Last updated: June 2, 2025
Understanding the UV Index in Longyearbyen, Svalbard and Jan Mayen, is crucial for promoting skin health and preventing sunburn, even in locations noted for their Arctic climate. With UV levels typically peaking at 3 during the midday hours, awareness of these measurements allows residents and visitors alike to take necessary precautions against harmful ultraviolet radiation. Given Longyearbyen's unique climate—characterized by its polar tundra (ET zone)—it’s important to recognize that the sun can still pose risks during the brighter months. Staying informed about the UV Index helps ensure safe outdoor activities while enjoying this stunning landscape.
The UV Index today starts off gently, peaking at a moderate 2 between 07:00 and 09:00. As the sun climbs higher, the index increases to 3 from 10:00 until 16:00, where it remains stable, indicating a moderate risk of harm from unprotected sun exposure. As the day winds down, the UV Index returns to 2 between 17:00 and 19:00. Keep in mind: even with lower UV readings, it’s wise to take precautions during peak hours for skin safety!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 3 | moderate | 30 min |
| 12:00 | 3 | moderate | 30 min |
| 13:00 | 3 | moderate | 30 min |
| 14:00 | 3 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV Index levels exhibit notable seasonal fluctuations, with high-risk months primarily occurring from May to July, when the UV Index reaches 3, categorizing exposure as moderate and reducing safe burn time to 30 minutes. In contrast, the first part of the year, from January to April, features low UV levels, peaking at a 2 in April, while August to October sees a decline back to low levels again. Visitors and residents should exercise caution during the summer months, ensuring to apply sunscreen and seek shade to protect against potential overexposure, while remaining aware that from November to March, UV exposure is minimal, allowing for longer burn times without significant risk.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Longyearbyen | 0 | 1 | 1 | 2 | 3 | 3 | 3 | 2 | 1 | 1 | 0 | 0 |
| Olonkinbyen UVI | 1 | 1 | 1 | 3 | 4 | 4 | 4 | 3 | 2 | 1 | 1 | 0 |