Portugal

Portugal Weather in August

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

Thinking about venturing to Portugal this August and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Portugal in August

Portugal has a wide variety of climate types. During August, you can expect temperatures that range from pleasant to very warm and precipitation levels ranging from almost none to moderate. The month of August is in the summer season.

Temperatures

During the day the temperature is pleasant in Azoia at 21°C (70°F) and very warm in Monsaraz at 35°C (95°F). As night falls, temperatures generally drop to 19°C (66°F) in Monsaraz and 18°C (64°F) in Azoia. In 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.

To learn more about the conditions in specific areas of Portugal, check out the map below.

Precipitation

In August, precipitation varies across different areas. From almost no rainfall in Sagres with an average of 2.1 mm (0.1 in) to moderate rainfall in Faja Grande with 63 mm (2.5 in).

Average sunshine

Most destinations offer generous amounts of sunshine this August. For example, Lisbon gets approximately 350 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Portugal by month

Best Places to Visit in Portugal in August

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

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 Portugal

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

Temperature range in Portugal (August)

Precipitation variation in Portugal (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
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

Porto

In August Porto generally has high temperatures with maximum daytime temperatures around 25°C (77°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
Max temperature
25°C (77°F)
25°C (77°F)
24°C (75°F)
Min temperature
18°C (64°F)
18°C (64°F)
17°C (63°F)
Monthly sun hours
307 hours
295 hours
224 hours
Monthly rainfall
22 mm (0.9 in)
27 mm (1.1 in)
62 mm (2.4 in)
Monthly rainy days
6 days
6 days
9 days
Weather conditions

Albufeira

In August Albufeira generally has high temperatures with maximum daytime temperatures around 28°C (82°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
Max temperature
28°C (82°F)
28°C (82°F)
26°C (79°F)
Min temperature
19°C (66°F)
19°C (66°F)
18°C (64°F)
Monthly sun hours
381 hours
357 hours
266 hours
Monthly rainfall
1.1 mm (0.04 in)
2.7 mm (0.1 in)
23 mm (0.9 in)
Monthly rainy days
a single day
a single day
2 days
Weather conditions

Lagos

In August Lagos generally has high temperatures with maximum daytime temperatures around 26°C (79°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
Max temperature
26°C (79°F)
26°C (79°F)
25°C (77°F)
Min temperature
18°C (64°F)
19°C (66°F)
18°C (64°F)
Monthly sun hours
381 hours
355 hours
267 hours
Monthly rainfall
1.3 mm (0.1 in)
2.6 mm (0.1 in)
21 mm (0.8 in)
Monthly rainy days
a single day
a single day
3 days
Weather conditions

Portimão

In August Portimão generally has high temperatures with maximum daytime temperatures around 28°C (82°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
Max temperature
28°C (82°F)
28°C (82°F)
26°C (79°F)
Min temperature
18°C (64°F)
19°C (66°F)
18°C (64°F)
Monthly sun hours
381 hours
357 hours
266 hours
Monthly rainfall
1.4 mm (0.1 in)
2.8 mm (0.1 in)
22 mm (0.9 in)
Monthly rainy days
a single day
a single day
3 days
Weather conditions

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

City Weather Day temp Night temp Rainfall
Lisbon 27°C (81°F) 18°C (64°F) 5.7 mm (0.2 in)
Porto 25°C (77°F) 18°C (64°F) 27 mm (1.1 in)
Cascais 22°C (72°F) 18°C (64°F) 5 mm (0.2 in)
Ponta Delgada 24°C (75°F) 21°C (70°F) 43 mm (1.7 in)
Coimbra 29°C (84°F) 16°C (61°F) 18 mm (0.7 in)
Braga 27°C (81°F) 16°C (61°F) 46 mm (1.8 in)

Portugal weather in August: frequently asked questions

What is the weather like in Portugal in August?

August in Portugal brings perfect weather. In Lisbon, daytime temperatures are typically around 27°C (81°F) and nighttime lows hover near 18°C (64°F).

What is the average temperature in Portugal in August?

Daytime temperatures in Lisbon peak at roughly 27°C (81°F) in August, dropping to about 18°C (64°F) overnight.

Does Portugal get a lot of rain in August?

August is on the drier side in Portugal. Lisbon averages only about 5.7 mm (0.2 in), with most days staying dry.

Is August a Good Time to Visit Portugal?

We consider August to be one of the best times to travel to Portugal. Typically, the climate in Lisbon is perfect.

Generally speaking, May, June, July, August, September and October provide 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 Portugal.

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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