Spain in August is two countries. The inland south bakes at 40 to 43 degrees, with nights above 27, and prices and crowds spike everywhere. But the Atlantic north stays at 20 to 25 degrees, and the Canaries cap out around 26. You can absolutely have a great August in Spain, as long as you pick the right region. Galicia and Asturias for the cool, inland south to avoid.
Spending August in Spain divides people. Some have the best summer of their life, others come home wrung out by the heat and the queues. The difference is not luck. It is where you set down your bags.
Here is what really awaits that month: the huge temperature gaps from one region to the next, the crowd peak, the cities to avoid and the ones that stay pleasant. With numbers, not generalities.
The August climate: three Spains
Talking about “the Spanish weather” in August makes no sense. The country splits into three very different zones, and the gap between them sometimes tops 18 degrees on the same day.
The inland south and centre: the furnace
Seville, Cordoba and Badajoz regularly approach 43 degrees in the middle of the day. Madrid, Zaragoza and Ciudad Real hover around 40. In summer 2025, a heatwave ran sixteen days straight, one of the longest measured since 1975. At night, the thermometer did not drop below 27 degrees in Madrid or Seville. The body does not recover.
The Mediterranean coasts: hot but liveable
On the Costa Brava, the Costa Dorada or the Costa del Sol, expect around 30 degrees in the afternoon and a sea at 24 to 25. The sea breeze changes everything. You cope with the day and enjoy the evenings. The flip side is the density of people on the shoreline.
The Atlantic north: the cool
Galicia, Asturias, Cantabria and the Basque Country live a different summer. The day sits between 20 and 25 degrees, cooled by the ocean. The water rarely passes 20, so swimming bites a little. It is August’s best-kept secret.
| Region | Day (August) | Our verdict |
|---|---|---|
| Seville, Cordoba (inland south) | 40-43 C | To avoid |
| Madrid, Extremadura (centre) | ~40 C | Tough |
| Costa Brava, Costa del Sol | ~30 C | Hot but OK |
| Galicia, Asturias, Cantabria | 20-25 C | ★ Ideal |
| Canary Islands | ~26 C | ★ Mild all year |
Crowds and prices
August is the peak tourist month of the year in Spain, with no rival. The Spanish themselves take their holidays that month, and all of Europe lands on the coasts at the same time.
Spain welcomed a record 96.8 million foreign visitors in 2025, and August concentrates a huge share. In practice, that means beaches where you wedge your towel in on the Costa del Sol or Ibiza, coastal restaurants full without a booking, and sites like the Alhambra or the Sagrada Familia whose slots go weeks ahead. If you have your heart set on a specific monument, lock its ticket before you even book your flights.
The first fortnight is the most stretched. Flights and accommodation climb hard, especially in the Balearics and on the Mediterranean coast. 15 August is a national holiday: roads jam, and driving that weekend is a sport in itself.
If your dates are flexible, shifting just two weeks towards late August already eases the pressure. For real savings, see our Spain on a budget guide.
- By mid-August, many inland towns empty of their residents, off to the coast or the village. In small Andalusian or Castilian towns, you will find neighbourhood shops, bars and even family restaurants closed “vacaciones” until September. Check the hours before you count on a specific address.
Where to go when it is 40 degrees
The good news: Spain offers real escapes from the heatwave. Here is where we send you.
- Galicia. Santiago de Compostela, the Rias Baixas, Vigo. Around 24 to 25 degrees, wild coves and some of the best seafood cooking in the country. Rain is still possible, even in August.
- Asturias. Cliffs, green mountains and the Picos de Europa within reach. Highs of 20 degrees on average. For those who want to hike without suffocating.
- The Basque Country. San Sebastian and its Concha beach, Bilbao and the Guggenheim. Mild climate, famous tables. Very popular, so book early.
- Cantabria. Santander, Atlantic beaches and stone villages. Less sought after than its neighbours, often at gentler prices.
- The Canaries. Around 26 degrees thanks to the trade winds, the northeast wind that keeps the air from stalling. Never stifling. Expensive and busy in August, but the heat stays comfortable throughout.
Where to avoid in August
Let us be straight: some star destinations become an ordeal in the middle of August.
Seville and Cordoba are magnificent, but visiting the Alcazar or the Mezquita at 43 degrees is an endurance test. You will last two or three hours in the morning, then need to shelter until evening. Keep inland Andalusia for the shoulder season. Our guide to visiting Andalusia covers the best periods.
Madrid suffers too: no sea to cool things, and part of the city away on holiday, so addresses closed. Extremadura (Merida, Caceres) sets heat records every summer. These are spring or autumn destinations, not August ones.
Festivals worth the trip in August
August may be scorching, but it is also a month of spectacular festivals. If you accept the crowds, some are worth the trip on their own.
- La Tomatina in Bunol, near Valencia, on the last Wednesday of the month (26 August in 2026): the biggest tomato fight in the world. Entry is now ticketed and numbers capped, so book well in advance.
- Semana Grande in Bilbao and San Sebastian, mid-August: concerts, fireworks and gastronomy in the Basque Country, under a mild climate. A fine way to combine festival and cool air.
- The Feria de Malaga, on the Costa del Sol: nine days of casetas, flamenco and music, day and night, with the sea on hand to cool off.
In every case, accommodation books up weeks ahead, and prices rise on site during the event.
Living well with the Spanish heat
If you do head to the south or the coast, fall in with the local rhythm. The Spanish do not fight the heat, they organise around it.
- Sightsee early or late. Monuments and walks before 11 am, then a shaded break in the afternoon, back out from 7 pm when the light turns golden. Cities come alive after dark.
- Adopt the siesta. Many shops shut between 2 and 5 pm. No point fighting it, that is the time to rest.
- Drink before you are thirsty. Keep a bottle on you. Public fountains are plentiful and the water is drinkable.
- Dine late. Dinner is around 9 pm, sometimes 10. It is the best time, in the cool, on a terrace.
- Inland south at 40 to 43 degrees: to avoid, unless you live by night and skip the afternoon.
- For the cool, head north: Galicia, Asturias, Cantabria, Basque Country, at 20 to 25 degrees.
- The Canaries stay at 26 degrees thanks to the trade winds, pleasant even at the height of summer.
- Book early: August is the price peak, especially the first fortnight and the 15th.
- Flexible dates? September offers the same warm sea with fewer people on the Mediterranean coast.
Connected in high season
In August, everything books and fills fast. A restaurant showing full, a timed museum slot, a last-minute train to flee a city that is too hot. Without a reliable connection, you lose those options in real time.
Spain is in the EU, so an EU plan works there with no surcharge, data included: for most travellers, nothing to plan. An eSIM for Spain helps in three cases. You lean hard on GPS and streaming and your Europe data allowance is tight. Your plan does not cover Europe. Or you chain Spain with a stop outside the EU. Activated before you leave, it connects you the moment you land on the 4G/5G network, at a fixed price.
With Orange, the service from a brand trusted by over 300 million customers, you travel with peace of mind: 200+ destinations covered, 24/7 human support, and a full refund if you never use your eSIM.
Heavy data use or a stop outside the EU after Spain? Keep your connection under control.
