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Weather in Cascais
Elegant Atlantic resort town near Lisbon
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About Cascais
Cascais is elegant Atlantic escapism from Lisbon—the waterfront promenade exudes Riviera glamour, the beaches are sandy and accessible, the nearby cliffs offer dramatic coastal walks. This is where Lisbon's wealthy play when they need sea air.
Best months to visit
May, June, July, August, September
Things to do in Cascais
Beach relax at Praia da Ribeira or Praia de Cascais
Walk the waterfront promenade lined with restaurants
Hike to nearby Cabo da Roca (Europe's westernmost point)
Visit the Citadel fortress overlooking the harbour
Explore Estoril's elegant buildings and casino
Browse galleries and boutiques near the waterfront
Weather by month
Click any month for detailed weather information and travel tips.
January
15C
Cool, with some rainy days.
February
15C
Cool, with occasional showers.
March
16C
Cool, with occasional showers.
April
17C
Cool, with some rainy days.
Recommended
May
20C
Mild and comfortable, with occasional showers.
Recommended
June
21C
Mild and comfortable, with occasional showers.
Recommended
July
23C
Mild and comfortable, and mostly sunny skies.
Recommended
August
23C
Mild and comfortable, and mostly sunny skies.
Recommended
September
23C
Mild and comfortable, with occasional showers.
October
21C
Mild and comfortable, with some rainy days.
November
17C
Cool, with some rainy days.
December
16C
Cool, with some rainy days.
Cascais is where Lisbon goes for the weekend — a former fishing village turned elegant seaside resort, with sandy beaches, a marina full of yachts, and a coastal path leading to Boca do Inferno's crashing surf. It's relaxed and walkable in a way Lisbon sometimes isn't, with the added bonus of being just a scenic train ride along the coast from the capital.
Best areas to stay in Cascais
Cascais Old Town
Cobbled streets, boutiques and seafood restaurants close to the marina and main town beaches.
Marina de Cascais
A modern marina area with bars, restaurants and yacht-watching.
Boca do Inferno
A rugged coastal stretch with dramatic cliffs and sea arches, a short walk from town.
Guincho Beach
A wide Atlantic beach popular with surfers and windsurfers, a short drive or cycle from central Cascais.
Getting to Cascais
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Flights
Lisbon Airport is the gateway, around 30-40 minutes from Cascais by car, or reachable via central Lisbon by train.
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From London
~2.5 hours by air from London to Lisbon, plus a short onward journey.
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Getting around
The train from Lisbon (Cais do Sodré line) runs directly to Cascais; the town itself is compact and walkable, with bike rental for the coast.
Frequently asked questions
When is the best time to visit Cascais?
May to September offers the warmest weather for the beaches, though the town is pleasant for walking and dining year-round given its mild climate.
Is Cascais a good day trip from Lisbon?
Yes — the train from Lisbon's Cais do Sodré takes about 40 minutes and runs along the coast, making it an easy and scenic day trip or alternative base.
What is Boca do Inferno?
A dramatic rocky chasm where the Atlantic crashes through eroded cliffs, located a short walk or bike ride from central Cascais.
Are the beaches in Cascais good for swimming?
The town beaches are popular and family-friendly, though the Atlantic water is cool; nearby Guincho beach is better known for surfing due to stronger waves and wind.
Can I cycle along the coast from Cascais?
Yes — a coastal cycle path runs from Cascais towards Guincho and beyond, with bike rental widely available.
Traveler reviews
★★★★★
Took the train out from Lisbon for the day and ended up wishing we'd stayed longer — lovely beaches, a charming old town and great seafood.
Tessa W. · July 2024
★★★★☆
Cycled along the coast to Guincho beach, which was windy but spectacular. Boca do Inferno is worth the short detour too.
Bruno A. · May 2023
★★★★★
Stayed in Cascais instead of Lisbon and commuted in by train when needed — much calmer in the evenings with a real seaside feel.
Grace P. · September 2024
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