Last updated: July 2, 2025
Understanding the UV Index in Castletownbere, Ireland, is crucial for everyone who enjoys the great outdoors. With significant peaks in UV levels, particularly around midday, being aware of the UV Index can help you prevent sunburn and protect your skin health. This charming coastal town, nestled in a Cfb climate zone, experiences varied weather, but the sun can be deceptively strong, especially during the summer months. By staying informed about UV exposure risks, you can take proactive measures to shield yourself and your loved ones from harmful rays, ensuring that every day spent in the beautiful surroundings of Castletownbere is not just enjoyable, but safe too.
The UV Index for the day presents an interesting pattern as it steadily climbs from early morning to reach its peak at 1 PM, hitting a notable 8. Starting at a muted 1 at 7 AM and 8 AM, the intensity ramps up to 2 by 9 AM. 10 AM marks the first significant increase to 4, and by 11 AM, it rises to 6. The sun’s rays are at their most intense from 12 PM to 2 PM, where the index remains at 7 and 8, respectively. As the afternoon progresses, the UV Index begins to taper off, dropping to 6 at 4 PM, and settling down to 2 by 7 PM. This data underscores the importance of sun protection during the midday hours when UV radiation poses the greatest risk.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
The UV Index demonstrates a notable seasonal fluctuation, with the highest levels occurring during the summer months. From March to August, the UV Index peaks, reaching 8 in June and July, categorizing these months as very high risk for UV exposure and reducing burn time to just 15 minutes. Conversely, the winter months of January, February, November, and December feature lower UV Index values, classified as low risk, with burn times extending to 45 minutes. Visitors and residents should prioritize sun protection, especially from April to August, when UV exposure is at its highest. It is advisable to wear sunscreen, protective clothing, and seek shade during peak sun hours for health and safety.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gaillimh UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Tallaght UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Dublin UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Luimneach UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Cork UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| Castletownbere | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |