43°C heatwave to peak Sunday to Tuesday as second major episode hits Costa del Sol to Costa Blanca

From Sunday, July 5th, the second major heatwave will hit much of Spain. This will bring brand new orange-yellow weather alerts to warn of dangerous temperatures. The thermometer is expected to rise throughout the first days of the week. Forecasters predict the strongest conditions to occur between Sunday and Tuesday, with a gradual easing of temperatures later.

New alerts are issued for Sunday, Monday

It is important to note that the word “you” means “you”. State Meteorological Agency has activated special warnings For this new scorcher episode. Orange alerts will cover the regions of Cordoba, Huelva, Jaen and Sevilla from Sunday into Monday, with interior zones potentially reaching 42ºC or 43ºC. Cadiz, Granada and other regions will be under yellow warnings during the same time period. These warnings are active primarily from 1pm until 9pm. These alerts warn that there are high risks during central hours in affected provinces. It is therefore recommended to get things done in the morning.

Malaga falls outside of the most dangerous warnings. However, temperatures still rise a lot. Malaga City is forecast to rise from around 33ºC on Monday toward 38ºC by the end of the coming week, as seen during the first intense heatwave of summer 2026 in Malaga, Granada and Murcia. Interior areas such as Pizarra, an hour’s drive from the coast, may reach 41ºC by midweek, while Alora nears 40ºC. Overnight readings will stay uncomfortably high between 22ºC and 25ºC.

The Costa del Sol will see a strong upward trend starting Sunday. Daytime temperatures are expected to increase through the first week. Costa Tropical areas are under yellow alerts in Granada province are set for maxima near 39ºC in spots such as the Genil basin. Almeria will also experience stifling heat without any official warnings, as was predicted in previous forecasts of the summer 2026 heatwave.

Conditions in Murcia and Costa Blanca intensify

Murcia will see continued heat, particularly in interior valleys where readings may climb toward 39ºC to 41ºC during the peak window through until Tuesday. Costa Blanca is also experiencing similar pressure, particularly in the Valencian Community’s inland sections. Sea breezes may bring some relief to coastal stretches during the day. However, the temperature continues to rise with no cooling over night.

Mallorca will experience increasing heat starting Sunday, along with yellow alerts. AEMET, the state meteorological service, with inland areas expected to exceed 37ºC and in parts approaching 40ºC at times. The island sits under the influence of the same warm air mass, or ‘heat dome’ affecting the wider Mediterranean, bringing progressive daytime increases and persistently hot night-time temperatures and humidity.

National Picture and Outlook

Major river valleys across Spain, including the Ebro, Tajo, Guadiana and Guadalquivir, face the strongest readings, with 39ºC to 43ºC possible until Tuesday in places such as Badajoz, Cordoba and Zaragoza. Also, the northern regions such as parts of Galicia or the eastern Cantabrian coastline will warm up. The Canary Islands are due to see highs above 35ºC, reaching locally near 40ºC in Gran Canaria.

The firey episode is caused by a combination of a high pressure system, which is typical for July, and a low-pressure area to the west. This creates an air mass that’s very warm, dry, and dry. Forecasters have indicated some uncertainty regarding the exact duration of this heat wave, but temperatures will likely begin to drop gradually on Wednesday. However, they are expected to remain high in southern and central regions for most of the week. Wildfires are more likely to occur with the prolonged heat and drought.