Portugal in August: Peak Summer, Festivals and Tips

August is the height of summer in Portugal: the hottest weather, the warmest seas, festivals in every village, and the whole country on holiday. It’s fantastic for beach life, but also the busiest and most expensive month. Here’s what to expect.

Quick answer: expect highs of 28–30°C on the coast and 35–40°C+ inland. The Algarve sea reaches about 22–23°C. Highlights: village festivals, the Silves Medieval Fair, the Romaria d’Agonia in Viana do Castelo, Portimão’s Sardine Festival and beach days everywhere. Book months ahead and expect crowds on the Algarve.

Weather

• Lisbon: highs around 29–30°C, with heatwaves possible.
• Porto: around 25°C, often with morning sea mist.
• The Algarve: around 29–30°C, with the warmest sea of the year.
• Inland: very hot, often over 38°C.

What’s on

• Silves Medieval Fair (early to mid-August). See Silves.
• Romaria d’Agonia, Viana do Castelo (mid-August). See Viana.
• Sardine Festival, Portimão (early August). See Portimão.
• 15 August: Assumption Day, with processions, including Albufeira’s sea procession.
• Village festas: almost every town has a summer festival with music, food and fireworks.

Where to go

• The beaches: the Algarve, the Costa Vicentina, Comporta and the Silver Coast. See the best beaches in Portugal.
• Cooler options: Porto and the Minho, the Azores, Madeira and Peneda-Gerês.
• Quieter beaches: the Costa Vicentina and the Alentejo coast. See Costa Vicentina.

Tips

• Book early: August is peak Portuguese holiday time, and prices are highest.
• Beat the crowds: go to the beach early or late, and sightsee in the morning.
• Heat and fire safety: drink plenty of water, avoid the midday sun and follow wildfire warnings inland.
• Car parks fill up at popular beaches like Marinha by mid-morning.

More: July, September and Portugal in summer.

Prices and details change, so please double-check before you travel. Spotted something out of date? Tell us in the groups.