Sintra

Lisbon Region Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Lisbon Region, Portugal in August.

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Lisbon Cascais Ericeira Sintra

Planning a getaway to Lisbon Region, Portugal this August and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Lisbon Region in August

Lisbon Region, Portugal is a region in Portugal. In August, Lisbon Region experiences a range of weather conditions, with temperatures that range from pleasant to very warm and low precipitation. During August, summer is in full swing.

Temperatures

During the day the temperature is pleasant in Azoia at 21°C (70°F) and very warm in Canha at 33°C (91°F). As night falls, temperatures generally drop to 17°C (63°F) in Canha and 18°C (64°F) in Azoia. In Lisbon Region, Portugal, August typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

For specific regional insights in Lisbon Region, Portugal, refer to the map provided below.

Precipitation

August is a dry month with an average rainfall of around 5.7 mm (0.2 in) in Lisbon.

Average sunshine

Sunshine is generally plentiful throughout many areas. Lisbon enjoys about 350 hours of sunlight, ideal for those seeking sunny weather.

Explore Lisbon Region by month

Pick a month to see the average temperature, rainfall and sunshine in Lisbon Region — and find the best time to visit. (based on Lisbon)

January15°C (59°F) February16°C (61°F) March18°C (64°F) April19°C (66°F) May22°C (72°F) June25°C (77°F) This monthJuly27°C (81°F) August27°C (81°F) September25°C (77°F) October22°C (72°F) November18°C (64°F) December16°C (61°F)
Best Time to Visit Lisbon Region →

Best Places to Visit in Lisbon Region in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Lisbon Region.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Lisbon Region

What is the weather like in August for some of the most popular destinations in Lisbon Region, Portugal?

Temperature range in Lisbon Region (August)

Precipitation variation in Lisbon Region (August)

Lisbon

In August Lisbon generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 18°C (64°F) and low monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
27°C (81°F)
27°C (81°F)
25°C (77°F)
Min temperature
18°C (64°F)
18°C (64°F)
17°C (63°F)
Monthly sun hours
352 hours
350 hours
280 hours
Monthly rainfall
3.5 mm (0.1 in)
5.7 mm (0.2 in)
32 mm (1.3 in)
Monthly rainy days
2 days
2 days
6 days
Weather conditions
perfect
perfect
perfect
Climate in Lisbon →

Cascais

In August Cascais generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 18°C (64°F) and low monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
22°C (72°F)
22°C (72°F)
22°C (72°F)
Min temperature
18°C (64°F)
18°C (64°F)
18°C (64°F)
Monthly sun hours
385 hours
355 hours
278 hours
Monthly rainfall
3.1 mm (0.1 in)
5 mm (0.2 in)
31 mm (1.2 in)
Monthly rainy days
2 days
2 days
6 days
Weather conditions
perfect
perfect
perfect
Climate in Cascais →

Ericeira

In August Ericeira generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 18°C (64°F) and low monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
22°C (72°F)
23°C (73°F)
22°C (72°F)
Min temperature
18°C (64°F)
18°C (64°F)
18°C (64°F)
Monthly sun hours
385 hours
355 hours
278 hours
Monthly rainfall
5 mm (0.2 in)
6.9 mm (0.3 in)
32 mm (1.3 in)
Monthly rainy days
3 days
2 days
6 days
Weather conditions
perfect
perfect
perfect
Climate in Ericeira →

Sintra

In August Sintra generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 18°C (64°F) and low monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
23°C (73°F)
23°C (73°F)
23°C (73°F)
Min temperature
18°C (64°F)
18°C (64°F)
18°C (64°F)
Monthly sun hours
385 hours
355 hours
278 hours
Monthly rainfall
3.7 mm (0.1 in)
5.7 mm (0.2 in)
32 mm (1.3 in)
Monthly rainy days
2 days
2 days
6 days
Weather conditions
perfect
perfect
perfect
Climate in Sintra →

Sesimbra

In August Sesimbra generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 19°C (66°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
24°C (75°F)
24°C (75°F)
23°C (73°F)
Min temperature
18°C (64°F)
19°C (66°F)
18°C (64°F)
Monthly sun hours
352 hours
350 hours
280 hours
Monthly rainfall
2.7 mm (0.1 in)
4.2 mm (0.2 in)
29 mm (1.1 in)
Monthly rainy days
2 days
2 days
5 days
Weather conditions
perfect
perfect
perfect
Climate in Sesimbra →

Is your destination not in the list? Have a look at all destinations in Lisbon Region, in Portugal.

In our records: Portugal August extremes

Notable August records observed across cities in Portugal in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest August day in Portugal reached 45°C (113°F) in Évora on August 4, 2018.

Popular cities in August

Day & night temperatures, rainfall and average weather in Lisbon Region in August.

City Weather Day temp Night temp Rainfall
Lisbon 27°C (81°F) 18°C (64°F) 5.7 mm (0.2 in)
Cascais 22°C (72°F) 18°C (64°F) 5 mm (0.2 in)
Ericeira 23°C (73°F) 18°C (64°F) 6.9 mm (0.3 in)
Sintra 23°C (73°F) 18°C (64°F) 5.7 mm (0.2 in)
Sesimbra 24°C (75°F) 19°C (66°F) 4.2 mm (0.2 in)
Costa da Caparica 25°C (77°F) 18°C (64°F) 5.1 mm (0.2 in)

Lisbon Region weather in August: frequently asked questions

What is the weather like in Lisbon Region, Portugal in August?

Expect perfect weather across Lisbon Region, Portugal in August. The popular destination of Lisbon averages 27°C (81°F) by day and 18°C (64°F) at night during this summer month.

What is the average temperature in Lisbon Region, Portugal in August?

In Lisbon, the average daytime high in August is 27°C (81°F), while nighttime temperatures drop to around 18°C (64°F).

Does Lisbon Region, Portugal get a lot of rain in August?

Not particularly. Lisbon averages just 5.7 mm (0.2 in) of rain in August, making it a mostly dry month for Lisbon Region, Portugal.

Is August a Good Time to Visit Lisbon Region, Portugal?

We believe that August is one of the best times to visit Lisbon Region, Portugal with overall perfect weather in Lisbon.

On average, the best time to visit Lisbon Region, Portugal is in May, June, July, August, September and October with generally perfect weather in Lisbon. On the other hand, the weather in January, February and December tend to be tolerable.

Interested in more climate information?

We have much more information about the climate in Lisbon Region.

Weather and climate has detailed information for every country in the world. Are you going to Portugal? Get detailed 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 travel conditions. Find out where to go with our weather planner.

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