UV Index in Crest, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Crest, United States, where the climate often fosters elevated sun exposure. As the UV levels can climb to a peak of 11 during midday, being aware of these readings is essential for preventing sunburn and promoting overall skin health. Knowledge of UV levels helps you take necessary precautions, protecting yourself from harmful effects associated with excessive sun exposure. With Crest's Csa climate, characterized by warm summers, it's vital to stay informed and proactive about UV risks to enjoy the sunshine safely and responsibly.

Hourly UV Index in Crest

At dawn, the UV Index starts at a gentle 1 and gradually rises as the sun climbs higher in the sky. By 09:00, it reaches a moderate 4, signaling a good time to enjoy some outdoor activities while still being cautious. However, between 11:00 and 13:00, the UV Index peaks dramatically at 10 and 11, marking the hours of highest intensity when sun safety measures are crucial. As the afternoon progresses, it slowly declines to 8 at 15:00, offering a bit of relief before dropping further to 3 by 17:00. As daylight wanes, the UV Index returns to a low 1 by 19:00, making it safe to enjoy the evening outdoors without concern for UV exposure.

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	11	extreme	10 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Crest

Throughout the year, the UV Index exhibits significant seasonal variations, with high-risk months typically occurring from March to September. During this period, the UV Index reaches extremes, peaking at 12 in June and July, indicating a very high to extreme exposure risk where the burn time can be as little as 10 minutes. As spring transitions into summer, it is crucial for both visitors and residents to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours. Conversely, the UV Index drops in winter months, with January and December showing moderate levels of 4. Nonetheless, even in these months, it’s advisable to remain vigilant, as UV radiation can still cause skin damage.

Monthly Maximum UV Index for Crest, United States

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

The table above highlights how UV exposure in Crest 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.

Crest'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
Crest	4	6	9	10	11	12	12	11	11	8	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5