{"name":"Karlsruhe","state":"Baden-Württemberg","district":"Stadtkreis Karlsruhe","lat":49.0094,"lon":8.4044,"population":283799,"elevation_m":118,"url":"https://solaratlas24.de/ort/karlsruhe.html","pv_kwh_per_kwp":{"opt":1138,"s35":1136,"ew":898,"e35":902,"w35":893,"s15":1069,"s90":797},"pv_monthly_kwh_per_kwp_optimal":[43.0,63.2,101.3,125.6,129.8,132.7,134.8,127.5,112.0,81.3,49.0,37.2],"optimal_tilt_deg":38,"optimal_azimuth_deg":-1,"climate_1991_2020":{"frost":60,"hot":20,"ice":8,"prec":750,"rad":1161,"summer":68,"sun":1795,"temp":11.3},"climate_1961_1990":{"frost":68,"hot":11,"ice":13,"prec":787,"summer":51,"sun":1639,"temp":10.2},"monthly_normals_1991_2020":{"prec":[56,53,55,45,77,68,79,63,55,66,63,72],"rad":[26,44,85,130,162,175,175,152,104,61,29,19],"sun":[54,82,140,194,218,236,253,236,175,108,57,41],"temp":[2.5,3.4,7.1,11.2,15.3,18.8,20.7,20.3,15.7,11.0,6.3,3.3]},"annual_series":{"frost":{"start":1951,"values":[68,85,87,72,108,93,74,80,83,56,59,89,99,81,71,56,67,82,84,85,75,75,88,34,58,71,43,63,55,69,77,60,66,61,90,70,76,46,56,46,68,50,60,31,56,88,59,62,50,35,60,43,80,70,74,70,39,65,74,90,59,59,78,37,61,59,63,53,58,55,64,53,46,36,65]},"hot":{"start":1951,"values":[7,20,13,8,4,4,10,5,18,3,11,10,9,23,4,5,14,6,12,7,17,9,14,6,13,23,4,4,8,5,7,13,28,9,9,15,8,11,14,18,25,23,14,23,21,10,18,19,19,15,23,13,46,20,27,26,16,10,14,16,11,16,18,10,31,16,22,34,29,21,8,37,27,19,25]},"ice":{"start":1951,"values":[2,12,10,21,11,31,7,7,8,9,11,17,48,21,9,11,11,18,32,18,16,12,9,0,1,14,5,14,15,14,13,15,10,1,30,23,24,0,1,2,13,6,9,0,7,18,15,11,7,1,4,10,9,8,13,12,5,0,14,33,4,16,11,0,0,4,8,4,0,0,4,3,0,3,0]},"prec":{"start":1951,"values":[816,910,565,792,797,784,834,945,482,774,805,626,628,558,1127,843,767,1049,821,931,515,714,729,816,816,676,730,1003,790,784,956,855,771,791,717,885,838,906,655,715,524,809,800,819,971,730,784,710,913,843,936,994,577,681,636,826,784,757,818,797,597,713,847,681,522,717,722,567,686,572,738,683,758,883,685]},"rad":{"start":1991,"values":[1164,1110,1099,1092,1070,1128,1179,1086,1162,1145,1141,1119,1324,1144,1179,1168,1163,1130,1187,1129,1236,1191,1087,1185,1183,1150,1185,1243,1185,1269,1162,1313,1226,1135,1250]},"summer":{"start":1951,"values":[49,62,51,37,48,28,39,46,71,32,48,49,50,67,31,41,55,36,52,51,60,31,57,37,53,69,39,34,51,33,44,68,74,40,54,57,49,55,75,61,71,72,60,62,61,53,68,56,65,62,67,60,105,64,71,80,72,54,60,50,71,65,59,57,66,69,71,104,75,83,56,94,93,72,72]},"sun":{"start":1951,"values":[1844,1785,1949,1672,1656,1580,1772,1666,2006,1528,1660,1811,1598,1714,1418,1573,1814,1542,1585,1467,1767,1496,1710,1461,1628,1845,1447,1560,1631,1524,1553,1752,1700,1560,1808,1615,1570,1606,1846,1909,1863,1688,1652,1694,1657,1706,1846,1543,1660,1723,1753,1696,2275,1798,1894,1882,1905,1705,1769,1603,1985,1837,1564,1764,1838,1657,1833,2092,1957,2021,1748,2163,1853,1607,1990]},"temp":{"start":1881,"values":[9.6,10.1,9.9,10.6,9.8,10.2,8.7,8.9,9.2,9.3,9.3,9.8,10.2,10.2,9.2,9.4,10.1,10.5,10.2,10.5,9.5,9.6,10.2,10.3,10.0,10.2,10.0,9.2,9.4,10.2,10.9,10.0,10.4,10.0,10.2,10.5,9.4,10.3,9.5,10.4,10.9,9.4,10.2,9.4,10.1,10.7,10.3,10.8,9.7,10.8,9.4,10.0,9.6,11.1,10.5,10.5,10.6,10.2,10.0,8.5,9.0,9.3,10.4,9.7,10.5,9.9,10.4,10.3,10.7,10.2,10.3,10.1,10.3,9.6,9.4,8.6,10.2,10.1,10.8,10.4,10.9,9.3,9.0,10.3,9.4,10.5,10.6,9.8,9.6,9.8,10.2,9.4,9.9,10.7,10.5,10.7,10.6,9.6,10.1,9.7,10.1,10.6,10.9,9.9,9.4,10.0,9.7,11.1,11.2,11.4,10.6,11.3,10.8,12.0,11.1,9.6,10.9,11.2,11.5,12.0,11.2,11.6,11.7,11.1,11.1,11.5,11.8,11.4,10.9,9.9,11.6,11.0,10.5,12.2,11.8,11.2,11.4,12.4,11.8,12.3,10.8,12.6,12.7,12.4,11.8]}},"recent_months":[{"month":"2025-11","pv_kwh_per_kwp_est":53.4,"radiation_kwh_m2":31.6,"sunshine_h":68.0,"temp_c":6.0,"precip_mm":42.0},{"month":"2025-12","pv_kwh_per_kwp_est":49.9,"radiation_kwh_m2":25.5,"sunshine_h":78.0,"temp_c":3.8,"precip_mm":13.0},{"month":"2026-01","pv_kwh_per_kwp_est":43.2,"radiation_kwh_m2":26.1,"sunshine_h":50.0,"temp_c":1.6,"precip_mm":39.0},{"month":"2026-02","pv_kwh_per_kwp_est":53.3,"radiation_kwh_m2":37.1,"sunshine_h":45.0,"temp_c":6.2,"precip_mm":87.0},{"month":"2026-03","pv_kwh_per_kwp_est":121.1,"radiation_kwh_m2":101.6,"sunshine_h":184.0,"temp_c":7.9,"precip_mm":35.0},{"month":"2026-04","pv_kwh_per_kwp_est":148.6,"radiation_kwh_m2":153.8,"sunshine_h":251.0,"temp_c":11.9,"precip_mm":16.0},{"month":"2026-05","pv_kwh_per_kwp_est":145.2,"radiation_kwh_m2":181.2,"sunshine_h":263.0,"temp_c":16.4,"precip_mm":75.0},{"month":"2026-06","pv_kwh_per_kwp_est":147.0,"radiation_kwh_m2":193.9,"sunshine_h":278.0,"temp_c":22.4,"precip_mm":41.0},{"month":"2026-07","pv_kwh_per_kwp_est":162.8,"radiation_kwh_m2":211.4,"sunshine_h":334.0,"temp_c":23.1,"precip_mm":34.0},{"month":"2026-08","pv_kwh_per_kwp_est":135.6,"radiation_kwh_m2":161.7,"sunshine_h":262.0,"temp_c":23.0,"precip_mm":38.0},{"month":"2026-09","pv_kwh_per_kwp_est":139.5,"radiation_kwh_m2":129.5,"sunshine_h":227.0,"temp_c":18.3,"precip_mm":6.0},{"month":"2026-10","pv_kwh_per_kwp_est":91.6,"radiation_kwh_m2":68.7,"sunshine_h":130.0,"temp_c":12.2,"precip_mm":58.0}],"sources":["PVGIS 5.3 © European Union (JRC)","Deutscher Wetterdienst, Climate Data Center (CC BY 4.0)"],"license":"CC BY 4.0","attribution":"SolarAtlas24: Photovoltaik und Klima in Karlsruhe. Datenbasis PVGIS (EU JRC) und DWD. https://solaratlas24.de/ort/karlsruhe.html (Stand 2026-11)"}