The temperatures in Sintra in May are comfortable with low of 15°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Sintra during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Sintra in May 2025.
If you’re planning to visit Sintra in the near future, we highly recommend that you review the 14 day weather forecast for Sintra before you arrive.
Temperatures
21° / 15°
Rainy Days
3
Snowy Days
0
Dry Days
28
Rainfall
60
mm
Sun Hours
11.0
Hrs
