UV Index in Juba, South Sudan

Last updated: May 3, 2025

Understanding the UV Index is essential for residents of Juba, South Sudan, where the intense sun can pose significant risks to skin health. With an Aw climate, characterized by hot temperatures and strong solar radiation, being mindful of UV levels helps prevent sunburn and long-term skin damage. The UV Index peaks dramatically throughout the day, particularly between 10 a.m. and 2 p.m., reaching extreme levels as high as 14. It's crucial for everyone to be aware of these fluctuations to stay safe and protect their skin while enjoying the vibrant outdoor lifestyle that Juba offers.

Hourly UV Index in Juba

As the sun rises, the UV Index begins to climb steadily. At 07:00, it starts at a modest 1, indicating low levels of UV radiation. By 08:00, it jumps to 4, inching closer to moderate levels. The intensity peaks spectacularly at 12:00, reaching 14, signaling a critical need for sun protection. As the afternoon progresses, the UV Index gradually decreases: 12:00 and 13:00 remain high at 14 and 12, respectively, before dipping to 9 at 14:00. By late afternoon, the risk recedes to 5 at 15:00 and continues to decline, falling to 1 by 17:00 and finally to a safe 0 by 18:00. This data highlights the importance of being sun-smart during the midday 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	4	moderate	30 min
09:00	7	high	25 min
10:00	11	extreme	10 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	12	extreme	10 min
14:00	9	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 Juba

Throughout the year, the UV Index consistently remains at an extreme level from January to June, with values peaking in March and April at 15. As summer progresses, the index begins to decrease slightly but stays at a high level, particularly between July and September. The high-risk months for UV exposure are from January to May, especially during March and April. Residents and visitors should take precautions by wearing protective clothing, applying broad-spectrum sunscreen, and limiting direct sun exposure, especially during peak hours. In the latter part of the year, while the UV Index decreases, vigilance is still important, particularly in November with an index of 11. Always remain aware of the UV index and protect your skin accordingly for health and safety.

Monthly Maximum UV Index for Juba, South Sudan

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

The table above highlights how UV exposure in Juba 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.

Juba'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	12	14	15	15	14	12	11	13	13	12	11	10
Yei UVI	13	14	15	15	14	13	12	13	13	12	12	11