Blick von der Hallgrímskirkja über Reykjavík

Iceland · 10 kWp reference system

Reykjavík solar forecast

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

Wednesday, August 5, 2026

About 11.7 kWh tomorrow

For a standard 10 kWp south-facing system in Reykjavík, GridPassport estimates 11.7 kWh on Wednesday, August 5, 2026, with a likely range of 7.4-15.6 kWh. The strongest production window is expected at 17:00-21:00 local time.

Updated Aug 4, 2026, 06:53 PM GMT · fresh snapshot
Likely range
7.4-15.6 kWh
Strongest window
17:00-21:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Reykjavík

A standard 10 kWp system produces about 7,096 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 Reykjavík's solar profile different? The typical annual yield is about 710 kWh per installed kWp, ranking Reykjavík #4 of 4 modelled locations in Iceland. That is 7% below the median of the 4 Iceland locations in this dataset. May is typically the strongest month and December the weakest; the stronger month produces about 147.3 times as much.

See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuary Monthly output32 kWh Daily average1.1 kWh/day Year-to-year variation±15 kWh
MonthFebruary Monthly output174 kWh Daily average6.2 kWh/day Year-to-year variation±52 kWh
MonthMarch Monthly output602 kWh Daily average19.4 kWh/day Year-to-year variation±164 kWh
MonthApril Monthly output889 kWh Daily average29.6 kWh/day Year-to-year variation±155 kWh
MonthMay Monthly output1,190 kWh Daily average38.4 kWh/day Year-to-year variation±162 kWh
MonthJune Monthly output1,108 kWh Daily average36.9 kWh/day Year-to-year variation±175 kWh
MonthJuly Monthly output1,118 kWh Daily average36.1 kWh/day Year-to-year variation±143 kWh
MonthAugust Monthly output970 kWh Daily average31.3 kWh/day Year-to-year variation±108 kWh
MonthSeptember Monthly output602 kWh Daily average20.1 kWh/day Year-to-year variation±90 kWh
MonthOctober Monthly output334 kWh Daily average10.8 kWh/day Year-to-year variation±73 kWh
MonthNovember Monthly output69 kWh Daily average2.3 kWh/day Year-to-year variation±25 kWh
MonthDecember Monthly output8 kWh Daily average0.3 kWh/day Year-to-year variation±5 kWh

Nearby solar forecasts

Compare Reykjavík 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.