Japan · population 25,217
Ijūin
45.8
matching days / year for “Warm, not sweaty” · 2021-2025 recent-weather sample (not a 30-year normal)
Monthly high (p10–p90)
Whiskers span the 10th–90th percentile daily high; the tick marks the monthly average.
- January: average 13°C, p10 9°C, p90 17°C
- February: average 14°C, p10 9°C, p90 19°C
- March: average 18°C, p10 13°C, p90 23°C
- April: average 22°C, p10 18°C, p90 25°C
- May: average 24°C, p10 22°C, p90 27°C
- June: average 27°C, p10 23°C, p90 31°C
- July: average 31°C, p10 29°C, p90 33°C
- August: average 32°C, p10 28°C, p90 34°C
- September: average 31°C, p10 28°C, p90 33°C
- October: average 26°C, p10 22°C, p90 30°C
- November: average 20°C, p10 16°C, p90 25°C
- December: average 14°C, p10 10°C, p90 19°C
Matching days by month · Warm, not sweaty
- January: 1.2 matching days per year
- February: 1.8 matching days per year
- March: 6.4 matching days per year
- April: 7.8 matching days per year
- May: 4.6 matching days per year
- June: 0.2 matching days per year
- July: 0.0 matching days per year
- August: 0.0 matching days per year
- September: 0.0 matching days per year
- October: 7.0 matching days per year
- November: 11.6 matching days per year
- December: 5.2 matching days per year
Presets
- Eternal spring: 29.6 days/yr
- Mild and dry: 46.4 days/yr
- Beach weather: 22.8 days/yr
- Crisp and clear: 17.4 days/yr
- Warm, not sweaty: 45.8 days/yr