Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Chorley, United Kingdom, as it serves as a vital indicator of potential sun exposure and its associated risks, including sunburn and long-term skin health issues. With Chorley's Cfb climate, you might not immediately think of intense sun exposure, but UV levels can soar, particularly during midday when they peak at 8. By being aware of these values, you can take proactive steps to protect your skin, ensuring a safe and enjoyable experience outdoors while minimizing the risk of UV-related damage. Stay informed and safeguard your skin by understanding the UV Index in your area!
As the sun rises, the UV Index begins its gradual ascent, starting at a modest 1 at 07:00. The intensity picks up swiftly, reaching 3 by 09:00 and climbing to a noteworthy 5 by 10:00. By 11:00, it peaks at 6, but the real heat hits around 12:00 with a maximum of 7. The index reaches its zenith at 13:00 and 14:00, both clocking in at a strong 8, signaling the need for sun protection. A gentle decline follows, tapering off to 7 at 15:00, then easing further to 5 by 16:00. As the day winds down, the UV Index drops to 4 at 17:00, before settling back to 2 at 18:00 and finally concluding the day at a low 1 by 19:00. Make sure to take precautions during those peak hours to stay safe in the sun!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index values fluctuate significantly, indicating varying levels of sun exposure risk. The high-risk months are from May to August, where the UV Index reaches its peak at 7-8, classifying them as high to very high exposure. Specifically, June and July present the greatest risk, with a burn time of only 15 minutes. In contrast, the winter months (January, February, November, and December) show a low exposure category with UV Index values of 1-2, allowing for longer safe sun exposure (up to 45 minutes). To ensure safety, it is advisable for visitors and residents to take protective measures during the high UV months, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Liverpool UVI | 1 | 2 | 3 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Sheffield UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Chorley | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Birmingham UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| London UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Bristol UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |