Last updated: May 3, 2025
In Nemuro, Japan, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding UV levels can significantly reduce the risk of sunburn and long-term skin damage, especially during the peak hours of sunlight. With a Dfb climate that offers variable sun exposure, Nemuro sees UV Index values soar as high as 9 around midday, making it vital to take proactive measures to safeguard against harmful rays. By keeping an eye on the UV Index, residents and visitors can enjoy the beautiful outdoor environment while minimizing the risks associated with excessive UV exposure.
The UV Index reflects the sun's intensity throughout the day, peaking at 11:00 AM with a maximum value of 9, indicating a high risk of harm from unprotected sun exposure. Starting from a gentle 3 at 07:00, the index rises steadily, reaching 8 by 10:00 AM and peaking at 9 just before noon. As the afternoon unfolds, the intensity begins to decline, dipping to 5 by 14:00, and further decreasing to a low of 1 by 17:00. The day wraps up with a 0 at 19:00, suggesting that the sun's rays pose little threat after sunset. Stay sun-safe by applying sunscreen during peak hours and seeking shade as needed!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 3 | moderate | 30 min |
| 08:00 | 5 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index exhibits noticeable seasonal variations, ranging from a low of 2 in January to a peak of 10 in July. The highest-risk months for UV exposure are from April to September, with values consistently classified as high to very high during this period, indicating a burn time of just 15 minutes for unprotected skin. Visitors and residents are advised to take precautionary measures during these months, such as wearing protective clothing, applying sunscreen frequently, and seeking shade, especially during midday hours. As the UV Index decreases sharply in the fall and winter months, the danger of overexposure diminishes significantly, prompting less urgent protective measures from October to February.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nemuro | 2 | 3 | 5 | 7 | 9 | 9 | 10 | 9 | 8 | 5 | 3 | 2 |
| Sapporo UVI | 2 | 3 | 6 | 7 | 9 | 9 | 9 | 10 | 8 | 5 | 3 | 2 |
| Yokohama UVI | 3 | 5 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 4 |
| Tokyo UVI | 3 | 5 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 4 |
| Nagoya UVI | 4 | 6 | 8 | 10 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 3 |
| Osaka UVI | 4 | 6 | 8 | 11 | 11 | 11 | 12 | 11 | 10 | 7 | 5 | 3 |