Last updated: May 3, 2025
In Port Denison, Australia, understanding the UV Index is crucial for protecting your skin from harmful solar radiation. With intense sun exposure, particularly during the summer months, it's vital to be aware of the UV levels to prevent sunburn and safeguard your long-term skin health. Typically, UV levels peak between 11:00 AM and 1:00 PM, reaching a maximum of 7 — a clear indication of the heightened risk during these hours. Given Port Denison's Csa climate, characterized by warm summers, residents and visitors alike should stay informed and take preventive measures to enjoy the outdoors safely while minimizing skin damage.
The UV Index data for the day reveals a notable peak around noon, reaching a maximum of 7, indicating a high level of sun exposure. The morning begins with a mild index, starting at 1 at 07:00 and 08:00. By 09:00, it rises to 2, slowly climbing to 4 by 10:00. The intensity escalates significantly by 11:00 and hits its zenith at 12:00. After that, the UV levels gradually decline, dropping to 6 at 13:00 and 5 at 14:00, before falling to 3 by 15:00. As the evening approaches, the UV Index decreases rapidly, returning to 1 by 16:00 and reaching 0 by 18:00, signaling an end to the sun's harmful rays for the day. Remember to stay protected during those peak 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 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 6 | 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 |
Throughout the year, UV Index values fluctuate significantly, peaking during the winter months (January to March) with extreme readings of 15 to 12 and a burn time as short as 10 minutes. The spring sees a decrease, with April dropping to 10 (very high) and burn time extending to 15 minutes. By May, UV levels fall to 7 (high) and continue to remain moderate (UV Index of 5) during the summer months of June and July. Conversely, a slight increase is observed in August and September, where UV levels reach 7 and 9, respectively, with moderate to very high risk categories. In the final quarter, October to December return to extreme levels of 12 to 14, with quick burn times of 10 minutes. Visitors and residents should take proper precautions during the high-risk months of January, February, March, October, November, and December, such as wearing sunscreen, protective clothing, and seeking shade to minimize 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 |
| Port Denison | 15 | 14 | 12 | 10 | 7 | 5 | 5 | 7 | 9 | 12 | 14 | 14 |
| Brisbane UVI | 15 | 15 | 13 | 10 | 7 | 5 | 5 | 8 | 9 | 12 | 14 | 15 |