United States · urban-centre population 1,915,114
San Diego
Weather values are area-weighted across the 688 km² urban centre (6 ERA5 cells).
120.6
matching days / year for “Eternal spring” · 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 17°C, p10 14°C, p90 21°C
- February: average 17°C, p10 13°C, p90 22°C
- March: average 17°C, p10 14°C, p90 20°C
- April: average 19°C, p10 15°C, p90 22°C
- May: average 19°C, p10 17°C, p90 22°C
- June: average 22°C, p10 19°C, p90 26°C
- July: average 24°C, p10 22°C, p90 27°C
- August: average 26°C, p10 23°C, p90 28°C
- September: average 25°C, p10 22°C, p90 29°C
- October: average 23°C, p10 19°C, p90 27°C
- November: average 21°C, p10 17°C, p90 24°C
- December: average 18°C, p10 15°C, p90 22°C
Matching days by month · Eternal spring
- January: 6.8 matching days per year
- February: 7.4 matching days per year
- March: 6.2 matching days per year
- April: 10.2 matching days per year
- May: 7.3 matching days per year
- June: 12.2 matching days per year
- July: 11.6 matching days per year
- August: 9.3 matching days per year
- September: 9.5 matching days per year
- October: 15.2 matching days per year
- November: 14.7 matching days per year
- December: 10.2 matching days per year
Presets
- Eternal spring: 120.6 days/yr
- Mild and dry: 147.9 days/yr
- Beach weather: 95.7 days/yr
- Crisp and clear: 19.3 days/yr
- Warm, not sweaty: 170.0 days/yr