How much will solar panels produce in Marseille?

A 6 kWp system facing south at 35° tilt in Marseille produces about 9,716 kWh a year. In a weak year that is 8,142 kWh, in a good one 11,291 kWh — 1,619 kWh per kWp.

That’s about 207% of a typical home’s yearly use (4,700 kWh).

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Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6 kWp 556 kWh, range 412–700FebFebruary: 6 kWp 600 kWh, range 470–730MarMarch: 6 kWp 826 kWh, range 674–977AprApril: 6 kWp 912 kWh, range 761–1,063MayMay: 6 kWp 1,006 kWh, range 836–1,176JunJune: 6 kWp 1,007 kWh, range 843–1,170JulJuly: 6 kWp 1,089 kWh, range 911–1,267AugAugust: 6 kWp 1,045 kWh, range 877–1,213SepSeptember: 6 kWp 910 kWh, range 761–1,059OctOctober: 6 kWp 709 kWh, range 581–837NovNovember: 6 kWp 543 kWh, range 415–671DecDecember: 6 kWp 480 kWh, range 381–578

kWh per month

A typical day in July

The sunniest month in Marseille. Output peaks around 11:00 solar time, at about 4.4 kWh in the best hour.

0:006:0012:0018:0023:00 4.4 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 412 556 700
February 470 600 730
March 674 826 977
April 761 912 1,063
May 836 1,006 1,176
June 843 1,007 1,170
July 911 1,089 1,267
August 877 1,045 1,213
September 761 910 1,059
October 581 709 837
November 415 543 671
December 381 480 578
Year 8,142 9,716 11,291

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 Marseille?

From November to February the system produces about 2,178 kWh, which is 22% of the year. The weakest month (December) gives roughly 480 kWh.

Is an east-west roof worth it in Marseille?

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 Marseille

Ground mount or roof in Marseille?

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 Marseille

Your roof is not an average roof

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

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