{"location":{"city":"Breń","voivodeship":"Zachodniopomorskie","community":"Bierzwnik","postalCode":"73-240","latitude":53.0507,"longitude":15.7474,"elevation":70},"climateZone":1,"standardOutsideTemp":-16,"annualMeanTemp":9.3,"monthly":[{"month":1,"outsideTemp":-0.13,"heatingDays":31,"degreeDayNum":562,"solarIrradianceKwhM2":20.5,"windSpeedAvg":5.48,"relativeHumidity":85.6,"outsideTempOnHeatingDays":-0.13},{"month":2,"outsideTemp":0.7,"heatingDays":28,"degreeDayNum":489,"solarIrradianceKwhM2":38.8,"windSpeedAvg":5.45,"relativeHumidity":82.3,"outsideTempOnHeatingDays":0.7},{"month":3,"outsideTemp":3.63,"heatingDays":31,"degreeDayNum":445,"solarIrradianceKwhM2":79.9,"windSpeedAvg":5.37,"relativeHumidity":77.9,"outsideTempOnHeatingDays":3.63},{"month":4,"outsideTemp":8.84,"heatingDays":29,"degreeDayNum":275,"solarIrradianceKwhM2":127.9,"windSpeedAvg":5.02,"relativeHumidity":71.2,"outsideTempOnHeatingDays":8.65},{"month":5,"outsideTemp":13.67,"heatingDays":27,"degreeDayNum":142,"solarIrradianceKwhM2":158.6,"windSpeedAvg":4.87,"relativeHumidity":69.5,"outsideTempOnHeatingDays":12.75},{"month":6,"outsideTemp":16.96,"heatingDays":19,"degreeDayNum":58,"solarIrradianceKwhM2":160.2,"windSpeedAvg":4.84,"relativeHumidity":69.9,"outsideTempOnHeatingDays":15},{"month":7,"outsideTemp":19.02,"heatingDays":12,"degreeDayNum":24,"solarIrradianceKwhM2":158.9,"windSpeedAvg":4.7,"relativeHumidity":71,"outsideTempOnHeatingDays":16.06},{"month":8,"outsideTemp":18.81,"heatingDays":12,"degreeDayNum":25,"solarIrradianceKwhM2":134.7,"windSpeedAvg":4.54,"relativeHumidity":71.6,"outsideTempOnHeatingDays":15.98},{"month":9,"outsideTemp":14.46,"heatingDays":26,"degreeDayNum":111,"solarIrradianceKwhM2":88.1,"windSpeedAvg":4.8,"relativeHumidity":76.9,"outsideTempOnHeatingDays":13.72},{"month":10,"outsideTemp":9.52,"heatingDays":31,"degreeDayNum":262,"solarIrradianceKwhM2":51,"windSpeedAvg":5.04,"relativeHumidity":82.3,"outsideTempOnHeatingDays":9.52},{"month":11,"outsideTemp":4.59,"heatingDays":30,"degreeDayNum":402,"solarIrradianceKwhM2":23.3,"windSpeedAvg":5.04,"relativeHumidity":87.8,"outsideTempOnHeatingDays":4.59},{"month":12,"outsideTemp":1.19,"heatingDays":31,"degreeDayNum":521,"solarIrradianceKwhM2":15.3,"windSpeedAvg":5.33,"relativeHumidity":87.5,"outsideTempOnHeatingDays":1.19}],"groundTemp1m":9.51,"groundTemp2m":9.51,"solarIrradianceKwhM2Year":1057.1,"windSpeedAvg":5.04,"relativeHumidityAvg":77.8,"suitability":{"score":74,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.0 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:09:24.470Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}