Last updated: June 2, 2025
In Stornoway, United Kingdom, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps prevent sunburn and long-term skin damage, making it essential to monitor these daily fluctuations, particularly given the local climate's influence. With a Cfb climate that includes varying exposure to sunlight throughout the year, the UV Index can reach peaks of 7 during afternoon hours, posing significant risks even on cloudy days. Stay informed and safeguard your skin by checking the UV Index before heading outdoors!
The UV Index today starts gently, peaking at 1 at 7:00 AM and gradually rising to a moderate 2 by 8:00 AM. As the sun climbs higher, the index escalates, reaching a significant 4 by 10:00 AM, and hitting its maximum of 7 between 12:00 PM and 2:00 PM. During this time, staying sun-safe is crucial! The intensity begins to wane in the afternoon, dipping back to 6 at 3:00 PM and gradually decreasing to 2 by 6:00 PM. Enjoy the sunshine, but remember to take precautions during the 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 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 2 | low | 45 min |
The UV Index exhibits significant seasonal variation, with the highest levels occurring in the summer months of June and July, where it reaches a high level of 7, resulting in a burn time of only 25 minutes. May also presents a moderate risk with an index of 5, while March and April see a gradual increase to a moderate category, peaking at 4. Conversely, the winter months of January, February, October, November, and December feature a low UV Index of 1 or 2, allowing for safer, longer exposure times of 45 minutes. For visitors and residents, it is crucial to be particularly cautious from May through August, when the risk of UV exposure is significantly higher. During these months, it is advisable to wear protective clothing and sunscreen, particularly during midday hours, to reduce the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stornoway | 1 | 1 | 3 | 4 | 5 | 7 | 7 | 6 | 4 | 2 | 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 |