Last updated: May 3, 2025
In Jamestown, Australia, understanding the UV Index plays a crucial role in safeguarding your skin health and preventing sunburns. As a region characterized by a BSk climate, Jamestown experiences distinct variations in UV exposure throughout the day, peaking at a level of 6 around midday. By staying informed about these levels, residents and visitors can take proactive measures against harmful UV rays and enjoy the sun safely. With UV Index readings fluctuating from low in the early morning to moderate and high in the late morning and early afternoon, it’s essential to be aware of the sun’s intensity to protect yourself effectively.
As the sun rises in the morning, the UV Index remains low at 1 from 07:00 to 08:00, making it a safe time for outdoor activities. However, by 09:00, the index climbs to 3, indicating a mild increase in UV radiation. The peak UV intensity is reached at 11:00 and 12:00 with a value of 6, suggesting that protective measures like sunscreen and hats are advisable during these hours. As the afternoon progresses, values drop to 5 at 13:00 and further decline to 3 by 14:00. By 15:00, the index falls to 2, and the UV exposure continues to diminish into the evening, dropping to 0 by 17:00, ensuring a safe environment for an evening stroll. Overall, it's essential to be cautious and enjoy the outdoors at optimal times when the UV index is lower.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 6 | high | 25 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 | 0 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits significant seasonal variations, peaking during the winter and late fall months. From January to March, the index remains in the extreme category, with values ranging from 14 to 15 and a burn time of just 10 minutes, making these the highest risk months for UV exposure. In April, the index drops slightly to 9, shifting to very high, and maintaining that level through September. Meanwhile, June and July see a moderate index of 4, offering some relief. However, as October approaches, the UV Index rises again to 11, remaining in the extreme category until December, which peaks at 16. Visitors and residents are strongly advised to take precautions during these high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially when heading outdoors.
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 |
| Jamestown | 15 | 14 | 12 | 9 | 6 | 4 | 4 | 6 | 8 | 11 | 13 | 16 |
| Brisbane UVI | 15 | 15 | 13 | 10 | 7 | 5 | 5 | 8 | 9 | 12 | 14 | 15 |