreasing to 50 millimeters and Mediterranean water temperatures rising to 15 degrees. The Balearic Islands transition fully into tourism season with 13-degree minimums, 20-degree maximums, and under 40 millimeters monthly precipitation. Bilbao maintains 8-degree lows and 17-degree highs with 90 millimeters of rain as Atlantic fronts weaken. The Strait of Gibraltar experiences increasing Levante easterly winds averaging 25 kilometers per hour, creating challenging crossing conditions for marine traffic between Algeciras and North Africa.
May delivers the first summer conditions across southern and eastern Spain. Sevilla records 13-degree minimums and 26-degree maximums with precipitation dropping to 35 millimeters, though occasional thunderstorms produce localized flooding in the Guadalquivir valley. Málaga experiences 15-degree lows and 24-degree highs with only 25 millimeters of rain and water temperatures reaching 18 degrees. The Costa del Sol initiates full beach season with daily sunshine exceeding 10 hours. Murcia reaches 28-degree afternoon peaks with under 25 millimeters monthly precipitation, establishing the driest May conditions on mainland Spain. Valencia records 14-degree minimums and 23-degree maximums with 35 millimeters of rain and Mediterranean water temperatures at 18 degrees supporting extended swimming. Barcelona warms to 14-degree lows and 21-degree highs with rainfall at 60 millimeters, the annual maximum for the city. Madrid experiences 10-degree minimums and 21-degree maximums with 50 millimeters of precipitation including occasional hail from convective development over the Meseta Central. The Pyrenees retain snowpack above 2500 meters though Aigüestortes i Estany de Sant Maurici National Park opens all hiking routes by month-end. San Sebastián records 11-degree lows and 19-degree highs with 85 millimeters of rain and Bay of Biscay water temperatures at 15 degrees. Galicia maintains 10-degree minimums and 18-degree maximums with 80 millimeters monthly as Atlantic influence persists. The Canary Islands warm to 18-degree lows and 24-degree highs with under 5 millimeters precipitation and trade winds moderating afternoon heat.
June establishes summer dominance across the peninsula except northern coastal areas. Sevilla records 18-degree minimums and 32-degree maximums with precipitation dropping to 10 millimeters confined to isolated thunderstorms. Córdoba experiences nearly identical patterns with the Mezquita-Cathedral reporting visitor access restrictions during afternoon heat peaks above 35 degrees. Granada climbs to 15-degree lows and 30-degree highs as Sierra Nevada National Park snowpack retreats above 3000 meters on Mulhacén. Madrid records 14-degree minimums and 27-degree maximums with only 25 millimeters of rain and humidity below 40 percent during afternoon hours. Zaragoza experiences extreme diurnal variation with 13-degree lows and 28-degree highs under dominant high pressure and Ebro River flows decreasing 30 percent from spring peaks. Barcelona warms to 18-degree lows and 25-degree highs with rainfall at 40 millimeters and Mediterranean water temperatures reaching 21 degrees. The Costa Brava records maximum beach occupancy with daily sunshine exceeding 11 hours. Valencia maintains 17-degree minimums and 26-degree maximums with under 25 millimeters precipitation and sea temperatures at 22 degrees. Alicante receives under 15 millimeters making June one of three annual drought months. Málaga climbs to 19-degree lows and 28-degree highs with negligible rainfall and Costa del Sol water temperatures at 20 degrees. Bilbao records 13-degree minimums and 22-degree highs with 65 millimeters of rain decreasing from May levels. San Sebastián experiences similar Atlantic moderation with persistent morning cloud cover burning off by midday. Santiago de Compostela logs 12-degree lows and 22-degree highs with 45 millimeters as Camino de Santiago pilgrimage traffic peaks through July. The Balearic Islands reach 18-degree minimums and 27-degree maximums with under 15 millimeters monthly precipitation and water temperatures at 23 degrees supporting peak tourism. The Canary Islands maintain steady 19-degree lows and 25-degree highs with trade winds creating 5-degree cooler conditions on northern coasts versus southern exposures.
July delivers maximum heat across interior and southern regions. Sevilla records 21-degree minimums and 36-degree maximums with zero measurable precipitation through the month. Afternoon temperatures exceed 40 degrees on 8 to 12 days annually with the historical maximum reaching 47 degrees in 1995. Córdoba experiences identical extremes with the Guadalquivir River flows reduced 50 percent from winter levels. Granada climbs to 18-degree lows and 34-degree highs while Alhambra visitor access opens at 0800 hours to avoid afternoon heat. Madrid records 17-degree minimums and 31-degree maximums with under 10 millimeters of rain falling during brief nocturnal thunderstorms over the Meseta Central. Toledo experiences 16-degree lows and 33-degree highs with humidity below 25 percent during afternoon hours creating elevated wildfire risk in surrounding scrubland. Zaragoza reaches 18-degree minimums and 31-degree maximums with negligible precipitation and Ebro River levels requiring irrigation restrictions for agriculture. Barcelona maintains 21-degree lows and 28-degree highs with only 20 millimeters of rain and Mediterranean water temperatures peaking at 25 degrees. The Costa Brava records maximum tourism occupancy with beach access requiring early arrival by 1000 hours. Valencia climbs to 21-degree minimums and 29-degree maximums with under 10 millimeters monthly precipitation and sea temperatures at 26 degrees. Alicante receives zero measurable rainfall making July the driest month with 23-degree lows and 31-degree highs. Málaga records 22-degree minimums and 30-degree maximums with negligible precipitation and Costa del Sol water temperatures at 23 degrees. Almería experiences the most extreme aridity with zero rainfall, 22-degree lows, and 31-degree highs under Saharan air mass influence. Bilbao maintains 15-degree minimums and 25-degree maximums with 50 millimeters of rain, the annual minimum for the Bay of Biscay coast. San Sebastián records similar patterns with water temperatures reaching 21 degrees, the annual maximum. The Pyrenees lose all snowpack below 3000 meters while Ordesa y Monte Perdido National Park experiences peak hiking traffic with daily entries exceeding 2000 visitors. The Canary Islands hold steady at 20-degree lows and 27-degree highs with trade winds maintaining comfortable conditions and water temperatures at 22 degrees.
August continues peak summer heat with minimal regional variation from July. Sevilla maintains 21-degree minimums and 36-degree maximums with zero precipitation and afternoon humidity below 30 percent. The Guadalquivir River reaches annual minimum flow reducing navigation depth by 40 percent. Madrid records 17-degree lows and 31-degree highs with under 10 millimeters of rain from isolated convective cells. Salamanca experiences 15-degree minimums and 29-degree maximums with similar drought conditions across the Meseta Central. Barcelona holds at 21-degree lows and 28-degree highs with 40 millimeters of precipitation from occasional Mediterranean thunderstorms producing intense rainfall rates exceeding 30 millimeters per hour. Valencia records 22-degree minimums and 30-degree maximums with 20 millimeters monthly and sea temperatures holding at 26 degrees. Alicante maintains 24-degree lows and 31-degree highs with negligible rainfall making August the second driest month. Murcia experiences extreme heat with afternoon peaks reaching 38 degrees and zero measurable precipitation through the month. Granada climbs to 19-degree lows and 34-degree highs as Sierra Nevada streams fed by residual snowmelt support irrigation in the vega lowlands. Málaga records 23-degree minimums and 30-degree maximums with zero rainfall and Costa del Sol beach occupancy at maximum capacity. Bilbao warms slightly to 16-degree lows and 26-degree highs with 90 millimeters of rain increasing from July as Atlantic fronts strengthen. San Sebastián experiences identical patterns with Bay of Biscay water temperatures holding at 21 degrees. Santiago de Compostela logs 14-degree minimums and 25-degree maximums with 35 millimeters as Camino de Santiago traffic begins declining from peak. The Balearic Islands maintain 21-degree lows and 29-degree highs with under 30 millimeters precipitation and water temperatures at 26 degrees. The Canary Islands hold steady at 21-degree minimums and 28-degree maximums with trade winds creating persistent afternoon cloud development on northern slopes while southern coasts remain clear. Teide National Park records 12-degree lows at 2000-meter elevation with daytime highs at 22 degrees creating optimal hiking conditions.
September initiates autumn transition across northern regions while Mediterranean areas retain summer heat. Sevilla records 18-degree minimums and 32-degree maximums with 20 millimeters of rain from the first Atlantic fronts penetrating inland. Córdoba experiences similar warming retreat with afternoon temperatures decreasing 4 degrees from August peaks. Madrid cools to 13-degree lows and 26-degree highs with 25 millimeters of precipitation from convective development. Toledo records 12-degree minimums and 26-degree maximums as Meseta Central diurnal variation increases to 14-degree swings. Barcelona maintains 18-degree lows and 25-degree highs with 85 millimeters of rain, the second annual maximum, from Mediterranean low-pressure systems producing multi-day events. Valencia records 18-degree minimums and 27-degree maximums with 70 millimeters including occasional intense thunderstorms delivering 50 millimeters in under 3 hours. Alicante receives 40 millimeters, the monthly maximum, from Mediterranean convection with water temperatures holding at 25 degrees. Málaga cools slightly to 19-degree lows and 27-degree highs with 15 millimeters of rain and Costa del Sol tourism extending through month-end. Granada records 14-degree minimums and 28-degree maximums as Sierra Nevada receives first snowfall above 3000 meters late month. Bilbao cools to 14-degree lows and 24-degree highs with 90 millimeters of rain and Atlantic swells increasing. San Sebastián experiences 13-degree minimums and 23-degree maximums with similar precipitation patterns. The Cantabrian Mountains receive 120 millimeters at elevation initiating autumn mushroom season in Picos de Europa National Park. The Balearic Islands maintain 18-degree lows and 27-degree highs with 55 millimeters of rain from Mediterranean systems and water temperatures at 24 degrees. The Canary Islands hold at 21-degree minimums and 27-degree maximums with under 10 millimeters precipitation and trade winds moderating through the month.