Lisbon in august: average Weather, Temperature and Climate
Weather in Lisbon in august 2025
The weather in Lisbon in the month of august comes from statistical datas on the past years. You can view the weather statistics for all the month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout august
perfect weather UV index: 7
Weather at 6am
65°F
Clear/Sunny
57% of time
25%
12%
4%
Weather at 12pm
81°F
Clear/Sunny
80% of time
14%
5%
2%
Weather at 6pm
76°F
Clear/Sunny
84% of time
12%
3%
1%
Weather at 3am
67°F
62%
23%
11%
3%
Evolution of daily average temperature and precipitation in Lisbon in august
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Lisbon in august.
The climate of Lisbon in august is perfect
The month of August is one of the best moments to discover Lisbon, its streets and its monuments. Located in the heart of summer, the climate throughout August in Lisbon is favored by a pleasant warmth and perfect sunshine. The month of August is indeed very dry, with only a few rainy episodes in perspective.
Lisbon at the Beginning of August
The first days of August observe the appearance of morning mists rising from the sea. However with the rise in temperature in the middle of the morning, the heat is felt and the fog disappears discreetly. Such leaves time to enjoy the beautiful sunny days during one's holiday.
Lisbon in the Middle of August
The fogs intensify and persist for hours. however as they disappear discreetly at the same time as the heat, one can still enjoy a magnificent weather in Lisbon throughout August for the rest of the day. However pay attention to possible thunderstorms that may occur in the evening.
Lisbon at the End of August
Despite a slight drop in temperature, the climatic conditions in Lisbon remain superb. This is especially true as the fog gradually regresses and that the rains are still rare. For this reason, one can enjoy the beautiful sunny days in order to turn their stay into an unforgettable moment of relaxation.
Seasonal average climate and temperature of Lisbon in august
Check below seasonal norms These statistics are generated from the weather statements of the last years of the month of august.
| August | |||||
| Outside temperature | |||||
| Average temperature | 74°F | ||||
| Highest temperature | 83°F | ||||
| Lowest temperature | 65°F | ||||
| Highest record temperature | 104°F (2018) | ||||
| Lowest record temperature | 58°F (2010) | ||||
| Number of days at +86°F | 7 day(s) (23%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 68°F | ||||
| Lowest sea temperature | 63°F | ||||
| Highest sea temperature | 72°F | ||||
| Wind | |||||
| Wind speed | 22km/h | ||||
| Wind temperature | 65°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 0.3in | ||||
| Number of days with rainfall | 0 day(s) (1%) | ||||
| Record daily rainfall | 0.5in (2017) | ||||
| Other climate data | |||||
| Humidity | 85% | ||||
| Visibility | 9.64km | ||||
| Cloud cover | 13% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 14 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:51 | ||||
| Time of sunset | 19:31 | ||||
| Length of day | 13:40 | ||||
| Our opinion about the weather in august | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last august?
Here is the day by day recorded weather in Lisbon in august 2024:
65°F to 81°F
65°F to 79°F
65°F to 83°F
65°F to 86°F
67°F to 81°F
68°F to 81°F
65°F to 81°F
65°F to 79°F
63°F to 86°F
68°F to 86°F
67°F to 85°F
65°F to 83°F
67°F to 77°F
63°F to 77°F
63°F to 88°F
68°F to 94°F
68°F to 86°F
68°F to 83°F
65°F to 83°F
68°F to 81°F
65°F to 81°F
65°F to 77°F
67°F to 81°F
67°F to 83°F
61°F to 81°F
61°F to 83°F
63°F to 83°F
61°F to 81°F
65°F to 76°F
65°F to 77°F
65°F to 76°F
Map: other cities in Portugal in august
Cities near Lisbon:
| Costa da Caparica in august | perfect weather |
| Montijo in august | perfect weather |
| Estoril in august | perfect weather |
| Sintra in august | perfect weather |
| Cascais in august | perfect weather |
| Colares in august | perfect weather |
| Guincho in august | perfect weather |
| Setúbal in august | perfect weather |
| Sesimbra in august | perfect weather |
| Ericeira in august | perfect weather |
| Torres Vedras in august | perfect weather |
| Lourinhã in august | perfect weather |
Click over cities on the map for information about the weather in august.
Lisbon
perfect weather
good
tolerable
bad
very bad
Weather data for Lisbon in august:
Weather data for Lisbon for august are derived from an average of the weather forecast since 2009 in Lisbon. There is a margin of error and these forecasts are to be considered as general information only. The weather in Lisbon can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Lisbon.