Dlugie Pobrzeze St., Gdansk, Poland Żuraw: This is a photo of an object of cultural heritage inscribed in the registry of the Pomeranian Voivodeship with number A-132 z 18.12.1959.

Poland · 10 kWp reference system

Gdańsk solar forecast

Name: Gdańsk solar production forecast and typical monthly profile
Creator: GridPassport

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

Wednesday, August 5, 2026

About 42.3 kWh tomorrow

For a standard 10 kWp south-facing system in Gdańsk, GridPassport estimates 42.3 kWh on Wednesday, August 5, 2026, with a likely range of 31.0-52.5 kWh. The strongest production window is expected at 13:00-17:00 local time.

Updated Aug 4, 2026, 08:53 PM GMT+2 · fresh snapshot

Likely range: 31.0-52.5 kWh
Strongest window: 13:00-17:00
Confidence: medium

Forecast my solar output

Typical year

Solar production month by month in Gdańsk

A standard 10 kWp system produces about 10,516 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.

280 Jan

471 Feb

907 Mar

1268 Apr

1385 May

1387 Jun

1318 Jul

1230 Aug

1038 Sep

695 Oct

308 Nov

231 Dec

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

What makes Gdańsk's solar profile different? The typical annual yield is about 1,052 kWh per installed kWp, ranking Gdańsk #7 of 10 modelled locations in Poland. That is close to the median of the 10 Poland locations in this dataset. June is typically the strongest month and December the weakest; the stronger month produces about 6.0 times as much.

See the 12-month data

MonthMonthly outputDaily averageYear-to-year variation

MonthJanuary Monthly output280 kWh Daily average9.0 kWh/day Year-to-year variation±65 kWh

MonthFebruary Monthly output471 kWh Daily average16.8 kWh/day Year-to-year variation±116 kWh

MonthMarch Monthly output907 kWh Daily average29.2 kWh/day Year-to-year variation±184 kWh

MonthApril Monthly output1,268 kWh Daily average42.3 kWh/day Year-to-year variation±175 kWh

MonthMay Monthly output1,385 kWh Daily average44.7 kWh/day Year-to-year variation±183 kWh

MonthJune Monthly output1,387 kWh Daily average46.2 kWh/day Year-to-year variation±132 kWh

MonthJuly Monthly output1,318 kWh Daily average42.5 kWh/day Year-to-year variation±149 kWh

MonthAugust Monthly output1,230 kWh Daily average39.7 kWh/day Year-to-year variation±144 kWh

MonthSeptember Monthly output1,038 kWh Daily average34.6 kWh/day Year-to-year variation±133 kWh

MonthOctober Monthly output695 kWh Daily average22.4 kWh/day Year-to-year variation±158 kWh

MonthNovember Monthly output308 kWh Daily average10.3 kWh/day Year-to-year variation±64 kWh

MonthDecember Monthly output231 kWh Daily average7.4 kWh/day Year-to-year variation±49 kWh

Nearby solar forecasts

Compare Gdańsk with nearby cities

KlaipėdaLithuania 39.4 kWh

PoznańPoland 35.5 kWh

ŁódźPoland 36.7 kWh

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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.

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