Last updated: June 2, 2025
Understanding the UV Index in Billingsfors, Sweden is crucial for protecting your skin and promoting overall health. As residents enjoy the beautiful summer days typical of a Dfb climate, it’s important to be aware of the varying UV levels throughout the day, especially when they peak at a dangerous level of 7 between noon and 2 PM. This heightened exposure increases the risk of sunburn and long-term skin damage, making it essential to check the UV Index regularly. By staying informed, you can take necessary precautions—like wearing sunscreen and protective clothing—ensuring your time outdoors remains enjoyable and safe.
As the sun rises, the UV Index (UVI) begins its ascent, starting with a mild level of 1 at 7:00 AM. By 9:00 AM, it reaches a level 3, indicating an increase in solar intensity. The real peak occurs at noon when the UVI hits a robust 7, representing the highest risk for harm from unprotected sun exposure. This high intensity persists until 3:00 PM, when it gradually recedes to a level of 6. As the afternoon wanes, the UVI dips further, dropping to 5 at 4 PM and finally back to a gentle 1 by 7 PM, allowing for a safe and comfortable evening. Remember, the hours between 10 AM and 3 PM mark the most crucial times for sun safety!
| 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 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences notable seasonal changes, peaking during the summer months. From January to February, UV levels remain low (Index 1-2), allowing for a safe burn time of 45 minutes. As spring approaches in March, the index rises to 3, indicating a moderate exposure risk with a reduced burn time of 30 minutes, which continues into April and May. By June and July, UV levels escalate to 7, categorized as high, and the burn time decreases to just 25 minutes, marking this as a high-risk period for sun exposure. The UV Index begins to decline in August (Index 5) and remains moderate until September (Index 4), before returning to low levels in October, November, and December (Index 1-2, with burn times of 45 minutes). Consequently, residents and visitors are advised to take extra precautions during the summer months, particularly from June to July, by seeking shade, wearing protective clothing, and applying sunscreen to prevent sunburn and skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sollentuna UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Uppsala UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Stockholm UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Billingsfors | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Goeteborg UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 2 | 1 | 1 |
| Malmoe UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |