Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Tetbury, United Kingdom, where the climate can lead to varying levels of sun exposure throughout the year. The UV Index helps gauge the strength of ultraviolet rays on a given day, empowering you to make informed decisions about sun protection. By being aware of UV levels, you can prevent painful sunburns and safeguard your skin health, especially when the index peaks around midday, reaching values of 8 from 12:00 PM to 2:00 PM. With Tetbury's temperate oceanic climate, it's essential to stay vigilant about UV risks, particularly during sunnier days, to enjoy the outdoors safely and healthily.
The hourly UV Index data reveals a fascinating story of sun exposure throughout the day. Starting at 1 at 07:00, the index steadily climbs to 8 by 12:00, reaching its peak intensity during the peak sun hours from 12:00 to 14:00. Here, the UV levels maintain a high 8, urging sun lovers to take precautions against harmful rays. As the afternoon transitions into the evening, the index gradually declines, tapering off to 4 by 17:00, and finally sinking back to 1 by 19:00. This data makes it clear: the sun's reach is strongest mid-day, and mindful sun safety is essential for those enjoying outdoor activities during these hours.
| 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 | 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 varies significantly, with notable increases during the spring and summer months. From January to February, the UV Index remains low (1-2), allowing for safer outdoor activities with a burn time of 45 minutes. As we progress into March and April, the levels rise to a moderate range (4-5), reducing burn time to 30 minutes. The high-risk months of May through August see a dramatic increase, with UV Index values reaching 7-8 (high to very high), which significantly shortens burn time to 15-25 minutes. Finally, from September to October, the risk decreases as the UV Index drops to moderate levels (4-6), returning to safer exposure times. Visitors and residents are advised to take precautions during high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially during midday hours, to minimize the risk of skin damage.
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 |
| 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 |
| Tetbury | 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 |