View of the city from the Museum aan de Stroom rooftop. Antwerp, Belgium

Belgium · 10 kWp reference system

Antwerp solar forecast

Photo: LBM1948, CC BY-SA 4.0. Cropped, resized and converted to WebP by GridPassport.

Wednesday, August 5, 2026

About 29.2 kWh tomorrow

For a standard 10 kWp south-facing system in Antwerp, GridPassport estimates 29.2 kWh on Wednesday, August 5, 2026, with a likely range of 19.3-37.9 kWh. The strongest production window is expected at 15:00-19:00 local time.

Updated Aug 4, 2026, 08:53 PM GMT+2 · fresh snapshot
Likely range
19.3-37.9 kWh
Strongest window
15:00-19:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Antwerp

A standard 10 kWp system produces about 10,360 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 Antwerp's solar profile different? The typical annual yield is about 1,036 kWh per installed kWp, ranking Antwerp #7 of 8 modelled locations in Belgium. That is 1% below the median of the 8 Belgium locations in this dataset. May is typically the strongest month and December the weakest; the stronger month produces about 4.2 times as much.

See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuary Monthly output370 kWh Daily average11.9 kWh/day Year-to-year variation±63 kWh
MonthFebruary Monthly output535 kWh Daily average19.1 kWh/day Year-to-year variation±147 kWh
MonthMarch Monthly output914 kWh Daily average29.5 kWh/day Year-to-year variation±173 kWh
MonthApril Monthly output1,199 kWh Daily average40.0 kWh/day Year-to-year variation±174 kWh
MonthMay Monthly output1,276 kWh Daily average41.2 kWh/day Year-to-year variation±158 kWh
MonthJune Monthly output1,251 kWh Daily average41.7 kWh/day Year-to-year variation±150 kWh
MonthJuly Monthly output1,238 kWh Daily average39.9 kWh/day Year-to-year variation±153 kWh
MonthAugust Monthly output1,138 kWh Daily average36.7 kWh/day Year-to-year variation±129 kWh
MonthSeptember Monthly output995 kWh Daily average33.1 kWh/day Year-to-year variation±71 kWh
MonthOctober Monthly output707 kWh Daily average22.8 kWh/day Year-to-year variation±98 kWh
MonthNovember Monthly output433 kWh Daily average14.4 kWh/day Year-to-year variation±78 kWh
MonthDecember Monthly output304 kWh Daily average9.8 kWh/day Year-to-year variation±84 kWh

Nearby solar forecasts

Compare Antwerp 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.