UV Index in Fort Yukon, United States

Last updated: June 2, 2025

Understanding the UV Index in Fort Yukon, United States is essential for maintaining skin health and preventing sunburn, especially given the region's unique climate. With its cool and moderately continental subarctic climate (Dfc), Fort Yukon experiences fluctuating UV exposure levels that can impact both residents and visitors. Recognizing the daily UV levels, especially when they peak at 5 between 1 PM and 3 PM, empowers you to take protective measures, ensuring your outdoor activities remain enjoyable and safe. Stay informed, stay protected, and make the most of the sunny days in this beautiful Alaskan town!

Hourly UV Index in Fort Yukon

As the day unfolds, the UV Index rises steadily, peaking between 1 PM and 3 PM where it reaches a maximum of 5. Starting from a gentle 1 at 7 AM, the index climbs to 2 by 8 AM and 3 by 10 AM, hinting at increasing sun exposure. By 11 AM, it escalates to 4, suggesting that precautions might be wise for those enjoying outdoor activities. With this trend continuing, the UV Index holds at 5 during the afternoon, signaling high levels of UV radiation that demand protective measures. As the sun begins to set, the index gradually descends back to 2 by 6 PM, making the later hours more forgiving. Remember to safeguard your skin 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	2	low	45 min
09:00	2	low	45 min
10:00	3	moderate	30 min
11:00	4	moderate	30 min
12:00	4	moderate	30 min
13:00	5	moderate	30 min
14:00	5	moderate	30 min
15:00	5	moderate	30 min
16:00	4	moderate	30 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	2	low	45 min

Monthly UV Index Trends in Fort Yukon

Throughout the year, UV levels fluctuate significantly, with heightened risks occurring primarily from April to August. During these months, the UV Index reaches a moderate level of 3 to 5, indicating a reduced burn time of just 30 minutes for unprotected skin. Conversely, from January to March and October to December, the UV Index remains low (1), allowing for a safer, more leisurely outdoor experience with a burn time of 45 minutes. Residents and visitors are advised to take extra precautions, such as wearing sunscreen and protective clothing, especially during the high-risk months of April through August. Remain vigilant, as UV rays can still cause damage, even on seemingly mild days.

Monthly Maximum UV Index for Fort Yukon, United States

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

The table above highlights how UV exposure in Fort Yukon 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.

Fort Yukon'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
Fort Yukon	1	1	2	3	5	5	5	4	3	1	1	1
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