Sintra weather in May
Temperature, rain and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Excellent
Best time to visit: May – September
What is the weather like in Sintra in May?
In May, Sintra is mild: daytime highs average 19 °C, and nights cool down to about 13 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 38 mm. All in all, May is an excellent month for a holiday in Sintra.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 14 h 16 min06:26 – 20:41
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 44 %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 %89 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Sintra in May: quick answers
Is Sintra hot in May?
No. In May, Sintra is mild: daytime highs average 19 °C and nights drop to about 13 °C.
Does it rain much in Sintra in May?
Rain falls on about 6 days, adding up to 38 mm.
Sintra month by month
The whole year in SintraAll destinations: PortugalWhere to go in May
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