UV Index in Secunda, South Africa

Last updated: June 2, 2025

Understanding the UV Index in Secunda, South Africa is crucial for protecting your skin and overall health. With the potential for sunburn and long-term skin damage, being aware of daily UV levels helps you take proactive steps when spending time outdoors. Secunda's Cwb climate typically sees varied UV exposure throughout the day, peaking at around noon with an index value of 6, indicating higher risks of harm during those hours. By staying informed about the UV Index, you can enjoy the sun safely while minimizing adverse effects on your skin.

Hourly UV Index in Secunda

The UV Index today showcased a notable increase from the early morning hours, starting at a gentle 1 at 07:00 and 08:00. As the sun rose higher in the sky, the index climbed steadily, reaching a significant 6 by 12:00, indicating a peak in UV radiation and the need for sun protection. The afternoon saw a slight decline, with values dropping to 4 at 14:00 and falling further to 2 by 15:00. As the day wound down, the UV index returned to a safer range, ending the day at 0 by 19:00. It’s crucial to stay informed and safeguard your skin during those high UV 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	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	5	moderate	30 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 Secunda

Throughout the year, UV Index levels experience significant fluctuations, with January to April marked by extreme exposure (UV Index 16-11) where a burn can occur in just 10 minutes. This trend continues with a brief relief during May and June, where the UV Index drops to very high and high levels (8 and 6, respectively), allowing for slightly longer safe exposure times of 15 to 25 minutes. However, September through November sees a return to extreme levels, with burn times again reverting to just 10 minutes. For residents and visitors, it is crucial to remain vigilant during the high-risk months of January to April and September to November, ensuring proper sun protection measures such as wearing sunscreen, hats, and protective clothing to mitigate the risks associated with high UV exposure.

Monthly Maximum UV Index for Secunda, South Africa

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

The table above highlights how UV exposure in Secunda 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.

Secunda'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
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
Secunda	16	15	13	11	8	6	6	9	11	13	14	15
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