UV Index in Twentynine Palms, United States

Last updated: June 2, 2025

In Twentynine Palms, understanding the UV Index is crucial for safeguarding your skin and overall health. With a climate characterized by the BWk arid zone, residents and visitors alike face unique challenges when it comes to sun exposure. The UV levels here can soar to a peak of 12 around noon, making awareness of these levels essential for preventing sunburn and protecting long-term skin health. By being mindful of the UV Index, you can enjoy Twentynine Palms’ vibrant outdoor activities while keeping your skin safe from harmful rays.

Hourly UV Index in Twentynine Palms

The UV Index reaches its peak intensity as the sun ascends, starting the day at a mild 1 at 7:00 AM. By 10:00 AM, it escalates dramatically to 8, marking the transition into high-risk territory. The highest reading, a blistering 12, is recorded at noon and remains unyielding until 1:00 PM. As the afternoon wears on, the index begins to taper off, dipping to 11 at 2:00 PM, and gradually descending to 3 by 5:00 PM. This decline continues into the evening, with values falling to 1 by 7:00 PM. It's a vivid reminder of the sun's strength during midday, urging caution and protection during those peak hours!

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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Twentynine Palms

As we observe seasonal changes in the UV Index, it becomes clear that higher levels of ultraviolet radiation occur during the warmer months. The high-risk months peak from March to August, with May and June reaching extreme levels (UV Index 11-12) and burn times as low as 10 minutes. Visitors and residents are strongly advised to take precautions during these months by seeking shade, wearing protective clothing, and using sunscreen, especially between 10 AM and 4 PM when UV exposure is at its highest. January, November, and December are comparatively safer, with moderate UV levels (Index 4-5) and longer burn times of 30 minutes. Staying informed about the UV Index is essential for maintaining skin health year-round.

Monthly Maximum UV Index for Twentynine Palms, United States

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

The table above highlights how UV exposure in Twentynine Palms 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.

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