UV Index in Big Timber, United States

Last updated: July 2, 2025

Understanding the UV Index in Big Timber, United States, is essential for protecting your skin and maintaining overall health. With high UV levels—peaking at 10 during midday—being aware of these fluctuations can help you prevent sunburn and reduce long-term skin damage. Big Timber, characterized by its Dfb climate, typically experiences a mix of warm summers and cold winters, leading to varying UV exposure risks throughout the year. Make informed decisions by checking the UV Index regularly to enjoy the outdoors safely!

Hourly UV Index in Big Timber

At dawn, the UV Index begins its climb, starting at a mild 1 at 07:00. As the sun rises higher, it steadily ascends, reaching 2 by 08:00 and escalating to 3 by 09:00. The peak of the day arrives at noon with a striking 9, just before it hits its maximum of 10 from 13:00 to 14:00, signifying a need for sun protection. The intensity begins to taper off after that, dropping to 9 at 15:00, then descending through 7 at 16:00, and winding down to 4 by 17:00. As evening approaches, the UV Index dwindles to 3 by 18:00 and finally returns to 1 by 19:00, illustrating the clear and powerful influence of the sun throughout the day.

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	9	very high	15 min
16:00	7	high	25 min
17:00	4	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Big Timber

Throughout the year, the UV Index exhibits notable seasonal variations, with significant peaks during the warmer months. The high-risk months for UV exposure are primarily from April to September, where the index reaches very high to extreme levels, particularly in June with a peak index of 11. During these months, burn times are significantly reduced, ranging from 10 to 15 minutes. Visitors and residents are advised to take extra precautions during this period by seeking shade, wearing protective clothing, and applying sunscreen regularly. January, February, and November present moderate exposure, allowing for longer burn times of up to 30 minutes, while December offers the lowest risk with a low UV index and a burn time of 45 minutes. Awareness of these changes is crucial for minimizing the risk of UV exposure and ensuring safe outdoor activities throughout the year.

Monthly Maximum UV Index for Big Timber, United States

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

The table above highlights how UV exposure in Big Timber 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.

Big Timber'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
Big Timber	3	5	7	9	10	11	10	10	8	6	3	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