UV Index in Rosario, Philippines

Last updated: July 2, 2025

Awareness of the UV Index in Rosario, Philippines, is crucial for maintaining optimal skin health and preventing sunburn. With the region's tropical Af climate, residents and visitors alike are exposed to significant UV levels, especially during midday hours when the index can soar to a dangerous 13. Understanding these levels helps you take necessary precautions, ensuring you enjoy the sun while protecting your skin. Stay informed and safeguard your health by monitoring daily UV fluctuations, particularly when venturing outdoors between 10 AM and 1 PM, when the risk is at its peak.

Hourly UV Index in Rosario

The UV index throughout the day presents an intriguing journey of exposure, peaking at 13 from 11:00 AM to 12:00 PM—the sun's most intense moment. Starting from a modest 2 at 7:00 AM, the index swiftly escalates, hitting 4 by 8:00 AM and soaring to a substantial 11 at 10:00 AM. Just one hour later, it reaches its zenith, radiating at 13, before gradually descending as the afternoon wanes. By 3:00 PM, it's a more manageable 5, eventually dwindling down to 0 by 7:00 PM, signaling a safe retreat from the sun's rays. This dynamic UV pattern serves as a reminder to stay vigilant under the sun, especially during its peak hours when protective measures are essential.

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	13	extreme	10 min
13:00	11	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	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Rosario

Throughout the year, the UV Index remains consistently extreme, with values peaking from March to May at a high of 16. The high-risk months for UV exposure are February to May, where the Index reaches an alarming 14 to 16, indicating that even short exposures of just 10 minutes can lead to skin damage. The UV Index begins to gradually decline from June to December, but it remains at dangerous levels throughout the year. Therefore, it is critical for both visitors and residents to take precautions such as wearing protective clothing, seeking shade, and applying sunscreen regularly, particularly during these high-risk months to mitigate the risk of harmful sun exposure.

Monthly Maximum UV Index for Rosario, Philippines

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

The table above highlights how UV exposure in Rosario 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.

Rosario'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
Rosario	13	14	16	16	15	13	13	14	14	14	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