University College Cork - Quad during Eclipse 2015

Ireland · 10 kWp reference system

Cork solar forecast

Photo: Darius Whelan, CC BY 2.0. Cropped, resized and converted to WebP by GridPassport.

Wednesday, August 5, 2026

About 29.7 kWh tomorrow

For a standard 10 kWp south-facing system in Cork, GridPassport estimates 29.7 kWh on Wednesday, August 5, 2026, with a likely range of 20.1-39.0 kWh. The strongest production window is expected at 12:00-16:00 local time.

Updated Aug 4, 2026, 07:53 PM GMT+1 · fresh snapshot
Likely range
20.1-39.0 kWh
Strongest window
12:00-16:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Cork

A standard 10 kWp system produces about 9,941 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 Cork's solar profile different? The typical annual yield is about 994 kWh per installed kWp, ranking Cork #2 of 5 modelled locations in Ireland. That is 1% above the median of the 5 Ireland locations in this dataset. May is typically the strongest month and December the weakest; the stronger month produces about 3.8 times as much.

See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuary Monthly output395 kWh Daily average12.8 kWh/day Year-to-year variation±73 kWh
MonthFebruary Monthly output528 kWh Daily average18.9 kWh/day Year-to-year variation±82 kWh
MonthMarch Monthly output839 kWh Daily average27.1 kWh/day Year-to-year variation±140 kWh
MonthApril Monthly output1,114 kWh Daily average37.1 kWh/day Year-to-year variation±152 kWh
MonthMay Monthly output1,245 kWh Daily average40.1 kWh/day Year-to-year variation±106 kWh
MonthJune Monthly output1,224 kWh Daily average40.8 kWh/day Year-to-year variation±124 kWh
MonthJuly Monthly output1,181 kWh Daily average38.1 kWh/day Year-to-year variation±107 kWh
MonthAugust Monthly output1,109 kWh Daily average35.8 kWh/day Year-to-year variation±107 kWh
MonthSeptember Monthly output887 kWh Daily average29.6 kWh/day Year-to-year variation±98 kWh
MonthOctober Monthly output622 kWh Daily average20.1 kWh/day Year-to-year variation±92 kWh
MonthNovember Monthly output473 kWh Daily average15.8 kWh/day Year-to-year variation±76 kWh
MonthDecember Monthly output324 kWh Daily average10.4 kWh/day Year-to-year variation±65 kWh

Nearby solar forecasts

Compare Cork 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.