UV Index in Grabouw, South Africa

Last updated: June 2, 2025

In Grabouw, South Africa, being aware of the UV Index is essential for protecting your skin and overall health. Understanding UV levels helps residents and visitors alike prevent sunburn, reduce the risk of skin cancer, and maintain long-term skin health. With Grabouw's temperate maritime climate (Csb), UV exposure can vary throughout the day, peaking during midday hours when the index can reach around 3. Staying informed about these levels will empower you to enjoy the beautiful outdoors safely while minimizing the risks associated with sun exposure.

Hourly UV Index in Grabouw

The UV Index throughout the day reveals a gradual increase in sun intensity, peaking mid-afternoon. Starting at 0 at 07:00, the index rises to 1 by 08:00 and remains moderate at 1 for the following hour. As the sun ascends, the intensity reaches 2 by 10:00, climbing further to 3 at 11:00, sustaining this level until 14:00. After this peak, a gentle decline begins, with the index dropping to 2 at 15:00, and gradually easing back to 1 by 17:00, before retreating to 0 by 18:00. For anyone spending time outdoors, the late morning to early afternoon presents the highest UV exposure; thus, caution and sun protection are highly advisable during these 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	0	low	45 min
08:00	1	low	45 min
09:00	1	low	45 min
10:00	2	low	45 min
11:00	3	moderate	30 min
12:00	3	moderate	30 min
13:00	3	moderate	30 min
14:00	3	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 Grabouw

The UV Index experiences significant fluctuations throughout the year, with the highest levels occurring from January to March and then again in October and November, all categorized as extreme with a rapid burn time of just 10 minutes. April and August see a dip into the high range, while May, June, and July are classified as moderate, allowing longer burn times of 30 minutes. Visitors and residents should be particularly cautious from January to March and again in October and November, as these are high-risk months for UV exposure. It's advisable to seek shade, wear protective clothing, and use sunscreen when spending time outdoors during these periods to minimize the risk of skin damage.

Monthly Maximum UV Index for Grabouw, South Africa

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

The table above highlights how UV exposure in Grabouw 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.

Grabouw'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
Grabouw	14	13	11	7	5	3	4	6	9	11	12	14
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
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