UV Index
UV Index
Today's UV index in Alkmaar, Netherlands 
will be up to 4.9, 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: 2025-05-09
With a UV index reaching up to 4.9 in Alkmaar, 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 Alkmaar varies throughout the year, typically ranging from low (1-2) in winter to moderate or high (5-7) during the summer months, especially in June and July.
Alkmaar experiences mild, wet winters and cool summers. Rain is spread fairly evenly all year. Spring and autumn bring moderate temperatures and occasional rain, with more sunshine in late spring and summer.
Compared to other parts of the Netherlands and nearby countries like Belgium and Germany, Alkmaar has similar weather patterns. Coastal areas like Alkmaar usually have milder winters and cooler summers due to the North Sea's influence.
See the UV index hour by hour for Alkmaar, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.