Winterthur UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index5.1
- Avg Clouds100%
- Max Temp13.6 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Winterthur, Switzerland 
will reach a high of 5.1 today. This means a moderate level of sun exposure. See our tips below to stay safe!
Last checked: 2025-09-22
Hourly Forecast Chart
Today's Safety Tips
The sun is a bit strong. Find some shade during midday. Wear a hat, sunglasses, and use SPF 30+ sunscreen if you'll be outside for a while.
Winterthur's UV Index
The UV index in Winterthur is usually low during winter, often between 0 and 2, increasing to moderate levels, around 3 to 5, during the summer months. UV exposure is generally lower in winter due to shorter daylight hours and cloud cover.
Weather Seasons
Winterthur experiences cold winters with temperatures often below freezing and regular snowfall. Summers are mild to warm, with temperatures ranging from 20 to 25°C (68 to 77°F). Spring and autumn bring moderate temperatures and variable weather, including rain.
Winterthur's Climate
Compared to other Swiss cities, Winterthur has a similar climate but slightly milder than higher-altitude Alpine areas. It is cooler and less rainy than nearby southern regions such as Ticino. Compared to neighboring Germany, Winterthur tends to have colder winters and more snowfall.
Hourly UV Index Trend
See the UV index hour by hour for Winterthur. When the level is high, it's smart to find some shade.
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