Liberec , jihozápadní pohled z věže radnice na město, v pozadí Ještěd

Czechia · 10 kWp reference system

Liberec solar forecast

Photo: Daniel Baránek, CC BY-SA 3.0. Cropped, resized and converted to WebP by GridPassport.

Wednesday, August 5, 2026

About 42.4 kWh tomorrow

For a standard 10 kWp south-facing system in Liberec, GridPassport estimates 42.4 kWh on Wednesday, August 5, 2026, with a likely range of 31.2-50.7 kWh. The strongest production window is expected at 14:00-18:00 local time.

Updated Aug 4, 2026, 08:53 PM GMT+2 · fresh snapshot
Likely range
31.2-50.7 kWh
Strongest window
14:00-18:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Liberec

A standard 10 kWp system produces about 9,974 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.

Values are kWh per month. Source: European Commission JRC PVGIS.

What makes Liberec's solar profile different? The typical annual yield is about 997 kWh per installed kWp, ranking Liberec #6 of 6 modelled locations in Czechia. That is 8% below the median of the 6 Czechia locations in this dataset. July is typically the strongest month and December the weakest; the stronger month produces about 5.0 times as much.

See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuary Monthly output311 kWh Daily average10.1 kWh/day Year-to-year variation±97 kWh
MonthFebruary Monthly output522 kWh Daily average18.6 kWh/day Year-to-year variation±144 kWh
MonthMarch Monthly output870 kWh Daily average28.1 kWh/day Year-to-year variation±197 kWh
MonthApril Monthly output1,135 kWh Daily average37.8 kWh/day Year-to-year variation±210 kWh
MonthMay Monthly output1,240 kWh Daily average40.0 kWh/day Year-to-year variation±193 kWh
MonthJune Monthly output1,244 kWh Daily average41.5 kWh/day Year-to-year variation±139 kWh
MonthJuly Monthly output1,260 kWh Daily average40.7 kWh/day Year-to-year variation±144 kWh
MonthAugust Monthly output1,167 kWh Daily average37.6 kWh/day Year-to-year variation±139 kWh
MonthSeptember Monthly output979 kWh Daily average32.6 kWh/day Year-to-year variation±155 kWh
MonthOctober Monthly output691 kWh Daily average22.3 kWh/day Year-to-year variation±166 kWh
MonthNovember Monthly output305 kWh Daily average10.2 kWh/day Year-to-year variation±91 kWh
MonthDecember Monthly output250 kWh Daily average8.1 kWh/day Year-to-year variation±56 kWh

Nearby solar forecasts

Compare Liberec with nearby cities

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Method and data

Every city uses a 10 kWp system facing south at 35 degrees with 14% system losses. Tomorrow's figure combines hourly weather with GridPassport's PV production and uncertainty model. The monthly profile uses the European Commission JRC PVGIS multi-year climate series. Roof direction, shade, snow, dirt, inverter clipping and local weather can change real output.