Last updated: July 2, 2025
Understanding the UV Index is essential for residents and visitors in Gundaroo, Australia, where varying levels of sun exposure can significantly impact skin health. As UV rays can lead to sunburn and increase the risk of skin cancer, being aware of daily UV levels allows individuals to take proactive measures for protection. Gundaroo's Cfb climate means that, while the area experiences mild weather, the UV Index can still reach moderate levels, particularly during midday hours. By staying informed about UV levels, you can enjoy the outdoors safely while minimizing potential risks associated with sun exposure.
The UV Index throughout the day showcases a steady rise and fall in intensity. Early morning hours, from 07:00 to 09:00, experience minimal exposure, with values hovering around 1. As the sun climbs higher, the index peaks at 12:00 with a notable 4, marking the late morning as the prime time for sun protection. This intensity wanes as we move into the afternoon; by 15:00, it dips back to 2, before tapering off to negligible levels of 1 by 17:00 and 0 after 18:00. For those planning outdoor activities, it’s best to be mindful of UV levels, particularly during the midday hours!
| 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 | 2 | low | 45 min |
| 11:00 | 3 | moderate | 30 min |
| 12:00 | 4 | 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 |
Throughout the year, the UV Index experiences significant fluctuations, with the highest levels occurring in the winter months. January, February, and March all maintain an extreme UV Index of 15, 13, and 12 respectively, allowing only 10 minutes of sun exposure before risk of skin burn increases. As the seasons transition into April and September, the UV levels drop slightly to 8 (very high) with a burn time of 15 minutes. In contrast, the summer months of May to August see a moderate UV Index ranging from 3 to 5, allowing for longer exposure times of 30 minutes. A notable spike occurs again in November and December, bringing us back to extreme levels of 13 and 15, respectively. Residents and visitors should remain vigilant during the high-risk months of January, February, March, November, and December by applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade to minimize the risk of UV-related skin damage.
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 |
| Gundaroo | 15 | 13 | 12 | 8 | 5 | 3 | 4 | 5 | 8 | 10 | 13 | 15 |
| Perth UVI | 14 | 14 | 11 | 9 | 6 | 4 | 4 | 6 | 8 | 11 | 13 | 14 |
| Brisbane UVI | 15 | 15 | 13 | 10 | 7 | 5 | 5 | 8 | 9 | 12 | 14 | 15 |