UV Index in Monterey Park, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Monterey Park, California, where sunny days are plentiful and outdoor activities abound. By monitoring UV levels, you can effectively prevent sunburn and protect your skin health, ensuring that your time outdoors is safe and enjoyable. Given Monterey Park's BSk climate, which brings warm and dry summers with significant sun exposure, awareness of the UV Index is vital. With peak values reaching up to 12 during midday hours, taking precautions against harmful UV rays becomes essential for maintaining your well-being.

Hourly UV Index in Monterey Park

Throughout the day, the UV Index displayed a dynamic pattern, peaking at an intense 12 around 1 PM. Starting off gently at 1 by 7 AM, it climbed steadily, reaching 9 by 11 AM, a clear sign to take precautions. As the sun approached its zenith, the index swelled to its maximum at 12 PM, emphasizing the importance of sun safety. Following the midday peak, the index gradually decreased, dropping to 9 by 3 PM, then tapering off further to 2 by 6 PM and 1 by 7 PM. This data underscores the significance of shielding oneself from the sun's harmful rays during the day, especially when the UV Index is at its highest.

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	1	low	45 min
08:00	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Monterey Park

The UV Index exhibits significant seasonal variation, with peak levels occurring from March to September. During this period, particularly in April to August, the UV Index reaches extreme levels, making these the highest risk months for sun exposure. For instance, April and May have UV Index values of 11 and 12, respectively, allowing only 10 minutes of unprotected sun exposure before burns may occur. Conversely, months like January and December show a moderate UV Index of 4, where the burn time extends to 30 minutes. Visitors and residents are advised to take proactive sun safety measures, such as wearing sunscreen, protective clothing, and seeking shade, especially during the high-risk months.

Monthly Maximum UV Index for Monterey Park, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Monterey Park. 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 Monterey Park, 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 Monterey Park UV Index with Other United States Cities

The table above highlights how UV exposure in Monterey Park compares to other major locations across United States. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Monterey Park's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chicago UVI	3	4	6	8	9	10	10	9	8	6	4	2
Brooklyn UVI	3	5	6	8	10	10	9	9	8	6	4	2
New York City UVI	3	5	6	8	10	10	9	9	8	6	4	2
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5
Monterey Park	4	7	9	11	12	13	12	12	11	8	6	4