Last updated: July 2, 2025
In Kitsuki, Japan, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels not only helps in preventing sunburn but also plays a significant role in long-term skin health. With Kitsuki's humid subtropical climate, residents and visitors often face heightened exposure risks, especially during midday when the UV Index peaks at a striking 12. By staying informed about daily UV fluctuations, you can take proactive measures to enjoy the sun safely while protecting your skin from harmful rays.
As the sun rises, the UV Index begins its ascent, starting at a low 2 at 7:00 AM. By 9:00 AM, it ramps up to a moderate 6, signaling that sun protection is becoming essential. The peak of the day arrives at 12:00 PM when the index skyrockets to a striking 12, suggesting that precautions against UV exposure are crucial. The intensity then gradually decreases, tapering off to 10 by 2:00 PM and falling further to a mild 4 by 4:00 PM. As evening approaches, the UV Index drops to 1 by 6:00 PM, indicating a safer time to enjoy the outdoors without the same level of concern. Keep this UV journey in mind for a safe and sun-smart day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV radiation levels dramatically fluctuate, impacting the risk of skin damage for both visitors and residents. The highest risk months occur from May to August, where the UV Index peaks at 11 to 12, indicating an extreme exposure category with a burn time of just 10 minutes. During these months, it is crucial to limit direct sun exposure and utilize protective measures such as sunscreen, hats, and clothing to safeguard skin health. March and April also present high levels of concern, categorized as very high with burn times of just 15 minutes. As seasons shift into fall and winter, the UV Index decreases, with December and January showing a moderate level, allowing for longer safe exposure times of 30 minutes. However, even during lower UV months, protective precautions are still advised. Stay informed and protect yourself year-round!
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Kitsuki | 4 | 6 | 8 | 10 | 11 | 11 | 12 | 12 | 10 | 7 | 6 | 4 |