UV Index in Barrow, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Barrow, Alaska, where the unique climate can pose specific sun exposure risks even in seemingly mild conditions. With UV levels peaking at 5 during midday hours, awareness of these fluctuations is essential for preventing sunburn and promoting long-term skin health. In Barrow's polar tundra climate, the potential for UV radiation can catch some off guard, particularly during the brighter summer months. Stay informed to protect your skin and enjoy all that the stunning landscapes of Barrow have to offer!

Hourly UV Index in Barrow

The UV Index rises steadily throughout the morning, starting at a gentle 1 at 07:00 and 08:00. As the sun climbs higher, it reaches a moderate 2 by 09:00, before peaking at 4 between 12:00 and 13:00. The afternoon brings the highest intensity, with the index soaring to 5 during the prime hours of 14:00 and 15:00. As the day transitions into the evening, the UV levels gracefully decline, returning to a comfortable 2 by 19:00. It's essential to be mindful of sun protection during those midday hours when UV exposure can significantly increase.

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	2	low	45 min
10:00	3	moderate	30 min
11:00	3	moderate	30 min
12:00	4	moderate	30 min
13:00	4	moderate	30 min
14:00	5	moderate	30 min
15:00	5	moderate	30 min
16:00	4	moderate	30 min
17:00	4	moderate	30 min
18:00	3	moderate	30 min
19:00	2	low	45 min

Monthly UV Index Trends in Barrow

Throughout the year, the UV Index experiences notable seasonal changes, impacting the risk of sunburn and the need for sun protection. From January to February, the UV Index remains low (1), allowing for a safe outdoor experience with a burn time of 45 minutes. However, as spring approaches, the index gradually increases, reaching a moderate level of 3 in April and peaking at 5 from May to July, indicating higher risk months for sun exposure. In August, the UV Index slightly decreases to 4, leading into a return to lower indices of 2 in September and 1 in October and November, while December sees an index of 0, marking minimal risk. Visitors and residents should prioritize sun safety precautions, especially during the high-risk months of May to July, by wearing protective clothing, applying sunscreen, and seeking shade during peak sun hours.

Monthly Maximum UV Index for Barrow, United States

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

The table above highlights how UV exposure in Barrow 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.

Barrow'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
Barrow	1	1	2	3	5	5	5	4	2	1	1	0
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