Weather in Lisbon in August
How warm is it in Lisbon in August?
In August the typical daytime high in Lisbon is 29.2 °C on average, from 29.5 °C at the start to 28.2 °C at the end of the month.
That is 0.4 °C warmer than in July and 2.2 °C warmer than in September.
The last 10 years were 3.2 °C warmer than more than 40 years ago.
Click a day for more: afternoon and night, the usual range, records and how fast it is warming.
Measured at the weather station Lisboa Geofisica, 1 km away.