Japan · urban-centre population 85,091
Iwakuni
Weather values are area-weighted across the 40 km² urban centre (2 ERA5 cells).
22.8
matching days / year for “Crisp and clear” · 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 9°C, p10 5°C, p90 13°C
- February: average 10°C, p10 5°C, p90 14°C
- March: average 14°C, p10 9°C, p90 19°C
- April: average 19°C, p10 15°C, p90 22°C
- May: average 22°C, p10 19°C, p90 25°C
- June: average 26°C, p10 22°C, p90 29°C
- July: average 30°C, p10 27°C, p90 33°C
- August: average 31°C, p10 27°C, p90 34°C
- September: average 29°C, p10 26°C, p90 32°C
- October: average 23°C, p10 18°C, p90 27°C
- November: average 17°C, p10 13°C, p90 21°C
- December: average 11°C, p10 6°C, p90 15°C
Matching days by month · Crisp and clear
- January: 4.0 matching days per year
- February: 3.8 matching days per year
- March: 4.3 matching days per year
- April: 2.1 matching days per year
- May: 0.0 matching days per year
- June: 0.0 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: 0.6 matching days per year
- November: 4.0 matching days per year
- December: 4.0 matching days per year
Presets
- Eternal spring: 30.6 days/yr
- Mild and dry: 47.5 days/yr
- Beach weather: 19.6 days/yr
- Crisp and clear: 22.8 days/yr
- Warm, not sweaty: 48.1 days/yr