Last updated: July 2, 2025
Understanding the UV Index in Koudum, Netherlands, is essential for protecting your skin and maintaining overall health. Being aware of UV levels is key to preventing sunburn and minimizing long-term skin damage, particularly during the sunnier months. Koudum's marine temperate climate (Cfb) brings varying weather conditions, often resulting in significant UV exposure during peak sunlight hours. With the UV Index climbing as high as 8 in the afternoons, residents and visitors must stay informed to enjoy the outdoors safely while valuing their skin's well-being.
As the sun rises, the UV Index begins its ascent, starting off low at 1 at 07:00 and remaining steady through 08:00. By 09:00, it nudges up to 2, signaling a gradual intensification. The index reaches a noticeable 4 at 10:00, but it isn't until noon that it peaks at a striking 7. Both 12:00 and 13:00 maintain this high level, emphasizing the need for sun protection. The highest reading of the day occurs at 14:00, hitting 8, indicating a significant risk for unprotected skin. As the afternoon wanes, the index begins to decline, tapering to 6 by 16:00, then 4 at 17:00, and finally resting at 2 by 19:00. This data underscores the importance of being mindful of sun exposure, particularly during the midday hours when UV radiation is at its strongest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV Index values exhibit a notable increase during the spring and summer months, peaking in June and July with an index of 8, categorizing these periods as very high risk for sun exposure. The high-risk months include May through August, where the burn time decreases significantly, dropping to just 15 minutes in June and July. Conversely, January and December see a much lower UV Index of 1, indicating a low risk, with extended burn times of 45 minutes. To ensure safety, residents and visitors are advised to take necessary precautions, particularly during the high-index months, by wearing sunscreen, protective clothing, and limiting sun exposure during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Koudum | 1 | 2 | 3 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Amsterdam UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Utrecht UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Rotterdam UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Eindhoven UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Tilburg UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |