Last updated: June 2, 2025
In San Jose, Philippines, understanding the UV Index is crucial for safeguarding your skin health and preventing sunburn. High UV levels can lead to serious skin damage and increase the risk of skin cancer, making it essential to stay informed about daily exposure. With a typical climate marked by intense sun, San Jose experiences peak UV Index levels soaring as high as 13 during midday. This means that taking precautions—like seeking shade, wearing protective clothing, and applying sunscreen—can make a significant difference in your sun safety strategy. Stay mindful and protect yourself from the sun's harmful rays!
The UV Index for the day reveals a clear peak in intensity between 10:00 AM and 1:00 PM, where values soar to a striking 13. Early risers will notice a modest 2 at 7:00 AM, gradually climbing to a moderate 4 by 8:00 AM. As the sun climbs higher, 9:00 AM sees a significant jump to 8, followed by an aggressive leap to 11 at 10:00 AM. The zenith is reached at 11:00 AM and 12:00 PM, both recording a 13, prompting caution for those outdoors. After this peak, the intensity starts to wane, dropping to 12 by 1:00 PM and continuing its descent to 5 by 3:00 PM. By 4:00 PM, the index falls to 2, indicating a much safer level for outdoor activities, and by evening, a 0 signifies that UV exposure is no longer a concern from 6:00 PM onward. Make sure to plan your day wisely around these UV fluctuations!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 8 | very high | 15 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 8 | 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 shows extreme levels throughout the year, with only minor fluctuations in values. January through April marks the highest risk months, peaking at an index of 17 in April. As the season progresses, the index slightly declines in June (13), but remains at dangerous levels through August (15) and September (15). Even as autumn approaches, October and November maintain indices of 14 and 13, respectively. Visitors and residents are advised to exercise caution during these months; it is essential to wear protective clothing, apply sunscreen, and seek shade, particularly during midday hours when UV exposure is at its peak. Remember, with burn times of only 10 minutes, it's crucial to prioritize your skin health year-round.
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 |
| 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 |
| San Jose | 14 | 15 | 16 | 17 | 15 | 13 | 14 | 15 | 15 | 14 | 13 | 12 |