Last updated: July 2, 2025
Understanding the UV Index in Greenlaw, United Kingdom, is crucial for protecting your skin and maintaining overall health. Awareness of UV levels is essential, as exposure to harmful rays can lead to sunburn, premature aging, and an increased risk of skin cancer. In this temperate maritime climate characterized by mild summers and cool winters, residents and visitors must pay close attention to the UV Index, which varies throughout the day. For instance, peak levels can reach a notable 8 around midday, emphasizing the importance of sun safety measures. By staying informed about UV exposure risks and taking necessary precautions, you can enjoy the outdoors while safeguarding your skin's health.
As the sun rises, the UV Index gradually climbs, showcasing its intensity throughout the day. At 07:00, it starts at a mild 1, but by 09:00, it picks up pace, reaching 3. The peak occurs at 12:00, hitting a solid 7. From 13:00 to 14:00, the index reaches its zenith at 8, warning us to take precautions under the midday sun. As the afternoon rolls on, the UV intensity drops steadily—dipping to 6 by 15:00, then falling further to 5 by 16:00. The evening brings more relief, with readings returning to 1 by 19:00. Be mindful of the sun’s powerful reach, especially during its peak 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 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Understanding seasonal UV changes is crucial for both visitors and residents. From January to February, the UV Index remains low (1-2), allowing for longer safe exposure times of 45 minutes. However, as March approaches, the UV Index rises to 3 (moderate), reducing safe burn time to 30 minutes. The high-risk months are May through August, with the UV Index peaking at 8 during June and July (very high exposure), where burn time drops to just 15 minutes. September to October sees a decrease to moderate levels (5-3), while November and December return to low (1), extending burn time back to 45 minutes. To stay safe, during the summer months, it's essential to wear protective clothing, use sunscreen, and limit sun exposure, especially between 10 a.m. and 4 p.m.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Greenlaw | 1 | 2 | 3 | 5 | 6 | 8 | 8 | 6 | 5 | 3 | 1 | 1 |
| 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 |
| Bristol UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |