UV Index in San Antonio, Philippines

Last updated: May 3, 2025

In San Antonio, Philippines, staying informed about the UV Index is crucial to protect your skin and overall health. Understanding UV levels helps you prevent sunburn and long-term skin damage, which is especially important given the region's tropical climate that often features intense sunlight. With peak UV Index values soaring to 14, it's vital to take precautions during the sunniest hours, typically between 10 AM and 2 PM. By being aware of the UV Index, you can enjoy the beautiful, sunny days of San Antonio while safeguarding your skin from harmful rays.

Hourly UV Index in San Antonio

The UV Index reveals a dramatic rise in sunlight intensity throughout the morning, peaking at an impressive 14 between 11:00 AM and 12:00 PM. This indicates a time when sun protection is vital, especially as it climbs swiftly from 2 at 07:00 AM to reach 8 by 09:00 AM, illustrating the day’s rapid increase in UV exposure. As the afternoon progresses, the index starts to decline, dropping to 5 at 3:00 PM before diminishing further to 1 by 5:00 PM and finally reaching 0 after 6:00 PM. Thus, the midday hours present the highest risk, calling for caution and proper sun safety measures!

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	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

Monthly UV Index Trends in San Antonio

Throughout the year, UV Index levels vary, but they consistently remain in the extreme exposure category, with burn times of just 10 minutes across all months. The highest UV Index values are observed from March to April, peaking at 17 in April, making these the most critical months for UV exposure. Although other months exhibit slightly lower indices, such as May to August with values ranging from 14 to 15, the risk of skin damage remains significant. Residents and visitors are urged to take precautions, including wearing sunscreen, protective clothing, and seeking shade, especially during these high-risk months. Always be mindful of UV exposure, as even on cloudy days, harmful rays can penetrate the atmosphere.

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	14	16	17	14	14	14	14	15	13	12	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