Last updated: July 2, 2025
In Sangiyn Dalay, Mongolia, understanding the UV Index is crucial for safeguarding your skin health and preventing sunburn. With its unique ET climate, this region experiences significant UV exposure, particularly during the midday hours when the index peaks at 11 around noon—representing a very high risk for harmful effects. As outdoor activities become more common, being aware of the UV levels can help you take necessary precautions to enjoy the sun safely while protecting your skin from potential damage. Stay informed, stay protected, and make the most of the beautiful sunny days in Sangiyn Dalay!
As the sun rises, the UV Index begins its ascent, starting at a modest 2 at 07:00. By 08:00, it climbs to 3, but it's not until 09:00 that we see a noticeable surge to 5. The day peaks at 11:00 with an impressive 10, reaching the highest value of 11 between 12:00 and 13:00—perfect time for that midday umbrella! As we head into the afternoon, the index gradually declines, sliding to 10 by 14:00 and then dropping to 7 at 15:00. The evening brings a gentle fade, with the UV Index winding down to 3 by 17:00 and a cooling 1 as the sun sets by 18:00 and 19:00. Remember, during those peak hours, staying sun-safe is key!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so too does the UV Index, which impacts sun exposure and burn risk. January and December are the safest months, with a low UV Index of 2, allowing for up to 45 minutes of sun without significant risk. In February, the risk increases to moderate (UV Index 4) with a burn time of 30 minutes. March sees a jump to high (UV Index 7) and a burn time of just 25 minutes. The high-risk months are from April to July, where the UV Index reaches an extreme level of 11, demanding minimal sun exposure of only 10 minutes. August and September remain very high (UV Index 10 and 8, respectively), with burn times of 15 minutes. As the weather cools down in October through November, the UV Index drops to moderate, allowing for longer burn times again. It's essential for visitors and residents to protect themselves, especially during the high-risk months, through sunscreen application, protective clothing, and seeking shade during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Darhan UVI | 1 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Erdenet UVI | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Ulan Bator UVI | 2 | 3 | 5 | 7 | 9 | 9 | 9 | 9 | 6 | 4 | 3 | 1 |
| OElgii UVI | 2 | 3 | 5 | 7 | 10 | 9 | 9 | 9 | 7 | 5 | 2 | 1 |
| Khovd UVI | 2 | 3 | 6 | 7 | 10 | 10 | 9 | 9 | 7 | 5 | 2 | 1 |
| Sangiyn Dalay | 2 | 4 | 7 | 11 | 11 | 11 | 11 | 10 | 8 | 5 | 3 | 2 |