Last updated: July 2, 2025
Understanding the UV Index is essential for residents of Collarenebri, Australia, where the hot semi-arid climate can lead to consistently high levels of sun exposure. Being aware of UV levels helps in preventing sunburn and safeguarding skin health, especially during the peak hours between 10 AM and 2 PM when the UV Index can reach as high as 5. With the sun's intensity varying throughout the day, it's crucial for locals to stay informed about these levels to ensure safe outdoor activities and protect themselves from potential skin damage.
The UV Index throughout the day presents an intriguing pattern of intensity and fluctuation. Starting early, at 07:00 and 08:00, the levels remain low at 1, providing a gentle reminder to ease into the day. As the sun climbs higher, the index steadily increases, peaking at 12:00 and 13:00 with a notable 5, urging sun-seekers to take precautions. The afternoon sees a slight dip, with values dropping to 3 by 14:00 and 2 by 15:00. As the sun begins to set, the UV Index declines significantly, returning to 1 by 16:00 and ultimately reaching 0 after 18:00. This data underscores the importance of timing for outdoor activities, with the midday hours proving to be the most intense. ☀️
| 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 | 3 | moderate | 30 min |
| 11:00 | 4 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 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 |
Throughout the year, UV Index values fluctuate significantly, with the highest risk months occurring from January to March and again in October to November, where the UV Index consistently reaches extreme levels of 15 or 14, requiring caution due to a burn time of just 10 minutes. April sees a decline to a very high index of 10, while May and August shift to high levels of 7 and 8, extending burn times to 25 minutes. From June to July, the index remains moderate, allowing for a safer exposure time of 30 minutes. As autumn approaches, the index peaks again in September at 9, indicating very high risk before returning to extreme values in October and November. Therefore, visitors and residents should prioritize protective measures such as applying sunscreen, wearing protective clothing, and seeking shade, especially during the high-risk months to minimize skin damage from UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Melbourne UVI | 14 | 12 | 11 | 7 | 4 | 3 | 3 | 5 | 7 | 9 | 12 | 14 |
| Adelaide UVI | 14 | 13 | 12 | 8 | 5 | 3 | 4 | 5 | 7 | 10 | 12 | 15 |
| Sydney UVI | 14 | 13 | 11 | 8 | 5 | 3 | 4 | 6 | 8 | 10 | 12 | 14 |
| Perth UVI | 14 | 14 | 11 | 9 | 6 | 4 | 4 | 6 | 8 | 11 | 13 | 14 |
| Collarenebri | 15 | 15 | 13 | 10 | 7 | 4 | 5 | 7 | 9 | 12 | 14 | 15 |
| Brisbane UVI | 15 | 15 | 13 | 10 | 7 | 5 | 5 | 8 | 9 | 12 | 14 | 15 |