Across 6 modelled locations in Portugal, a standard 10 kWp south-facing system produces about 15,338 kWh in a typical year on average. Tomorrow's weather-based city forecasts range from 50.1 to 56.2 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 Portugal

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

53.7 kWh

Lowest city estimate

50.1 kWh

Highest city estimate

56.2 kWh

Representative locations

Solar forecasts for major cities in Portugal

Faro56.2 kWh tomorrow Lisbon55.0 kWh tomorrow Porto54.4 kWh tomorrow

Typical year

Monthly solar production across Portugal

The bars average the 6 city reference points. Typical annual output ranges from about 14,028 to 17,465 kWh for the 10 kWp setup. Of the locations modelled, Faro has the highest typical annual output and Braga the lowest.

966 Jan

1058 Feb

1287 Mar

1368 Apr

1515 May

1476 Jun

1627 Jul

1611 Aug

1433 Sep

1167 Oct

928 Nov

901 Dec

January966 kWh

February1,058 kWh

March1,287 kWh

April1,368 kWh

May1,515 kWh

June1,476 kWh

July1,627 kWh

August1,611 kWh

September1,433 kWh

October1,167 kWh

November928 kWh

December901 kWh

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

Local profiles

All 6 Portugal city forecasts

Aveiro15,042 kWh typical year 53.2 kWh tomorrow Braga14,028 kWh typical year 53.0 kWh tomorrow Coimbra14,621 kWh typical year 50.1 kWh tomorrow Faro17,465 kWh typical year 56.2 kWh tomorrow Lisbon15,784 kWh typical year 55.0 kWh tomorrow Porto15,089 kWh typical year 54.4 kWh tomorrow

Use the data

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

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