UV Index
UV Index
Today's UV index in Sintra, Portugal 
will be up to 9.6, indicating a very high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-07-12
With a UV index of 9.6 in Sintra, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
Sintra, Portugal, has a UV index generally ranging from low to moderate throughout the year, peaking in summer months around 7 to 8.
The weather in Sintra features mild, rainy winters and warm, dry summers. Spring and autumn are cooler with occasional rain, and the area often experiences fog and mist due to its hilly landscape.
Compared to the rest of Portugal, Sintra is cooler and wetter because of its elevation and proximity to the Atlantic Ocean. Neighboring Spain generally has hotter summers and colder winters, especially inland.
See the UV index hour by hour for Sintra, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.