Today, the UV index suggests low sun danger (0-2) in Sofia, reaching up to 1.8. 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 Sofia.
In Sofia, Bulgaria, the UV index is an important factor to consider when planning outdoor activities. During the summer months, the UV index can reach high levels, often peaking between 8 and 11 (very high to extreme). This means that the sun's rays are intense and can cause sunburn and other skin damage quickly. To protect yourself, it's advisable to use sunscreen with a high SPF, wear protective clothing, and seek shade during the peak hours of the day.
Sofia experiences four distinct seasons: spring, summer, autumn, and winter. Spring brings mild temperatures, with average highs ranging from 14 °C to 19 °C (57 °F to 66 °F) in April and May. Summer is warm and sometimes hot, with temperatures averaging from 24 °C to 30 °C (75 °F to 86 °F) in June, July, and August. Autumn is characterized by mild temperatures that gradually cool down, with average highs of 13 °C to 20 °C (55 °F to 68 °F) in September and October. Winter in Sofia can be cold, with temperatures dropping to around 0 °C (32 °F) or below, and occasional snowfall.
Compared to other cities in the Balkan region, Sofia experiences a moderate level of sun exposure. While it receives less sunshine on average compared to coastal towns, it still enjoys a good amount of sunshine throughout the year. On average, Sofia receives around 2,300 to 2,500 hours of sunshine annually. This means that there are plenty of sunny days to enjoy outdoor activities, but it's still important to protect yourself from the sun's harmful rays, especially during the summer months.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Sofia. It's designed to provide you with a better understanding of the yearly weather and sun exposure.