Last updated: June 2, 2025
In Grgar, Slovenia, being aware of the UV Index is crucial for safeguarding your skin against the harmful effects of sun exposure. Understanding UV levels helps you prevent sunburn and maintain long-term skin health, making it essential for outdoor enthusiasts and everyday residents alike. In Grgar's temperate Cfb climate, UV exposure can fluctuate greatly throughout the day, with peak levels reaching 9 between noon and 1 PM. By staying informed about the UV Index, you can take proactive steps to enjoy the beautiful Slovenian outdoors while minimizing your risk of sun damage.
The UV Index throughout the day started off low, with 1 at 07:00, gradually rising as the sun climbed higher in the sky. By 09:00, it reached a moderate 4, but the real peak came at 12:00 with an impressive 9—a perfect reminder to apply sunscreen! As the afternoon unfolded, the UV levels remained high, hovering around 8 at 14:00 and dipping slightly to 7 by 15:00. As the sun began to set, the index gracefully descended, dropping to 3 by 17:00, and finally returning to a safe 1 by 19:00. This daily cycle underscores the importance of sun safety, particularly during those high noon hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | 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 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels show significant seasonal changes, with high-risk months occurring from April to August. During these months, the UV Index peaks at 9, indicating a very high exposure category during June and July, where the burn time is only 15 minutes. Visitors and residents should take caution, especially in May, June, July, and August, when skin protection measures are essential, such as using sunscreen, wearing protective clothing, and seeking shade. As summer transitions to fall, UV levels gradually decrease; however, moderate exposure levels in April and October warrant continued awareness. The lowest UV indexes are found in January and December, categorizing them as low risk with longer burn times of 45 minutes, offering a reprieve from sun-related hazards.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maribor UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 2 |
| Celje UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 2 |
| Grgar | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 4 | 3 | 2 |
| Velenje UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 2 |
| Kranj UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 4 | 3 | 2 |
| Ljubljana UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |