UV Index in Green River, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Green River, United States, as it serves as a vital indicator of the sun's UV radiation levels throughout the day. Awareness of these levels is essential for preventing sunburn and protecting skin health, especially as Green River's semi-arid climate can lead to higher UV exposure during the hot summer months. With peak UV Index values reaching as high as 11 around midday, it’s important to take necessary precautions to safeguard your skin while enjoying the outdoors. Stay informed and maximize your sun safety by regularly checking the UV Index!

Hourly UV Index in Green River

The UV Index for today shows a dramatic rise as the sun ascends into the sky. Starting at a mild 1 by 07:00, the index gradually builds, reaching 3 by 09:00 and peaking at an intense 11 at 13:00—a level where sun protection is crucial. From this pinnacle, the values start to decline, tapering off to 10 at 14:00 and then gradually decreasing through the afternoon and evening, with values of 6 at 16:00 and sliding down to 1 by 19:00. Plan your outdoor activities accordingly, and 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	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	9	very high	15 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 Green River

Throughout the year, the UV Index experiences significant fluctuations, with the highest values occurring from April to August. During this period, particularly in May and June, the UV Index peaks at 12, classifying it as extreme and allowing for a burn time of only 10 minutes. The high-risk months are thus identified as April, May, June, July, and August, where exposure to UV radiation can lead to skin damage if precautions are not taken. Visitors and residents are strongly advised to practice sun safety by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours to minimize the risk of sunburn and long-term skin damage. As the UV Index decreases towards the end of the year, individuals can enjoy more moderate exposure during November and December, when the risk is considerably lower.

Monthly Maximum UV Index for Green River, United States

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

The table above highlights how UV exposure in Green River 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.

Green River'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
Green River	4	6	7	10	11	12	12	11	9	7	4	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5