UV Index in Alva, United States

Last updated: May 3, 2025

In Alva, United States, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors protect themselves against the harmful effects of overexposure to ultraviolet radiation. With a humid subtropical climate (Cfa), Alva experiences significant UV exposure, particularly during peak hours. For instance, during the midday sun, UV Index levels can soar to a high of 11, indicating an extreme risk of harm from unprotected sun exposure. Stay informed and enjoy the sunshine safely!

Hourly UV Index in Alva

As the sun rises on this vibrant day, the UV Index begins its steady ascent. Starting at a mild 1 at 07:00, it quickly climbs to 3 by 09:00, signaling that it’s time to enjoy some outdoor activities with caution. By 10:00, the index reaches a moderate 5, but the real heat kicks in at 11:00, peaking at an intense 11 from 13:00 to 14:00. During this peak, sun protection is crucial, especially for those planning to be outdoors. As the afternoon progresses, the UV Index gently declines, dropping to 7 by 16:00 and tapering off to 4 by 17:00. As the sun sets, the index returns to 1 by 19:00, marking a gentle end to a day of vibrant sunlight.

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	9	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	9	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 Alva

Throughout the year, the UV Index reveals significant seasonal fluctuations, with high-risk months occurring from April to August. In this period, the UV Index reaches extreme levels of 11, particularly in May, June, and July, necessitating quick precautions as the burn time can be as brief as 10 minutes. Visitors and residents should be especially vigilant during these months, utilizing sunscreen, wearing protective clothing, and seeking shade during peak hours. As summer fades, the UV levels decrease, but caution remains advisable, particularly in September (UV Index 9) and October (UV Index 7). In the winter months, the UV Index drops to moderate levels, but it’s still essential to protect your skin, as even during these times, burn times can be as short as 30 minutes in January and November. Always stay informed and practice sun safety year-round!

Monthly Maximum UV Index for Alva, United States

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

The table above highlights how UV exposure in Alva 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.

Alva'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
Alva	4	6	7	10	11	11	11	10	9	7	5	3
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