Sintra weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: May – September
What is the weather like in Sintra in August?
In August, Sintra is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. With around 10 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, August is an excellent month for a holiday in Sintra.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 100 | 100 | 96 |
| Day | 24° | 24° | 23° |
| Night | 17° | 18° | 17° |
| Sun | 11 h | 10 h | 8 h |
| Rain days | 1 | 1 | 4 |
More details for August
- Daylight
- 13 h 44 min06:51 – 20:34
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 2 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 26 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/Lisbon
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
Sintra in August: quick answers
Is Sintra hot in August?
Warm rather than hot: in August, daytime highs in Sintra average 24 °C and nights cool to about 18 °C.
Does it rain much in Sintra in August?
It hardly ever rains.
Sintra month by month
The whole year in SintraAll destinations: PortugalWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences