UV Index in San Jose, Philippines

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of San Jose, Philippines, where the tropical climate can lead to high levels of solar radiation throughout the day. Awareness of UV levels is vital not only for preventing painful sunburns but also for promoting long-term skin health. In San Jose, peak UV Index values can soar to 15 during midday hours, increasing the risk of skin damage significantly. With typical exposure risks intensifying under the bright sun, staying informed about UV levels empowers you to take proactive measures to protect yourself and enjoy the beautiful Philippine outdoors safely.

Hourly UV Index in San Jose

The UV Index fluctuates dramatically throughout the day, starting low at 2 at 7:00 AM and rapidly rising as the sun ascends. By 10:00 AM, it peaks at a striking 12, signaling an intense sun exposure risk. As the clock ticks to 11:00 AM and 12:00 PM, the index remains alarmingly elevated at 15, urging caution for outdoor activities. Around 1:00 PM, it dips slightly to 13, but the intensity quickly wanes in the afternoon. By 2:00 PM, the index falls to 9 and continues its downtrend, dropping to 5 at 3:00 PM, and finally settling at 0 after 6:00 PM. This data underscores the importance of protecting your skin during peak sun hours, particularly between 10:00 AM and 12:00 PM.

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	5	moderate	30 min
09:00	9	very high	15 min
10:00	12	extreme	10 min
11:00	15	extreme	10 min
12:00	15	extreme	10 min
13:00	13	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 Jose

The UV Index shows extreme levels throughout the year, with only minor fluctuations in values. January through April marks the highest risk months, peaking at an index of 17 in April. As the season progresses, the index slightly declines in June (13), but remains at dangerous levels through August (15) and September (15). Even as autumn approaches, October and November maintain indices of 14 and 13, respectively. Visitors and residents are advised to exercise caution during these months; it is essential to wear protective clothing, apply sunscreen, and seek shade, particularly during midday hours when UV exposure is at its peak. Remember, with burn times of only 10 minutes, it's crucial to prioritize your skin health year-round.

Monthly Maximum UV Index for San Jose, Philippines

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

The table above highlights how UV exposure in San Jose 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 Jose'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
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
San Jose	14	15	16	17	15	13	14	15	15	14	13	12