UV Index
UV Index
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Today's UV index in Rotterdam, Netherlands 
will be up to 0.6, indicating low risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.
Today, the UV index suggests low sun danger (0-2) in Rotterdam, reaching up to 0.6. 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 Rotterdam.
The UV index in Rotterdam varies throughout the year, reaching its highest levels during the summer months. From June to August, the UV index can range from 4 to 7, indicating a moderate to high risk of sunburn (SPF 15-25 recommended). It is important to protect your skin by wearing sunscreen, sunglasses, and a hat when spending time outdoors.
Rotterdam experiences four distinct seasons: spring, summer, autumn, and winter. Spring (March to May) is mild with temperatures ranging from 5 to 15 °C (41-59 °F) and occasional rainfall. Summers (June to August) are generally warm with temperatures averaging between 17 to 25 °C (63-77 °F). Autumn (September to November) is characterized by cooler temperatures ranging from 9 to 16 °C (48-61 °F) and increasing amounts of rain. Winters (December to February) are cold, with temperatures averaging between 2 to 6 °C (36-43 °F) and occasional snowfall.
Compared to its surrounding region, Rotterdam enjoys a moderate amount of sun exposure. However, being located in the Netherlands, which has a maritime climate, it also experiences frequent cloud cover and rainfall. While the summer months offer the most sunshine, averaging around 7 hours per day, the overall yearly average is around 4 hours per day. It is recommended to check the weather forecast regularly to be prepared for any changes in the weather conditions.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Rotterdam. It's designed to provide you with a better understanding of the yearly weather and sun exposure.