Last updated: June 2, 2025
In Tome, Japan, understanding the UV Index is crucial for safeguarding your skin and overall health. With UV levels peaking at an intense 11 from late morning to noon, awareness of these readings is vital to prevent sunburn and reduce long-term skin damage. Tome's Cfa climate brings warm summers and moderate UV exposure, making it essential for residents and visitors alike to monitor daily UV levels to enjoy the sun responsibly. Stay informed and protect yourself by taking necessary precautions during those peak hours!
As the sun rises, the UV Index begins to climb, starting at a moderate 3 by 7:00 AM. By 8:00 AM, it's already reached 5, signaling the onset of a more intense UV exposure. The peak arrives around noon, where it skyrockets to an intense 11, highlighting the importance of sun protection during these hours. After this zenith, the index gradually declines, dipping to 9 by 1:00 PM and returning to a more manageable 5 by 3:00 PM. As the afternoon progresses, the UV intensity fades significantly, settling at 3 by 4:00 PM and dwindling further to 1 by 5:00 PM. Lastly, by the time dusk arrives at 7:00 PM, the UV Index drops to 0, wrapping up the day’s sun exposure. Stay vigilant and protect your skin during those peak hours!
| 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 | 9 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV exposure fluctuates significantly, with the highest risk months occurring from April to August. During this period, the UV Index reaches very high to extreme levels, peaking at 11 in July, where burn time is as little as 10 minutes. In contrast, from January to February and November to December, the UV Index remains at a moderate level (3-4), allowing for 30-minute burn times. To protect against harmful UV radiation, it is crucial for both visitors and residents to take precautions, especially during high-risk months—apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak sun hours.
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 |
| Tome | 3 | 4 | 6 | 8 | 9 | 10 | 11 | 10 | 9 | 6 | 4 | 3 |
| 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 |