Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in San Juan, Philippines, where the sun shines brightly and the climate is predominantly tropical. With UV levels reaching a maximum of 14 at midday, awareness of these readings is vital for effective sunburn prevention and overall skin health. Knowing when UV exposure peaks helps individuals take necessary precautions against harmful rays that can lead to skin damage and long-term health issues. In this beautiful coastal city, where outdoor activities abound, being informed about the UV Index can make all the difference in enjoying the sun safely.
The UV Index today paints a vivid picture of sun intensity throughout the day. Early risers will experience a gentle start at 07:00 with a low of 2, slowly escalating to a more noticeable 4 by 08:00. As the sun climbs higher, the UV Index reaches a peak of 14 at 12:00—the critical midday moment when sun protection is essential. From there, it begins to taper off, dropping to 12 at 13:00 before plunging down to 1 by 17:00. As evening approaches, UV exposure decreases, ultimately settling at 0 by 19:00. Remember to stay sun-safe during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 11 | extreme | 10 min |
11:00 | 13 | extreme | 10 min |
12:00 | 14 | 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 |
Throughout the year, UV Index levels in this region show significant seasonal changes, particularly peaking from March to August with values ranging from 13 to 15, indicating an extreme exposure category and a swift burn time of just 10 minutes. The high-risk months for UV exposure are thus March, April, August, and September, which consistently maintain a high index of 14 or more. Residents and visitors are advised to take precautionary measures during these months, such as wearing sunscreen, protective clothing, and sunglasses, as well as seeking shade whenever possible to minimize the risk of skin damage. In contrast, while December sees a slightly lower UV Index of 10, it still presents a very high risk, underscoring the importance of sun protection even in the winter months.
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 Juan | 11 | 13 | 15 | 15 | 13 | 14 | 14 | 15 | 14 | 13 | 11 | 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 |