Breiavatnet in Stavanger, Norway.

Norway · 10 kWp reference system

Stavanger solar forecast

Photo: Ryan Hodnett, CC BY-SA 4.0. Cropped, resized and converted to WebP by GridPassport.

Wednesday, August 5, 2026

About 7.9 kWh tomorrow

For a standard 10 kWp south-facing system in Stavanger, GridPassport estimates 7.9 kWh on Wednesday, August 5, 2026, with a likely range of 4.6-11.2 kWh. The strongest production window is expected at 09:00-13:00 local time.

Updated Aug 4, 2026, 08:53 PM GMT+2 · fresh snapshot
Likely range
4.6-11.2 kWh
Strongest window
09:00-13:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Stavanger

A standard 10 kWp system produces about 8,433 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.

Values are kWh per month. Source: European Commission JRC PVGIS.

What makes Stavanger's solar profile different? The typical annual yield is about 843 kWh per installed kWp, ranking Stavanger #3 of 7 modelled locations in Norway. That is 2% above the median of the 7 Norway locations in this dataset. June is typically the strongest month and December the weakest; the stronger month produces about 12.2 times as much.

See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuary Monthly output164 kWh Daily average5.3 kWh/day Year-to-year variation±57 kWh
MonthFebruary Monthly output371 kWh Daily average13.2 kWh/day Year-to-year variation±86 kWh
MonthMarch Monthly output739 kWh Daily average23.9 kWh/day Year-to-year variation±167 kWh
MonthApril Monthly output1,076 kWh Daily average35.9 kWh/day Year-to-year variation±154 kWh
MonthMay Monthly output1,250 kWh Daily average40.3 kWh/day Year-to-year variation±189 kWh
MonthJune Monthly output1,266 kWh Daily average42.2 kWh/day Year-to-year variation±191 kWh
MonthJuly Monthly output1,106 kWh Daily average35.7 kWh/day Year-to-year variation±178 kWh
MonthAugust Monthly output969 kWh Daily average31.3 kWh/day Year-to-year variation±117 kWh
MonthSeptember Monthly output690 kWh Daily average23.0 kWh/day Year-to-year variation±95 kWh
MonthOctober Monthly output468 kWh Daily average15.1 kWh/day Year-to-year variation±97 kWh
MonthNovember Monthly output231 kWh Daily average7.7 kWh/day Year-to-year variation±58 kWh
MonthDecember Monthly output104 kWh Daily average3.4 kWh/day Year-to-year variation±30 kWh

Nearby solar forecasts

Compare Stavanger with nearby cities

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Method and data

Every city uses a 10 kWp system facing south at 35 degrees with 14% system losses. Tomorrow's figure combines hourly weather with GridPassport's PV production and uncertainty model. The monthly profile uses the European Commission JRC PVGIS multi-year climate series. Roof direction, shade, snow, dirt, inverter clipping and local weather can change real output.