UV Index in Tonalea, United States

Last updated: June 2, 2025

In Tonalea, understanding the UV Index is crucial for safeguarding your skin and overall health. With the area's arid climate in the BSk zone, high UV exposure can lead to severe sunburn and long-term skin issues. Knowing the daily UV levels—especially when peak measurements reach as high as 13 around noon—can help you take necessary precautions to protect yourself and enjoy outdoor activities safely. By staying informed about UV risks, you empower yourself to bask in the sun responsibly, ensuring that your time under the Arizona skies is both enjoyable and safe.

Hourly UV Index in Tonalea

The UV Index for today reveals a dramatic rise in sunlight intensity as the day progresses. From a gentle start at 07:00 with a value of 2, the index climbs steadily to reach a peak of 13 by 12:00. 11:00 marks the onset of extreme caution, hitting 11, and swiftly moves to its highest point at 12:00. As the afternoon unfolds, the sun’s intensity begins to wane, dropping to 11 at 14:00, then gradually decreasing to 5 by 16:00. By the evening, the index returns to a low of 1 at both 18:00 and 19:00. Remember, during those peak hours, it's essential to protect your skin and stay hydrated!

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	2	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 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 Tonalea

Throughout the year, seasonal UV changes significantly impact sun exposure and potential health risks. The highest risk months are from March to September, where the UV Index peaks at 13 in June and July, falling into the extreme exposure category with a quick burn time of just 10 minutes. Visitors and residents should be particularly vigilant during these months, adhering to sun safety guidelines such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours. As the year progresses towards the winter months, UV exposure decreases; with indices dropping to moderate levels in January, November, and December. However, the risk remains present, so caution is advised year-round.

Monthly Maximum UV Index for Tonalea, United States

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

The table above highlights how UV exposure in Tonalea 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.

Tonalea'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
Tonalea	4	6	9	11	12	13	13	12	11	8	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5