Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of White River, South Africa, where the unique Cwa climate brings sunny days and heightened UV exposure. With UV levels peaking at a strong 6 around midday, awareness of these fluctuations helps in preventing sunburn and protecting long-term skin health. As local sunshine can quickly escalate risks, being informed about the UV Index not only encourages safer outdoor activities but also promotes a healthier lifestyle amidst White River's inviting yet potentially harmful rays. Stay vigilant, and enjoy the beautiful outdoors while safeguarding your skin!
The UV Index shows a noticeable rise in intensity as the day unfolds, peaking at 6 around noon. Starting early, the day begins with low levels of 1 at 07:00 and 08:00, indicating minimal risk. By 09:00, the index climbs to 3, marking a moderate level. The sun's rays hit their strongest point at 12:00, when protection is essential. As the afternoon progresses, the index gradually decreases from 5 at 13:00 to 2 by 15:00. By late afternoon and evening, the index drops back down to 1 and then to 0, signaling a safe time to enjoy outdoor activities without the worry of harmful UV exposure. The day underscores the importance of sun protection during the peak hours!
| 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 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 5 | 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 |
The UV Index experiences significant fluctuations throughout the year, with notably high-risk months for sun exposure. From January to March, the UV Index remains extremely high, peaking at 16 in January, which means burn times can be as short as 10 minutes. With April and May, the levels drop slightly but remain in the very high exposure category, with burn times extending to 15 minutes. The UV Index continues to decline in June and July to a high level of 6, allowing for longer exposure times of 25 minutes. However, as the year progresses, August sees a resurgence to a very high index of 8, followed by September and October, which return to extreme levels at 11 and 13, respectively. November and December mirror the early months of the year, with a consistent extreme index, underscoring the need for caution. It is advisable for both residents and visitors to take proactive measures, such as wearing protective clothing and applying sunscreen, particularly during these high-risk months from January to March and again in September and October. Always be mindful of the UV Index to ensure safe sun exposure throughout the year.
UV Risk Categories
| 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 |
| White River | 16 | 15 | 13 | 10 | 8 | 6 | 6 | 8 | 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 |