UV Index in San Antonio, Philippines

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of San Antonio, Philippines, where the tropical climate brings abundant sunshine. The UV levels can soar to dangerous heights, peaking at 14 around noon, making awareness vital for preventing sunburn and protecting skin health. With the potential for high UV exposure, knowing when to seek shade or apply sunscreen can make all the difference. In San Antonio’s sunny environment, staying informed about the UV Index not only helps ensure a safe and enjoyable outdoor experience but also supports long-term skin wellness.

Hourly UV Index in San Antonio

As the sun rises, the UV Index begins its ascent, starting at a gentle 2 by 07:00. By 08:00, it ramps up to 4, signaling a moderate exposure risk. The intensity peaks around midday, reaching a formidable 14 at 12:00, making this the most critical time for sun protection. As the afternoon unfolds, the index drops gradually, falling to 8 by 14:00 and further declining to 2 by 16:00. By evening, levels mellow to near zero by 19:00, indicating a safe time to enjoy the outdoors without sun concerns. Remember, protect yourself during those peak hours for a safe and enjoyable day!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
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	14	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	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Antonio

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.

Monthly Maximum UV Index for San Antonio, Philippines

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in San Antonio. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for San Antonio, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare San Antonio UV Index with Other Philippines Cities

The table above highlights how UV exposure in San Antonio compares to other major locations across Philippines. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

San Antonio's solar exposure compared to other cities in Philippines. Generated using Copernicus Atmosphere Monitoring Service information.
	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 Antonio	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