UV Index in Castillo, Philippines

Last updated: July 2, 2025

Understanding the UV Index is vital for residents of Castillo, Philippines, where the tropical climate brings intense sun exposure year-round. Monitoring UV levels is essential not just for preventing painful sunburns but also for protecting long-term skin health against damaging radiation. During peak hours—especially between 10 AM and 2 PM, when the UV Index can soar to an alarming 14—it's crucial to take precautions. With Castillo's Af climate, characterized by warm temperatures and plenty of sunshine, awareness of UV risks can help ensure that you and your loved ones stay safe while enjoying the outdoors.

Hourly UV Index in Castillo

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!

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	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

Monthly UV Index Trends in Castillo

The UV Index shows a consistently high level of ultraviolet radiation throughout the year, with extreme exposure levels recorded from January through December. The highest UV readings occur between March and September, peaking at 15 in both March and September, indicating that these months, along with April and July, are particularly high-risk for sun exposure. Visitors and residents should be vigilant during these months, as the burn time is astonishingly short at just 10 minutes across all months. It is strongly advised to wear protective clothing, apply sunscreen, and seek shade to minimize the risk of skin damage during outdoor activities.

Monthly Maximum UV Index for Castillo, Philippines

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

The table above highlights how UV exposure in Castillo 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.

Castillo'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
Castillo	11	13	15	15	13	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