Grunwaldzki Bridge , Wrocław, built 1907.

Poland · 10 kWp reference system

Wrocław solar forecast

Photo: Jar.ciurus, CC BY-SA 3.0 pl. Cropped, resized and converted to WebP by GridPassport.

Wednesday, August 5, 2026

About 50.5 kWh tomorrow

For a standard 10 kWp south-facing system in Wrocław, GridPassport estimates 50.5 kWh on Wednesday, August 5, 2026, with a likely range of 39.7-55.2 kWh. The strongest production window is expected at 10:00-14:00 local time.

Updated Aug 4, 2026, 08:53 PM GMT+2 · fresh snapshot
Likely range
39.7-55.2 kWh
Strongest window
10:00-14:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Wrocław

A standard 10 kWp system produces about 10,899 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 Wrocław's solar profile different? The typical annual yield is about 1,090 kWh per installed kWp, ranking Wrocław #1 of 10 modelled locations in Poland. That is 3% above the median of the 10 Poland locations in this dataset. July is typically the strongest month and December the weakest; the stronger month produces about 3.8 times as much.

See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuary Monthly output383 kWh Daily average12.3 kWh/day Year-to-year variation±94 kWh
MonthFebruary Monthly output579 kWh Daily average20.7 kWh/day Year-to-year variation±156 kWh
MonthMarch Monthly output936 kWh Daily average30.2 kWh/day Year-to-year variation±179 kWh
MonthApril Monthly output1,211 kWh Daily average40.4 kWh/day Year-to-year variation±198 kWh
MonthMay Monthly output1,301 kWh Daily average42.0 kWh/day Year-to-year variation±184 kWh
MonthJune Monthly output1,300 kWh Daily average43.3 kWh/day Year-to-year variation±147 kWh
MonthJuly Monthly output1,328 kWh Daily average42.8 kWh/day Year-to-year variation±115 kWh
MonthAugust Monthly output1,243 kWh Daily average40.1 kWh/day Year-to-year variation±126 kWh
MonthSeptember Monthly output1,058 kWh Daily average35.3 kWh/day Year-to-year variation±154 kWh
MonthOctober Monthly output758 kWh Daily average24.5 kWh/day Year-to-year variation±155 kWh
MonthNovember Monthly output450 kWh Daily average15.0 kWh/day Year-to-year variation±91 kWh
MonthDecember Monthly output352 kWh Daily average11.3 kWh/day Year-to-year variation±87 kWh

Nearby solar forecasts

Compare Wrocław 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.