Lisbon weather in August (Lisbon Region, Portugal)

This month is known as a warm month. The average maximum daytime temperature in Lisbon in August lies at 30.1°C (86.18°F). Usually it is the warmest month of the year. The average minimum temperature goes down to around 18.4°C (65.12°F) (often the minimum temperature is noted at night).

Rainfall during August is extremely low with an average of 5mm (0.2 inches). There are generally around 2 rainy days. It is also invariably a very sunny time of year with 350 hours of sun during the entire month.

 

Lisbon, monthly averages in August

Show in Fahrenheit

Min Temperature 18 °C  

Max Temperature 30 °C  

Chance of Rain 7%  

Precipitation 4mm  

Rainy days 2 days  

Sunshine 350 hrs *  

Percentage Sunshine 82% *  

Where to stay in Lisbon

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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 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So what to wear in August? Visitors traveling to Lisbon might want to wear airy clothing, t-shirts and other summer cloths. Shorts for men made of cotton or linen are good options for staying cool on a hot day.

What To Do

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

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Interested in more climate information?

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

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.