UV Index in Yei, South Sudan

Last updated: June 2, 2025

Understanding the UV Index is essential for the residents of Yei, South Sudan, as it provides vital information about sun exposure and its potential risks. With Yei's tropical climate, the UV levels can soar, peaking at an alarming UV Index of 13 during midday hours. This highlights the critical need for awareness about sun protection to prevent sunburn and long-term skin health issues. By keeping track of the UV Index, locals can take necessary precautions, ensuring safe outdoor activities while safeguarding their skin against the harmful effects of excessive UV exposure.

Hourly UV Index in Yei

The UV Index data reveals a dramatic rise in intensity as the day progresses. Starting off at a low 1 at 07:00, the index steadily climbs, reaching a peak of 13 at 12:00. This indicates a high risk of harm from unprotected sun exposure during midday. As the afternoon unfolds, the index begins to taper off, dropping to 5 by 15:00, and falling further to 1 by 17:00. By evening, the UV Index diminishes to 0, signaling a safe period for outdoor activities without the worry of harmful UV rays. Stay protected during those peak hours, especially between 11:00 and 13:00!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Yei

The seasonal UV changes indicate that from January to May, the UV Index consistently peaks between 13 and 15, categorizing exposure as extreme with a burn time of just 10 minutes. This high-risk period continues into June and July but sees a slight decline in the UV index, settling at 12 and 13, respectively. August and September maintain similar levels, reinforcing the need for caution. The risk gradually decreases as we move into October and November, where the UV Index lowers to 12 and 12, and finally to 11 in December. Given these figures, it is highly recommended for visitors and residents to take protective measures, especially during the months of January through May, when the chances of sunburn are at their highest. Always apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak sun hours to minimize UV exposure and ensure safety throughout the year.

Monthly Maximum UV Index for Yei, South Sudan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Yei. 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 Yei, 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 Yei UV Index with Other South Sudan Cities

The table above highlights how UV exposure in Yei compares to other major locations across South Sudan. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Yei's solar exposure compared to other cities in South Sudan. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Malakal UVI	11	12	13	14	13	12	13	14	13	12	10	10
Winejok UVI	11	12	13	14	13	12	13	14	13	12	10	10
Wau UVI	11	13	13	14	14	12	13	14	14	12	10	10
Juba UVI	12	14	15	15	14	12	11	13	13	12	11	10
Yei	13	14	15	15	14	13	12	13	13	12	12	11