Last updated: June 2, 2025
In Holywell, United Kingdom, being aware of the UV Index is essential for safeguarding your skin and overall health. With the region's Cfb climate, residents and visitors alike can experience varying UV exposure levels, especially during the warmer months. Understanding these levels is crucial for preventing sunburn and protecting against long-term skin damage. Holywell typically sees midday UV indices peak at 8, indicating a high potential for harmful effects—knowing this can help you take proactive measures to enjoy the sun safely!
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 at 07:00. By 09:00, it gradually ramps up to 3, signaling the start of a moderately sunny day. The index peaks at 8 from 12:00 to 14:00, reminding everyone to take care as midday rays can be intense. Following this peak, the UV levels begin to decline sharply, dropping to 7 at 15:00 and further to 4 by 17:00. As the sun sets, the UV Index falls back to 2 at 18:00 and settles at 1 by 19:00, marking the end of the day’s solar intensity. Stay sun-safe and enjoy the rays while they last!
| 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 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 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 exposure significantly varies, with the highest risk months falling between May and August. In May, the UV Index reaches 7 (high), indicating a burn time of just 25 minutes, while June and July peak at 8 (very high), reducing burn time further to just 15 minutes. As summer fades, UV levels decrease, dropping to 5 in September and 4 in October, before returning to low levels of 1 or 2 during the winter months of November to February. Visitors and residents should be particularly vigilant during the high-risk months, ensuring proper sun protection, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday when the sun's intensity is greatest.
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 |
| Holywell | 1 | 2 | 3 | 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 |