Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Hagonoy, Philippines—a tropical climate zone known for its vibrant sun and warm temperatures. With UV levels peaking around midday, reaching a staggering 13, awareness of these values is essential for preventing sunburn and protecting skin health. By knowing when the UV index is highest, you can take proactive steps to shield yourself from harmful rays, ensuring you enjoy the beautiful outdoors safely. Given Hagonoy's typical climate, where exposure risks amplify during peak hours, staying informed about UV levels can help you prioritize your sun safety.
The UV Index throughout the day follows a striking pattern, peaking sharply at 11:00 AM and 12:00 PM with a maximum value of 13. As the day begins, the UV levels are quite low, starting at 1 at 7:00 AM, gradually climbing to a moderate 4 by 8:00 AM. As 9:00 AM rolls around, the intensity escalates to 7, and by 10:00 AM, it reaches a strong 10. The intensity of UV radiation continues to soar, urging caution as it peaks at the midday hours. Following the zenith, the UV index gently descends, dropping to 9 at 2:00 PM and tapering downwards to 6 by 3:00 PM, before winding down to a mere 1 by 5:00 PM and 0 by 7:00 PM. This highlights the importance of sun protection during the peak hours, particularly between 11:00 AM and 2:00 PM.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index displays significant seasonal variation, with the highest values occurring from January to September, where it consistently ranks as extreme with an index ranging from 11 to 15 and a rapid burn time of only 10 minutes. The months of March and April boast the peak UV Index of 15, indicating the highest risk for sunburn. Following this, the months of November and December show a slight decrease to a very high category with an index of 10 and a longer burn time of 15 minutes. Visitors and residents are strongly advised to take precautions during the high-risk months, particularly from January through September, by seeking shade, wearing protective clothing, and applying sunscreen regularly to minimize the risk of harmful UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hagonoy | 11 | 13 | 15 | 15 | 13 | 14 | 13 | 14 | 14 | 13 | 10 | 10 |
| 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 |
| 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 |