Cascais weather in August (Lisbon Region, Portugal)

Looking to travel to Cascais in August? Check out this comprehensive weather guide.

In Cascais the weather in August is generally perfect, characterized by high temperatures and low rainfall. Anticipate daytime temperatures around 22°C, while night temperatures can drop to 18°C. On average, it has the peak temperatures of the year.

Cascais in August usually receives low rainfall, averaging around 5 mm for the month. Rain is expected on roughly 2 days.

The city usually sees around 355 hours of sunlight, indicating many sunny days.

If you favor pleasant temperatures and minimal rainfall, August is one of the better months to visit Cascais. June, July, August, September and October typically offer the most agreeable circumstances. On the other hand, January, February, March, April and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Cascais climate page with graphs.

 

Cascais, monthly averages in August

Min Temperature 18°C  

Max Temperature 22°C  

Chance of Rain 7%  

Precipitation 5 mm  

Rainy days 2 days  

Humidity 73%  

Sunshine 355 hours  

Percentage Sunshine 84%  

Where to go in Portugal in August

Find out more about the weather in Portugal in August and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Cascais in August?

For visitors traveling to Cascais, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in August.

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

10/10

Outdoor sports

10/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Cascais.

Our site offers climate and forecast data for every country in the world. Are you going to Portugal? On this website you can find historical weather averages for many cities in Portugal. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.