Last updated: June 2, 2025
Understanding the UV Index in Omi, Japan is crucial for residents and visitors alike, as it provides essential information about the sun's harmful ultraviolet radiation levels. Keeping track of these UV levels can help prevent sunburn and protect skin health, ensuring that you enjoy the beautiful outdoors safely. Omi, with its Dfb climate, experiences varying UV exposure throughout the year, but it's particularly high in the mid-morning to early afternoon hours, peaking at 11 between 11:00 and 12:00. By being aware of the UV index, you can take proactive measures to shield yourself from sun damage and maintain your well-being while basking in Omi's scenic beauty.
The UV Index throughout the day exhibits a clear peak around midday, reflecting the sun's intensity. Starting from a mild 2 at 07:00, it swiftly rises to a moderate 5 by 08:00. By 09:00, the index escalates to a more intense 7, reaching a notable 10 at 10:00, and hitting its maximum of 11 at both 11:00 and 12:00. As the afternoon progresses, the index begins to decline, dropping to 10 at 13:00, then gradually lowering to 8 at 14:00 and 6 by 15:00. The evening sees a rapid decrease, with values falling to 3 at 16:00, then to 2 at 17:00, and finally tapering off to 1 at 18:00 and 0 by 19:00. This pattern emphasizes the importance of sun protection during the peak hours of 11:00 to 14:00 when UV exposure is highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 5 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 10 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 11 | extreme | 10 min |
13:00 | 10 | very high | 15 min |
14:00 | 8 | very high | 15 min |
15:00 | 6 | high | 25 min |
16:00 | 3 | moderate | 30 min |
17:00 | 2 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal changes, peaking during the summer months. The highest risk for UV exposure occurs from March through August, with May to August categorized as extreme with UV Index values reaching up to 12. This means that residents and visitors should be particularly vigilant during these months, as the burn time reduces to just 10 minutes under direct sunlight. From September to February, the UV Index decreases, with January and December considered moderate, allowing for longer exposure times of 30 minutes. It is essential to take precautions such as wearing sunscreen, protective clothing, and seeking shade, especially during the high-risk months to minimize the risk of skin damage.
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 |
Omi | 4 | 6 | 9 | 10 | 11 | 11 | 11 | 12 | 10 | 7 | 5 | 4 |