UV Index in Greytown, South Africa

Last updated: August 1, 2025

In Greytown, South Africa, awareness of the UV Index is crucial for safeguarding your skin and overall health. Understanding the UV levels in your area can help in preventing sunburn and reducing the risk of long-term skin damage. With a Cfb climate that brings both sunny and overcast days, Greytown experiences varying UV exposure risks throughout the day. Notably, midday hours, particularly from 11:00 to 13:00, can reach a UV Index of 5, signaling the need for protective measures to enjoy the sun safely. Stay informed and protect your skin!

Hourly UV Index in Greytown

The UV Index for today reveals a dynamic day filled with fluctuating sun exposure. Early morning hours start off mild, with levels at 1 from 07:00 to 08:00, ideal for gentle outdoor activities. As the sun climbs, the index rises to 2 by 09:00 and peaks at 5 between 11:00 and 13:00, signaling a strong need for sunscreen and protective gear during midday. Fortunately, the intensity begins to dip after 14:00, descending back to 3 and eventually settling at 1 by late afternoon. As twilight approaches, the UV Index falls to 0, providing a safe window for evening strolls. Remember to stay protected when the sun is at its strongest!

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	4	moderate	30 min
10:00	6	high	25 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	7	high	25 min
14:00	5	moderate	30 min
15:00	3	moderate	30 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 Greytown

Throughout the year, UV index levels demonstrate significant seasonal variations. The highest risk months for UV exposure are January, February, March, October, November, and December, all classified with an extreme UV index of 15 or higher. During these months, the burn time is as short as 10 minutes, necessitating diligent sun protection measures. In April, the UV index drops slightly to 10 (very high), before further decreasing to 6 in May and 5 in June and July (both moderate). As the summer months wind down, August sees a rise to 8 (very high), followed by September returning to 10. With temperatures warming and outdoor activities becoming more frequent, visitors and residents are strongly advised to take precautions such as wearing sunscreen, protective clothing, and seeking shade, particularly during the extreme months to mitigate the risk of harmful UV exposure.

Monthly Maximum UV Index for Greytown, South Africa

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

The table above highlights how UV exposure in Greytown 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.

Greytown'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
Greytown	15	15	12	10	6	5	5	8	10	12	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