UV Index in San Isidro, Philippines

Last updated: July 2, 2025

Understanding the UV Index in San Isidro, Philippines is crucial for maintaining skin health and preventing sunburn, especially in a region characterized by its tropical climate. With UV levels reaching a peak of 14 during midday, residents and visitors alike need to be vigilant about sun exposure. As the sun’s rays can be particularly intense from 10 AM to 2 PM, awareness of the UV Index allows individuals to take proactive measures to protect their skin. By staying informed about UV levels, you can enjoy the beautiful weather in San Isidro while minimizing the risks associated with harmful radiation.

Hourly UV Index in San Isidro

The UV Index today showcases a dramatic rise in solar intensity, starting with a moderate level of 2 at 7:00 AM. As the sun climbs higher in the sky, the intensity peaks at a staggering 14 by noon, marking the most hazardous time for sun exposure. It reaches a maximum of 13 at 1:00 PM, emphasizing the need for protective measures like sunscreen and hats. The afternoon sees a swift decline, dropping to 10 by 2:00 PM and further down to 6 at 3:00 PM. As evening approaches, the UV Index dips to 1 by 5:00 PM, offering some relief, before finally settling at 0 after 7:00 PM. For those planning their day, early morning and late evening provide a safer window for outdoor activities, while midday requires caution to avoid overexposure.

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	7	high	25 min
10:00	11	extreme	10 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	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

Monthly UV Index Trends in San Isidro

The UV Index experiences notable seasonal variations, peaking in the spring and summer months. From February to October, particularly in March through September, the UV Index reaches extreme levels of 12 to 14, with a rapid burn time of just 10 minutes for unprotected skin. January, November, and December present very high levels with UV Index values at 9 to 10, allowing slightly longer safe exposure times of 15 minutes. Thus, high-risk months for UV exposure are primarily from February to October. Visitors and residents are strongly advised to take precautions, including wearing protective clothing, applying sunscreen, and seeking shade, especially during the peak UV intensity hours of the day.

Monthly Maximum UV Index for San Isidro, Philippines

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in San Isidro. 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 Isidro, 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 Isidro UV Index with Other Philippines Cities

The table above highlights how UV exposure in San Isidro 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 Isidro'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
San Isidro	10	12	14	14	13	13	14	14	14	13	10	9
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