Today, the UV index suggests low sun danger (0-2) in Luzern, reaching up to 1.2. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.
Read more here about the climate and sun exposure in and around Luzern.
The UV index in Luzern ranges from 1 to 9 (low to very high). It is strongest between 11 am and 3 pm. It is essential to protect your skin during peak hours to avoid sunburn and potential damage.
Luzern experiences four distinct seasons. Spring (March-May) is mild with temperatures averaging between 7 °C and 17 °C (45 °F and 63 °F). Summer (June-August) is warm, ranging from 15 °C to 25 °C (59 °F to 77 °F). Autumn (September-November) brings cooler temperatures, around 9 °C to 18 °C (48 °F to 64 °F). Winter (December-February) is cold, with temperatures dipping to -5 °C to 5 °C (23 °F to 41 °F).
Compared to its region, Luzern enjoys a similar climate. However, due to its elevation and proximity to the mountains, Luzern experiences more precipitation and occasional snowfall. The city has an average of 1,371 hours of sunshine per year, ensuring a fair amount of sun exposure along with its beautiful scenery.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Luzern. It's designed to provide you with a better understanding of the yearly weather and sun exposure.