Today, the UV index suggests low sun danger (0-2) in Bratislava, reaching up to 1. 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 Bratislava.
The UV index in Bratislava can vary throughout the year, reaching its highest levels during the summer months. In June, the UV index typically ranges from 5 to 7, indicating moderate to high sunburn risk. It can increase further in July and August, reaching levels of 7 to 9 (high to very high risk). It is crucial to protect your skin by using sunscreen, wearing protective clothing, and seeking shade during peak UV hours.
Bratislava experiences four distinct seasons. Spring (March to May) brings mild temperatures, with average highs ranging from 10 °C (50 °F) to 15 °C (59 °F), and occasional rainfall. Summer (June to August) is hot and sunny, with average highs between 25 °C (77 °F) and 30 °C (86 °F). Autumn (September to November) starts mild and gradually becomes cooler, with temperatures ranging from 15 °C (59 °F) to 20 °C (68 °F). Winter (December to February) is cold, with average highs around or below freezing point, ranging from 0 °C (32 °F) to 3 °C (37 °F). Snowfall is common during winter.
Compared to its region, Bratislava enjoys a moderate level of sun exposure. It is located in a temperate continental climate zone, which means it experiences all four seasons. The city, however, receives slightly higher levels of sun compared to neighboring cities further north, such as Vienna, due to its more southern location. Nevertheless, it is important to be sun-safe throughout the year, especially during the summer months when the UV index is at its highest.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Bratislava. It's designed to provide you with a better understanding of the yearly weather and sun exposure.