Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Castlemartin, United Kingdom, particularly in protecting your skin from harmful UV rays. Awareness of the UV levels helps prevent sunburn and supports long-term skin health, allowing you to enjoy the beautiful outdoors without the risks associated with overexposure. Castlemartin’s Cfb climate means you experience a temperate maritime climate, but this doesn’t diminish the risk of UV exposure. With peak UV Index levels reaching 8 during midday hours, it's essential to stay informed and take protective measures when venturing outside.
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, the UV Index exhibits notable seasonal fluctuations, significantly influencing exposure risks for both residents and visitors. The high-risk months for UV exposure are typically from April to August, where the index peaks at 8 during June and July, indicating very high exposure levels with a burn time of just 15 minutes. March marks the transition into the moderate category with an index of 4, while from October to February, the risk decreases to the low category, allowing for extended burn times of 45 minutes in winter months. Visitors and residents are strongly advised to take precautionary measures when UV levels are moderate or higher, particularly by seeking shade, wearing protective clothing, and applying sunscreen regularly during the higher index months to safeguard against harmful sun exposure.
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 |
| Bristol UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Castlemartin | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |