UV Index in Karlstad, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Karlstad, United States, where the cool climate can lead to underestimating sun exposure. With UV levels peaking at 8 during midday, awareness is vital to prevent sunburn and protect long-term skin health. By recognizing how UV radiation fluctuates throughout the day, you can make informed decisions about sun protection, ensuring your outdoor activities remain safe and enjoyable. The Dfb climate of Karlstad may not scream "beach weather," but the strong ultraviolet rays during certain months can still pose significant risks. Stay informed and safeguard your skin!

Hourly UV Index in Karlstad

As the sun rises, the UV Index starts at a gentle 1 at 07:00, gradually climbing to a moderate 2 by 08:00. By 09:00, it reaches a 3, indicating that sun protection is becoming more important. The day's peak occurs at 12:00, when the UV Index hits a high of 8, prompting caution for prolonged exposure. This intensity remains steady until 14:00, before tapering off slowly. At 15:00, it drops to 7, then decreases to 6 by 16:00, and falls further to 4 at 17:00. As the day winds down, the index retreats to a soothing 2 by 18:00 and concludes at 1 by 19:00, making the evening safe for outdoor strolls. Remember to protect 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	3	moderate	30 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	8	very high	15 min
13:00	8	very high	15 min
14:00	8	very high	15 min
15:00	7	high	25 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Karlstad

Throughout the year, UV Index levels exhibit notable seasonal variations, with marked increases during the spring and summer months. High-risk months are primarily from April to August, where the UV Index ranges from 7 to 9 and the recommended burn time drops to as low as 15 minutes. Residents and visitors should take proactive measures during this period by wearing appropriate sun protection, such as sunscreen, hats, and sunglasses, especially between 10 AM and 4 PM when UV exposure is highest. As the UV Index decreases in the fall and winter months, with levels reaching 2 in January, November, and December, precautions can be less stringent, but awareness remains important year-round.

Monthly Maximum UV Index for Karlstad, United States

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

The table above highlights how UV exposure in Karlstad 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.

Karlstad'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
Karlstad	2	3	5	7	8	9	8	8	7	4	2	2
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