Last updated: August 1, 2025
Understanding the UV Index is crucial for residents of Kalian, Philippines as it helps gauge the daily risk of overexposure to ultraviolet radiation. High UV levels can lead to sunburn, accelerate skin aging, and increase the risk of skin cancer. In this tropical climate, which features an Af climate zone, Kalian experiences significant UV exposure, particularly during midday when the UV Index peaks at 13. Being aware of the UV Index empowers locals and visitors alike to take necessary precautions, ensuring their skin health and overall well-being while enjoying the sunny days that Kalian is known for.
As the sun rises, the UV Index begins its climb, peaking at 13 by noon, a clear signal that midday is when UV rays are most potent. Starting from a gentle 2 at 07:00, it steadily rises to 4 by 08:00, and then rapidly escalates, hitting 10 by 10:00. Midday, between 11:00 and 12:00, sees the highest intensity, maintaining a scorching 13. A gradual decline follows, with readings dropping to 9 by 14:00, before falling to a safer 5 at 15:00. The late afternoon brings a further decrease, concluding the day with 2 at 16:00, followed by a quick drop to 1 by 17:00 and settling at 0 after 18:00. This hourly snapshot serves as a reminder to stay protective during peak hours when UV exposure is highest.
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 | 11 | 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 |
Throughout the year, the UV Index in the area remains consistently extreme, peaking between February and March with values reaching up to 16. The high-risk months for UV exposure are primarily from January to April, where the UV Index fluctuates between 13 and 16, indicating severe potential for skin damage within just 10 minutes of unprotected sun exposure. While May to August witness slightly lower UV values (ranging from 14 to 13), caution is still crucial. September marks another peak at 15, gradually decreasing to 12 in November and 11 in December. Visitors and residents are strongly advised to wear protective clothing, use sunscreen, and seek shade during peak sun hours, particularly from late winter to early spring, to minimize the risk of harmful UV exposure.
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 |
Kalian | 13 | 14 | 16 | 16 | 14 | 13 | 13 | 14 | 15 | 14 | 12 | 11 |
Davao UVI | 13 | 15 | 16 | 15 | 15 | 13 | 14 | 14 | 15 | 14 | 13 | 11 |