Across 10 modelled locations in Spain, a standard 10 kWp south-facing system produces about 15,797 kWh in a typical year on average. Tomorrow's weather-based city forecasts range from 20.9 to 58.3 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 Spain

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

51.1 kWh

Lowest city estimate

20.9 kWh

Highest city estimate

58.3 kWh

Representative locations

Solar forecasts for major cities in Spain

Barcelona55.0 kWh tomorrow Madrid56.4 kWh tomorrow Valencia51.0 kWh tomorrow

Typical year

Monthly solar production across Spain

The bars average the 10 city reference points. Typical annual output ranges from about 11,668 to 16,981 kWh for the 10 kWp setup. Of the locations modelled, Málaga has the highest typical annual output and Bilbao the lowest.

1056 Jan

1108 Feb

1357 Mar

1403 Apr

1535 May

1518 Jun

1613 Jul

1578 Aug

1395 Sep

1240 Oct

1011 Nov

981 Dec

January1,056 kWh

February1,108 kWh

March1,357 kWh

April1,403 kWh

May1,535 kWh

June1,518 kWh

July1,613 kWh

August1,578 kWh

September1,395 kWh

October1,240 kWh

November1,011 kWh

December981 kWh

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

Local profiles

All 10 Spain city forecasts

Alicante16,293 kWh typical year 51.8 kWh tomorrow Barcelona15,696 kWh typical year 55.0 kWh tomorrow Bilbao11,668 kWh typical year 20.9 kWh tomorrow Madrid16,194 kWh typical year 56.4 kWh tomorrow Málaga16,981 kWh typical year 54.0 kWh tomorrow Murcia16,299 kWh typical year 54.2 kWh tomorrow Seville16,716 kWh typical year 55.0 kWh tomorrow Valencia16,308 kWh typical year 51.0 kWh tomorrow Valladolid15,599 kWh typical year 58.3 kWh tomorrow Zaragoza16,214 kWh typical year 54.0 kWh tomorrow

Use the data

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

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