UV Index in Sundumbili, South Africa

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Sundumbili, South Africa, as it plays a significant role in protecting your skin and overall health. With average UV levels rising, especially during peak hours, awareness is key to preventing sunburn and reducing long-term skin damage. Sundumbili's Cfa climate brings warm temperatures and intense sunlight, making it essential to stay informed about daily UV exposure risks. By being proactive, you can enjoy the beautiful outdoors while safeguarding your skin from harmful UV rays.

Hourly UV Index in Sundumbili

The UV Index throughout the day presents a dynamic picture of sun exposure. Early hours from 07:00 to 08:00 are marked by a low index of 1, making sun protection minimal. However, as the day unfolds, the intensity rises sharply; by 09:00, it reaches 3, climbing to a peak of 6 at both 11:00 and 12:00. During this time, it's crucial to take precautions against harmful rays. As the afternoon progresses, the UV Index gradually declines, dropping to 5 at 13:00 and further to 4 by 14:00. By late afternoon, the levels fall to 2 at 15:00 and drop to 1 by 16:00, and the sun's strength wanes completely after 18:00, where it dips to 0. Plan your outdoor activities wisely!

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	6	high	25 min
12:00	6	high	25 min
13:00	5	moderate	30 min
14:00	4	moderate	30 min
15:00	2	low	45 min
16:00	1	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 Sundumbili

Throughout the year, the UV Index exhibits significant seasonal changes, with extreme levels persisting from January to March, peaking at 14. The high-risk months for UV exposure, defined by an index of 9 or higher, include January, February, March, October, November, and December. During these months, the burn time is notably brief, often around 10 minutes for most individuals. As we transition into spring and summer, UV levels decrease slightly, falling to a moderate level of 4 to 5 from June to July, before rising again in August. Visitors and residents are strongly advised to take precautions during high-risk months by wearing sunscreen, protective clothing, and limiting sun exposure to mitigate the risks of UV-related skin damage.

Monthly Maximum UV Index for Sundumbili, South Africa

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

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

Sundumbili's solar exposure compared to other cities in South Africa. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cape Town UVI	14	13	11	8	5	3	4	6	9	11	12	14
Sundumbili	14	14	12	9	6	4	5	7	9	11	13	14
Durban UVI	14	13	12	9	6	4	5	7	9	11	13	15
Johannesburg UVI	15	15	13	10	7	6	6	8	11	12	14	16
Pretoria UVI	16	15	13	10	7	6	6	9	11	13	14	16
Soweto UVI	16	15	13	11	7	6	6	8	11	13	15	16