Temperatures in August
It's warm in August in Lisbon with an average temperature of 29°C. Temperatures this month range from a low of 27°C to a high of 31°C. At night, you can expect temperatures between 18°C and 20°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Lisbon in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Lisbon with hot temperatures, averaging around 30°C during the day and nights close to 20°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-August
By mid-August, the average daytime temperature stays the same at 30°C, with nights close to 19°C. No precipitation expected during this period, so you can enjoy plenty of sunshine.
Temperatures vary between day and night, so it’s smart to wear layers.
End of August
By the end of August, the average daytime temperature in Lisbon will be around 29°C, with nights close to 19°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
As it gets cooler in the evening, it’s best to wear layers.
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Water temperature
The water temperature at Lisbon is 23°C this month. Comfortable for a swim.
Precipitation in August
According to weather history, there is only 3,4 mm of precipitation in August. The wind speed is around 4 Bft, mostly coming from the Northwest.
The average chance of precipitation is only 2% in August.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Lisbon. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Lisbon in August |
London | ||
|---|---|---|---|
 Average Temperature |
29°C | 22°C | |
 High Temp |
31°C | 24°C | |
| Low Temp |
27°C | 19°C | |
 Total Precipitation |
3,4 mm | 60 mm | |
| Rainy Days |
1 day | 10 days | |
July
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is August a good time to visit Lisbon?
Want nice weather? Then August is a great time to be in Lisbon. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Lisbon in August
With 43°C, Lisbon hit the highest temperature in the last 10 years in August 2018. The lowest daytime temperature in this month was 22°C in 2021. The extreme night temperatures ranged from a low of 15°C to a high of 30°C.
Check out the climate of Lisbon for all months and discover the best travel time
Curious about the climate in other parts of Portugal? Check out the weather and climate in places like Algarve, Albufeira, Madeira, or have a look at other destinations in Portugal.
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Daily Temperature in August in Lisbon
This chart shows the average daily temperatures, both day and night, for each day in August in Lisbon, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in August in Lisbon
Good
It got hot at times, but this was alleviated by fresh air fr... more
Daily Precipitation in August in Lisbon
The chart below shows the average daily precipitation in August for Lisbon, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect about 1 day of rain in Lisbon.
Daily UV Index in August in Lisbon
This chart shows the average daily UV index in August in Lisbon, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Lisbon Over the Years
This chart shows the average temperature in August in Lisbon, measured in degrees Celsius, over the past years.
Total Precipitation in August in Lisbon Over the Years
This chart shows the average precipitation in August in Lisbon, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Lisbon
Click on a specific day in August for detailed info on the typical weather on that day in Lisbon. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Lisbon
The weather in August in Lisbon is rated 4 out of 5 stars by 1 visitor. Have you been to Lisbon? Share your weather experience to help other visitors.
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It got hot at times, but this was alleviated by fresh air from the Atlantic Ocean. Tip: bring plenty of sunscreen!— This text is automatically translated to English
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Average Weather in Lisbon by Month
Click on a month below to see detailed weather info for Lisbon. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
