Across 6 modelled locations in Greece, a standard 10 kWp south-facing system produces about 15,150 kWh in a typical year on average. Tomorrow's weather-based city forecasts range from 40.3 to 55.3 kWh for the same reference setup.

Forecast for Wednesday, August 5, 2026 · Updated Aug 4, 2026, 06:53 PM UTC · City samples, not a national production forecast

Tomorrow in Greece

One system. Different local weather.

Using the same installation in every location isolates the effect of weather and geography. Enter your own roof on any city page for a personal estimate.

City average

48.7 kWh

Lowest city estimate

40.3 kWh

Highest city estimate

55.3 kWh

Representative locations

Solar forecasts for major cities in Greece

Athens54.5 kWh tomorrow Patras45.9 kWh tomorrow Thessaloniki40.3 kWh tomorrow

Typical year

Monthly solar production across Greece

The bars average the 6 city reference points. Typical annual output ranges from about 14,462 to 15,782 kWh for the 10 kWp setup. Of the locations modelled, Heraklion has the highest typical annual output and Ioannina the lowest.

920 Jan

954 Feb

1269 Mar

1381 Apr

1472 May

1502 Jun

1636 Jul

1631 Aug

1400 Sep

1205 Oct

936 Nov

845 Dec

January920 kWh

February954 kWh

March1,269 kWh

April1,381 kWh

May1,472 kWh

June1,502 kWh

July1,636 kWh

August1,631 kWh

September1,400 kWh

October1,205 kWh

November936 kWh

December845 kWh

Typical monthly profiles use the European Commission JRC PVGIS multi-year climate series.

Local profiles

All 6 Greece city forecasts

Athens15,737 kWh typical year 54.5 kWh tomorrow Heraklion15,782 kWh typical year 55.3 kWh tomorrow Ioannina14,462 kWh typical year 45.2 kWh tomorrow Larissa14,628 kWh typical year 50.8 kWh tomorrow Patras15,623 kWh typical year 45.9 kWh tomorrow Thessaloniki14,670 kWh typical year 40.3 kWh tomorrow

Use the data

Download the country snapshot or inspect the assumptions, sources, uncertainty ranges and refresh rules.

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