UV Index
UV Index
Today's UV index in Rotterdam, Netherlands 
will be up to 5.2, indicating a moderate level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-10
With a UV index reaching up to 5.2 in Rotterdam, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
The UV index in Rotterdam is usually low to moderate, ranging from about 1 in winter to around 6 or 7 in summer during sunny days. It rarely reaches very high levels.
Rotterdam has mild summers and cool winters. Rain is spread throughout the year, with the most in late summer and autumn. Winds can be strong, especially in the colder months.
Compared to nearby countries like Belgium and Germany, Rotterdam's weather is similar but often wetter and windier due to its coastal location. It’s milder than inland areas but cooler than southern Europe.
See the UV index hour by hour for Rotterdam, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.