Last updated: May 3, 2025
In San Isidro, Philippines, awareness of the UV Index is crucial for protecting your skin from harmful ultraviolet rays. Understanding UV levels is essential, as it not only helps in preventing painful sunburns but also plays a significant role in long-term skin health. With a tropical climate characterized by high UV exposure—especially during peak hours where the index can soar to a staggering 14—the risk of skin damage is ever-present. Stay informed and vigilant about UV levels to enjoy the sunny days in San Isidro safely!
The UV Index peaks dramatically during the midday hours, illustrating the sun's intensity in compelling detail. Starting at a modest 2 by 07:00, it swiftly ascends as the day unfolds. By 08:00, it jumps to 5, and then reaches a significant 8 at 09:00. The sun is at its fiercest between 10:00 and 12:00, with the index soaring to 14, an indication to take extra precautions! As 13:00 rolls around, the UV level dips slightly to 12, only to further decrease to 9 by 14:00. Post-midday, the sun's strength wanes; it dramatically drops to 5 by 15:00 and decreases to 1 by 17:00, finally settling at 0 by 19:00. Such data highlights the importance of sun protection during the peak hours when the UV intensity is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 5 | moderate | 30 min |
09:00 | 8 | very high | 15 min |
10:00 | 12 | extreme | 10 min |
11:00 | 14 | extreme | 10 min |
12:00 | 14 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 9 | very high | 15 min |
15:00 | 5 | moderate | 30 min |
16:00 | 2 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index exhibits significant seasonal changes, remaining consistently high throughout the year with extreme levels every month. January through April show the highest indices, peaking at 16 in April, while May to August maintain a steady 14. With the UV Index exceeding 13, the high-risk months for sun exposure are February through September. Visitors and residents should take precautionary measures, including wearing protective clothing, applying sunscreen with a high SPF, and seeking shade during peak hours to minimize the risk of sunburn, which can occur in just 10 minutes of exposure. Remember, UV safety is essential year-round, given the extreme exposure category.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Caloocan City UVI | 11 | 13 | 15 | 15 | 13 | 14 | 13 | 14 | 14 | 13 | 10 | 10 |
Quezon City UVI | 11 | 13 | 15 | 15 | 13 | 14 | 13 | 14 | 14 | 13 | 10 | 10 |
Manila UVI | 11 | 13 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 13 | 10 | 10 |
San Isidro | 12 | 13 | 15 | 16 | 14 | 14 | 14 | 14 | 15 | 13 | 11 | 11 |
Budta UVI | 13 | 15 | 16 | 16 | 14 | 13 | 14 | 14 | 15 | 14 | 13 | 11 |
Davao UVI | 13 | 15 | 16 | 15 | 15 | 13 | 14 | 14 | 15 | 14 | 13 | 11 |