How much will solar panels produce in Gdynia?

A 6 kWp system facing south at 35° tilt in Gdynia produces about 6,393 kWh a year. In a weak year that is 5,325 kWh, in a good one 7,462 kWh — 1,066 kWh per kWp.

That’s about 256% of a typical home’s yearly use (2,500 kWh).

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Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6 kWp 149 kWh, range 110–189FebFebruary: 6 kWp 313 kWh, range 242–385MarMarch: 6 kWp 501 kWh, range 365–637AprApril: 6 kWp 756 kWh, range 601–910MayMay: 6 kWp 809 kWh, range 620–998JunJune: 6 kWp 852 kWh, range 685–1,020JulJuly: 6 kWp 812 kWh, range 666–958AugAugust: 6 kWp 794 kWh, range 631–957SepSeptember: 6 kWp 602 kWh, range 467–737OctOctober: 6 kWp 375 kWh, range 279–472NovNovember: 6 kWp 153 kWh, range 119–187DecDecember: 6 kWp 129 kWh, range 87–171

kWh per month

A typical day in June

The sunniest month in Gdynia. Output peaks around 11:00 solar time, at about 3.5 kWh in the best hour.

0:006:0012:0018:0023:00 3.5 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 110 149 189
February 242 313 385
March 365 501 637
April 601 756 910
May 620 809 998
June 685 852 1,020
July 666 812 958
August 631 794 957
September 467 602 737
October 279 375 472
November 119 153 187
December 87 129 171
Year 5,325 6,393 7,462

The months don’t add up exactly to the yearly figure, because each one is the typical value across many years.

Common questions

How much do solar panels produce in winter in Gdynia?

From November to February the system produces about 745 kWh, which is 12% of the year. The weakest month (December) gives roughly 129 kWh.

Is an east-west roof worth it in Gdynia?

An east-west system typically produces 10–25% less per kWp than one facing south, but spreads production more evenly through the day. The exact difference depends on tilt and shading.

Compare an east-west roof for Gdynia

Ground mount or roof in Gdynia?

A ground mount can be tilted and aimed freely, which can add some yield, but it costs more and needs space. Compare both for your own plot.

Check a ground-mounted system in Gdynia

Your roof is not an average roof

Set your own tilt, direction, shading and inverter limit and get a range for your address.

Calculate for my roof

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Climate data: Photovoltaic Geographical Information System (PVGIS) — European Commission, Joint Research Centre