Today, the UV index suggests low sun danger (0-2) in Hannover, reaching up to 0.5. 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 Hannover.
In Hannover, Germany, the UV index varies throughout the year. During the summer months (June to August), when the sun is at its strongest, the UV index can reach levels considered high, ranging from 6 to 8. It is important to protect your skin by wearing sunscreen, hats, and sunglasses, especially between 10 am and 4 pm, when UV radiation is most intense. In the other seasons, the UV index is generally lower, but it is still advisable to take precautions.
Hannover experiences four distinct seasons throughout the year. Spring (March to May) brings mild temperatures, with average highs ranging from 10 °C (50 °F) in March to 18 °C (64 °F) in May. Summers (June to August) are warm, with average highs of around 22 °C (72 °F) and the occasional heatwave pushing temperatures higher. Autumn (September to November) is cool, with temperatures ranging from 14 °C (57 °F) to 19 °C (66 °F), and colorful foliage. Winters (December to February) are cold, with average highs around 4 °C (39 °F) in December and January, and occasional snowfall.
Compared to its region, Hannover enjoys a moderate climate with a fair amount of sun exposure. It is located in the Lower Saxony region of Germany, which experiences relatively mild temperatures throughout the year. The region benefits from the warm influence of the North Sea, resulting in cooler summers and milder winters compared to the country's southern regions. However, it still receives a good amount of sunshine, with approximately 1,600 to 1,700 hours of sunlight annually, making it pleasant for outdoor activities.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Hannover. It's designed to provide you with a better understanding of the yearly weather and sun exposure.