Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Merrijig, Australia, as it serves as a vital indicator of ultraviolet radiation levels that can impact skin health. With the region's Cfb climate offering a mix of seasonal weather, awareness of UV levels is essential for sunburn prevention and reducing long-term skin damage. During peak hours, particularly between 11 AM and 2 PM, the UV Index in Merrijig can rise to a moderate level of 3, indicating the need for protective measures. By familiarizing yourself with the local UV Index, you can enjoy the beautiful outdoor offerings of Merrijig while safeguarding your skin against potential harm.
The UV Index throughout the day showcases a dynamic range of sunlight intensity, starting from a maximum of 3 between 11:00 AM and 1:00 PM. Early risers will encounter minimal exposure at 07:00 with a value of 0 before it gradually rises to 1 by 08:00 and 09:00. By 10:00, the index reaches 2, indicating a moderate level of UV radiation, and peaks at 3 during the late morning to early afternoon. As the sun begins its descent, the index declines, dropping back to 2 by 14:00 before tapering off to 1 from 15:00 until 17:00, and finally returning to 0 by 18:00. Overall, this UVI data suggests a cautious approach to sun exposure during peak hours, especially from 11:00 AM to 1:00 PM, when sunscreen and protective clothing are advisable.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | 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 |
The UV Index experiences significant fluctuations throughout the year, with the highest risk months occurring from January to March and again in November and December, where the index peaks at 14 and classifies as extreme, allowing for a burn time of just 10 minutes. As spring approaches, the index decreases in April to 7 (high) and further moderates to 5 in May and 3 from June to July, suggesting a safer outdoor environment. However, caution is still warranted in September and October as the index rises again to 8 and 9 (very high) respectively, with burn times of 15 minutes. Residents and visitors are strongly advised to practice sun safety measures—such as wearing sunscreen, protective clothing, and seeking shade—especially during the extreme months and when the index climbs back in the autumn. Regular checking of the UV Index can help ensure a safer outdoor experience year-round.
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 |
| Merrijig | 14 | 12 | 11 | 7 | 5 | 3 | 3 | 5 | 8 | 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 |
| Brisbane UVI | 15 | 15 | 13 | 10 | 7 | 5 | 5 | 8 | 9 | 12 | 14 | 15 |