Last updated: June 2, 2025
In St. Georges Basin, Australia, staying aware of the UV Index is crucial for protecting your skin and overall health. Understanding the daily fluctuations in UV levels can significantly aid in sunburn prevention and reduce the long-term risks associated with skin damage. With a mild Cfb climate, locals and visitors alike experience varying UV exposure throughout the day, especially around midday when levels peak. Being informed allows you to enjoy the beautiful outdoors while safeguarding your skin from harmful effects—because in sunny St. Georges Basin, knowledge is your best defense against UV radiation!
The UV Index throughout the day showcases a gradual rise and fall in intensity. Starting early morning at 07:00 with a maximum of 1, the index remains steady at this low level until 10:00, when it edges up to 2. The peak UV exposure occurs between 11:00 and 13:00, reaching a maximum of 3, signaling a time when sun protection is essential. As the day progresses, the UV Index begins to decline, dropping back to 2 by 14:00 and falling to 1 by 15:00. By 17:00, the index plummets to 0, marking the end of significant UV exposure for the day. Remember, even when UV levels are low, it's always wise to take precautions!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | 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 | 2 | low | 45 min |
| 15:00 | 1 | low | 45 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 0 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV levels fluctuate significantly, with the highest risk months being January through March and November through December, all categorized as extreme exposure. Specifically, from January to March, the UV Index reaches as high as 15, indicating a burn time of just 10 minutes. The month of April, while slightly lower at 8, remains in the very high range, requiring vigilance with a burn time of 15 minutes. Mid-year months, like May through August, see a drop in UV Index levels to a more manageable 3 to 5, classified as moderate, allowing for longer exposure times of 30 minutes. However, as autumn approaches in September and October, UV levels rise again to very high, with a burn time of 15 minutes. It is crucial for both residents and visitors to stay informed and take appropriate precautions, especially during the extreme months, such as applying sunscreen, wearing protective clothing, and minimizing sun exposure during peak hours.
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 |
| St. Georges Basin | 15 | 13 | 12 | 8 | 5 | 3 | 4 | 5 | 8 | 10 | 12 | 14 |
| 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 |
| Brisbane UVI | 15 | 15 | 13 | 10 | 7 | 5 | 5 | 8 | 9 | 12 | 14 | 15 |