Bulgaria · urban-centre population 51,592
Sliven
Weather values are area-weighted across the 17 km² urban centre (1 ERA5 cells).
52.4
matching days / year for “Mild and dry” · 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 6°C, p10 -1°C, p90 12°C
- February: average 7°C, p10 -1°C, p90 15°C
- March: average 10°C, p10 3°C, p90 18°C
- April: average 15°C, p10 9°C, p90 21°C
- May: average 20°C, p10 15°C, p90 24°C
- June: average 26°C, p10 21°C, p90 30°C
- July: average 30°C, p10 25°C, p90 34°C
- August: average 29°C, p10 25°C, p90 33°C
- September: average 24°C, p10 18°C, p90 28°C
- October: average 18°C, p10 12°C, p90 23°C
- November: average 12°C, p10 7°C, p90 18°C
- December: average 7°C, p10 2°C, p90 11°C
Matching days by month · Mild and dry
- January: 1.0 matching days per year
- February: 2.0 matching days per year
- March: 3.4 matching days per year
- April: 6.4 matching days per year
- May: 6.6 matching days per year
- June: 3.2 matching days per year
- July: 2.4 matching days per year
- August: 1.8 matching days per year
- September: 7.8 matching days per year
- October: 13.0 matching days per year
- November: 3.6 matching days per year
- December: 1.2 matching days per year
Presets
- Eternal spring: 33.4 days/yr
- Mild and dry: 52.4 days/yr
- Beach weather: 50.4 days/yr
- Crisp and clear: 26.4 days/yr
- Warm, not sweaty: 57.2 days/yr