UV Index
UV Index
Today's UV index in Grenoble, France 
will be up to 7.9, indicating a 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: 2025-07-18
With Grenoble's UV index reaching 7.9, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
The UV index in Grenoble, France, varies throughout the year, typically ranging from low to moderate levels. It is highest during summer months, reaching values around 7 to 8, and lowest in winter, often near 0 to 1.
Grenoble experiences warm summers with temperatures sometimes above 25°C (77°F) and cold winters with frequent snow. Spring and autumn are mild and pleasant, with occasional rain and cooler temperatures as the seasons change.
Compared to nearby regions, Grenoble tends to be cooler than coastal areas but warmer than higher Alpine locations. Its weather is similar to other cities in southeastern France but has more snowfall due to its proximity to the mountains.
See the UV index hour by hour for Grenoble, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.