Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Arucas, Spain, where the warm BWh climate presents notable sun exposure risks. With UV levels peaking at an intense 12 during midday, being aware of these readings is essential for sunburn prevention and long-term skin health. By knowing when UV levels are highest, individuals can take proactive steps to protect themselves from harmful rays, ensuring a safer and more enjoyable outdoor experience in this beautiful region.
As the sun rises, the UV Index remains low, starting at a maximum of 0 at 7:00 AM. However, by 8:00 AM, it ticks up to 1, signaling the beginning of UV exposure. The intensity climbs steadily, hitting 4 by 10:00 AM and reaching 6 at 11:00 AM. The peak occurs at 1:00 PM, with a striking 11, shortly followed by the highest level of 12 at 2:00 PM—a time when sun protection is crucial! As afternoon turns to evening, the index gradually declines, falling to 6 by 5:00 PM and tapering off to 3 at 6:00 PM, before settling at a gentle 2 by 7:00 PM. This data highlights the importance of seeking shade and wearing sunscreen during the midday hours when UV exposure is at its peak.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
The UV Index experiences significant seasonal variation, peaking during the warmer months. From January (UV Index 5) to February (UV Index 7), conditions gradually worsen, signaling the approach of higher UV exposure. The months of March through September present the highest risk, with UV Index values reaching 12 in May and June, categorizing these months as extreme. Residents and visitors are advised to take extra precautions during these high-risk months, using sunscreen, wearing protective clothing, and seeking shade especially during peak sun hours. As the year progresses into October (UV Index 9) and November (UV Index 7), UV levels begin to decline, allowing for safer outdoor activities in the cooler months of December and January (UV Index 5). Always stay informed and protect your skin from harmful UV radiation!
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Barcelona UVI | 3 | 4 | 5 | 7 | 8 | 10 | 10 | 9 | 7 | 6 | 3 | 2 |
| Zaragoza UVI | 3 | 4 | 6 | 8 | 9 | 11 | 11 | 9 | 8 | 6 | 3 | 2 |
| Valencia UVI | 3 | 4 | 6 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |
| Madrid UVI | 3 | 4 | 6 | 8 | 10 | 11 | 11 | 9 | 8 | 6 | 4 | 3 |
| Sevilla UVI | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |
| Arucas | 5 | 7 | 9 | 11 | 12 | 12 | 11 | 11 | 11 | 9 | 7 | 5 |