UV Index in Laguna, United States

Last updated: June 2, 2025

Understanding the UV Index in Laguna, United States is crucial for safeguarding your skin health and preventing sunburn. With peak UV levels reaching as high as 13 during midday, awareness of UV exposure is vital, especially in Laguna's semi-arid climate where sunny days are common. By familiarizing yourself with the UV Index, you can better protect yourself and your loved ones from the harmful effects of ultraviolet radiation. So, whether you're enjoying outdoor activities or just soaking up the sun, staying informed about the UV levels can make all the difference in your sun safety strategy.

Hourly UV Index in Laguna

Throughout the day, the UV Index experiences a dynamic shift, peaking at an impressive 13 between 1 PM and 2 PM, indicating a high risk of harm from unprotected sun exposure. The morning starts gently, with a UV Index of 1 at 7 AM, gradually rising to 4 by 9 AM. As the sun inches higher, the intensity increases sharply, reaching 10 by 11 AM and soaring to 12 by noon. Post-peak, the index begins to decline, dropping to 10 at 3 PM, before settling back to a mild 2 by 6 PM. This clear progression emphasizes the importance of sun protection during the midday hours when the UV Index is at its highest. Enjoy the sunshine, but remember to stay safe! ☀️

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	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	7	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 Laguna

Throughout the year, UV exposure varies significantly, with the highest risk months being April through September when the UV Index frequently reaches extreme levels of 11 to 13. This period sees a dramatic drop in safe burn time to just 10 minutes, indicating strong precaution is necessary. In contrast, January and December represent the lowest risk months with a moderate exposure category and longer burn times of 30 minutes. Visitors and residents are advised to be particularly vigilant during the high-risk months: applying sunscreen, wearing protective clothing, and seeking shade during peak hours to minimize harmful UV exposure. Remember, even on cloudy days or during cooler months, UV rays can still pose a risk, so it's essential to stay informed and protected year-round.

Monthly Maximum UV Index for Laguna, United States

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

The table above highlights how UV exposure in Laguna 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.

Laguna'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
Laguna	5	7	9	11	12	13	13	12	11	8	6	4