UV Index in Alpine, United States

Last updated: July 2, 2025

In Alpine, United States, awareness of the UV Index is crucial for safeguarding skin health amid the region's distinct BSk climate. With UV levels peaking at midday, understanding these fluctuations is vital for preventing sunburn and long-term skin damage. The intense sun exposure, especially during peak hours—reaching a UV Index of 13—means that residents and visitors must stay vigilant. By tracking the UV Index, you can enjoy the beautiful outdoors while prioritizing your health and well-being.

Hourly UV Index in Alpine

As the day unfolds, the UV Index reveals a dramatic climb in sun exposure, starting from a gentle 1 at 07:00 and reaching a peak of 13 at 14:00. The morning brings mild levels, with a steady increase as the sun rises higher in the sky. By 12:00, the index escalates to a notable 10, making sun protection increasingly essential. As the afternoon progresses, the levels remain intense, with a high of 12 at 13:00 before gradually tapering off into the evening. The decline continues into the twilight hours, with the index dropping to 2 by 19:00. This pattern highlights the importance of being cautious under the midday sun, especially between 11:00 and 15:00 when the risks for skin damage are at their 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	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	7	high	25 min
12:00	10	very high	15 min
13:00	12	extreme	10 min
14:00	13	extreme	10 min
15:00	12	extreme	10 min
16:00	9	very high	15 min
17:00	6	high	25 min
18:00	3	moderate	30 min
19:00	2	low	45 min

Monthly UV Index Trends in Alpine

Throughout the year, UV levels fluctuate significantly, with the highest risks occurring between February and September. During this period, the UV Index peaks in April, May, June, and July at a striking 13, categorized as extreme, which means a burn can occur in as little as 10 minutes. The high-risk months include March through September, where values remain consistently high to extreme, necessitating extra caution. Residents and visitors are advised to take preventative measures during these months, such as wearing protective clothing, applying sunscreen frequently, and seeking shade during peak sun hours to minimize the risk of UV-related harm. The UV Index tapers off in November and returns to moderate levels in December and January, allowing for safer outdoor activities. Always stay informed and protect your skin, particularly during the high-UV months!

Monthly Maximum UV Index for Alpine, United States

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

The table above highlights how UV exposure in Alpine 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.

Alpine'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
Alpine	5	8	10	12	13	13	13	12	11	9	7	5