Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Mariefred, Sweden, where the climate can expose individuals to varying levels of ultraviolet radiation throughout the year. As you enjoy the charming scenery of this idyllic town, being aware of the UV levels helps prevent sunburn and supports long-term skin health. From a maximum UV Index of 7 around noon in the warmer months to lower levels in the morning and late afternoon, it's essential to be prepared. With Mariefred's Dfb climate characterized by warm summers, knowing how to protect yourself from UV risks ensures you can fully enjoy the outdoors while safeguarding your skin.
The UV Index throughout the day paints a vivid picture of sun intensity, peaking during midday hours. At 07:00, it starts at a mild level of 1, gradually rising to 2 by 08:00. As the morning progresses, it reaches 4 at 09:00, and by 10:00, it climbs to a noteworthy 5. The sun bears down most fiercely between 11:00 and 12:00, with the UV Index hitting 6 and then its highest point of 7. This peak intensity continues until 13:00, before gradually tapering off. By 14:00, the index slips back to 6, and then to 5 at 15:00. The late afternoon brings further relief as the index descends to 4 at 16:00, followed by 3 at 17:00. As evening arrives, the numbers dwindle, landing back at a gentle 1 by 19:00. Be mindful of this UV journey to stay safe in the sun!
| 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 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 4 | 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 |
| Mariefred | 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 |