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Cascais

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Travel Info
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Travel Info

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Cascais Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Cascais year round climate

  • Spring (March–May): Average 57–64°F, mild and comfortable climate. Rainfall decreases gradually from March to May, with plenty of sunshine. Popular activities: Coastal walks, outdoor picnics, visiting Cascais Old Town. Recommended clothing: Light jacket, long-sleeved shirts, comfortable shoes.
  • Summer (June–August): Average 67–71°F, hot and dry climate, especially in July and August with minimal rainfall. Popular activities: Swimming, sunbathing, water sports, exploring the nearby Sintra mountains. Recommended clothing: Light and breathable clothing, hat, sunglasses, sunscreen.
  • Autumn (September–November): Average 61–68°F, pleasant climate, but rainfall increases gradually, especially in October. Popular activities: Visiting Cascais beaches, enjoying local seafood, admiring the autumn scenery. Recommended clothing: Comfortable long-sleeved shirts, light jacket, warm clothing.
  • Winter (December–February): Average 55–56°F, mild climate, but with more rainfall, especially in December. Popular activities: Exploring Cascais indoor attractions, enjoying the warm atmosphere of cafes. Recommended clothing: Warm jacket, scarf, gloves.

Cascais climatological average

Annual average temperature: approx. 63.0°F / Annual rainfall: approx. 628 mm / Summer humidity: 60%–70% / Rainiest month: December

Cascais monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
55°F
67.2
February
56.5°F
51.5
March
57.6°F
100.3
April
61.3°F
36.6
May
64.9°F
6
June
67.5°F
26
July
71.2°F
4.6
August
70.3°F
0.1
September
68°F
53.5
October
66.7°F
106.7
November
61.3°F
68.4
December
55.8°F
108

Cascais weather for the next seven days

6/11
Thursday
Sunny
72.3°F/61.8°F
6/12
Friday
Sunny
73.2°F/64.3°F
6/13
Saturday
Sunny
77.1°F/66.6°F
6/14
Sunday
Partly Cloudy
69.2°F/64.4°F
6/15
Monday
Sunny
69.9°F/63.6°F
6/16
Tuesday
Sunny
69.2°F/63°F
6/17
Wednesday
Sunny
70.2°F/63.5°F

Cascais Frequently Asked Questions and Useful Information for Travel

Why is Cascais famous?

Cascais is famous for its beautiful beaches and natural landscapes, historic architecture from its past as a royal summer retreat, and its rich seafood, particularly grilled fish and seafood rice. It's a popular, upscale resort town with a sophisticated atmosphere, considered the "Portuguese Riviera," blending traditional charm with modern amenities like restaurants, bars, and marinas.

How do you pronounce Cascais?

Cascais is pronounced Kash-KAYS in English, with the emphasis on the second syllable and a soft "sh" sound at the end, similar to the European Portuguese pronunciation. The initial "C" is a hard "k" sound, and the "ai" in the second syllable is like the English word "ays" or "eyes".

Is Cascais worth visiting?

Yes, Cascais is worth visiting for its beautiful beaches, historic old town, coastal views, and easy day trip access from Lisbon via a scenic train ride. It offers a charming blend of relaxing beach time, sightseeing, cultural experiences like museums and art districts, and a wide selection of restaurants and shops.

What is the best time of year to visit Cascais?

The best time to visit Cascais depends on your preference for crowds and heat, but generally, late spring (May to June) and early autumn (September) are considered ideal, offering pleasant weather, fewer tourists, and a balance between a beach and town-exploring experience. Summer (July and August) is hottest and busiest, while winter (November to February) is the quietest but with cooler, potentially wet weather.

What are the key attractions in Cascais?

Key attractions in Cascais include its stunning coastal scenery with beautiful beaches like Guincho and Tamariz, nearby natural parks, and the historic old town with its grand 19th-century villas. Visitors also enjoy exploring the Cidadela Art District and the picturesque waterfront.