Spain weather forecast: Record warm Mediterranean & Heat Dome bring midsummer feel for June’s arrival

High pressure associated with the current heat dome continues to dominate conditions across the Mediterranean coastal belt in Spain for the weekend ahead. Coastal Spain from the Costa del Sol to the Costa Blanca and Mallorca will experience continued midsummer-like warmth, according to AEMET, the state meteorological service. Abnormally high sea surface temperatures are set to add even more intensity to the Spanish heat wave and limit overnight relief.

Unprecedented Mediterranean sea temperatures increase the warmth

Sea temperatures around the Spanish Mediterranean coast and Balearic Islands are now at levels never recorded for late May since at least 1940, according to AEMET data. Readings in the Balearic Sea near Mallorca reach 25.5°C at some buoys, while areas off Valencia are registering 23°C and near Cabo de Palos stand at 22°C. These values run 3 to 5°C above seasonal averages. Such warmth reduces the cooling effect of sea breezes and promotes a feel of more frequent tropical nights across coastal communities and nearby inland spots. Humidity levels stay high as a result and contribute directly to the muggy feel.

Peak daytime temperatures and increasing night-time warmth expected

Daytime temperatures climb to their highest points over the weekend, with Vega Baja zones touching 37°C at the peak of this phase on Saturday. Coastal stretches from Murcia to Malaga register strong values, while the hot sea influence keeps direct shoreline spots a touch lower than immediate inland spots. Night-time temperatures are showing steady increases day by day and delivering limited recovery from the daytime heat.

Slight moderation followed by renewed heat

A modest easing arrives briefly by Sunday, 31 May, with light showers possible mainly in inland Almeria areas and patchy cloud drifting across coastal belts including Mallorca. Daytime highs settle at around 36°C in Murcia and 30°C in Malaga during this interval. Conditions stay mostly dry in all areas. Temperatures then climb again approaching the transition into June.

After that, a sweltering heatwave looks set to take hold across the entire corridor in the opening days of the month. So, keep hydrated, as already in recent weeks over 30 deaths have already been attributed to the unusually hot weather for the time of year, in Spain. Take advantage of the early summer, as a hot Mediterranean Sea signals impending summer storms later on .