Dated, weather-based
Tomorrow's forecast
Tomorrow's value is a weather-based estimate for Monday, October 5, 2026: 2.7 kWh from the 10 kWp reference system, with a likely range of 1.6 kWh–3.8 kWh. It changes with the next weather forecast.
Ireland · 10 kWp reference system
Sligo solar forecast and PV yield
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
- Tomorrow's forecast
- 2.7 kWh 10 kWp reference system
- Typical annual output
- 8,485 kWh 10 kWp reference system
- Typical specific yield
- 849 kWh/kWp Per year
Monday, October 5, 2026
About 2.7 kWh tomorrow
For a standard 10 kWp south-facing system in Sligo, GridPassport estimates 2.7 kWh on Monday, October 5, 2026, with a likely range of 1.6-3.8 kWh. The strongest production window is expected at 11:00-15:00 local time.
Updated Oct 4, 2026, 10:01 PM GMT+1 · Automatically refreshed- Likely range
- 1.6-3.8 kWh
- Strongest window
- 11:00-15:00
- Confidence
- medium
How to read and use the data
Sligo solar forecast: daily weather versus long-term PV yield
The daily and annual figures answer different questions. Use the dated forecast to plan tomorrow, and the PVGIS specific yield to compare locations or estimate a typical year.
Multi-year climate baseline
PVGIS specific yield
Sligo's PVGIS specific yield is about 849 kWh/kWp per year. It is a multi-year climate benchmark, not a prediction for tomorrow or for this calendar year. In the PVGIS profile, May is typically the strongest month and December the weakest.
3, 5 and 10 kWp reference systems
Scale the same assumptions to your system size
SystemTomorrow estimate (likely range)PVGIS typical year
3 kWpTomorrow estimate (likely range)0.8 kWh0.5 kWh–1.1 kWhPVGIS typical year2,546 kWh/year
5 kWpTomorrow estimate (likely range)1.4 kWh0.8 kWh–1.9 kWhPVGIS typical year4,243 kWh/year
10 kWpTomorrow estimate (likely range)2.7 kWh1.6 kWh–3.8 kWhPVGIS typical year8,485 kWh/year
Linear reference scaling only: south-facing, 35° tilt and 14% system losses. It does not resize inverter clipping, shade or local roof constraints.
From forecast to a household plan
Battery, EV, heat pump and flexible loads
Treat the forecast as a gross solar-energy budget before household base load and conversion losses. The numbers support scheduling; they do not guarantee surplus.
Battery
Keep room for the solar window
Use 11:00-15:00 as the first candidate charging window. Battery state of charge, reserve settings and inverter limits still decide how much can be stored.
EV
Compare the charge with the 5 kWp budget
The scaled 5 kWp estimate is 1.4 kWh before household use. Compare the remainder after base load with the planned EV charge and stagger charging if needed.
Heat pump
Shift only flexible thermal demand
If comfort controls allow it, place discretionary hot-water heating or pre-heating inside 11:00-15:00. Never override frost protection, hygiene cycles or manufacturer limits.
Large loads
Avoid stacking appliances
A 3 kWp system scales to about 0.8 kWh for the day before household use. Run flexible loads sequentially during the strongest hours rather than assuming all forecast energy is simultaneous power.
Local questions
Solar forecast FAQ
How much could a 5 kWp solar system produce tomorrow in Sligo?
Using the same south-facing, 35-degree and 14% loss assumptions, the 5 kWp estimate is 1.4 kWh for Monday, October 5, 2026, with a scaled likely range of 0.8 kWh–1.9 kWh. This is a linear reference-system estimate, not a site survey.
What does 849 kWh/kWp mean for Sligo?
It means the PVGIS multi-year profile produces about 849 kWh in a typical year for each installed kWp under the reference assumptions. A 5 kWp system therefore scales to about 4,243 kWh in a typical year before site-specific adjustments.
Is the Sligo forecast the same as the PVGIS annual estimate?
No. Tomorrow's forecast uses dated weather and an uncertainty band for one day. The PVGIS figure is a multi-year climate-based specific yield used for typical monthly and annual comparisons.
When should a battery, EV or heat pump use solar in Sligo?
Start with 11:00-15:00, then check household base load, battery headroom, EV energy required and heat-pump safety or comfort constraints. The forecast estimates daily energy, not guaranteed instantaneous surplus.
Typical year
Solar production month by month in Sligo
A standard 10 kWp system produces about 8,485 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.
264Jan
433Feb
744Mar
1036Apr
1178May
1072Jun
1007Jul
945Aug
725Sep
537Oct
325Nov
218Dec
Values are kWh per month. Source: European Commission JRC PVGIS.
What makes Sligo's solar profile different?The typical annual yield is about 849 kWh per installed kWp, ranking Sligo #16 of 17 modelled locations in Ireland. That is 10% below the median of the 17 Ireland locations in this dataset. May is typically the strongest month and December the weakest; the stronger month produces about 5.4 times as much.
See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuaryMonthly output264 kWhDaily average8.5 kWh/dayYear-to-year variation±48 kWh
MonthFebruaryMonthly output433 kWhDaily average15.5 kWh/dayYear-to-year variation±72 kWh
MonthMarchMonthly output744 kWhDaily average24.0 kWh/dayYear-to-year variation±121 kWh
MonthAprilMonthly output1,036 kWhDaily average34.5 kWh/dayYear-to-year variation±133 kWh
MonthMayMonthly output1,178 kWhDaily average38.0 kWh/dayYear-to-year variation±118 kWh
MonthJuneMonthly output1,072 kWhDaily average35.8 kWh/dayYear-to-year variation±112 kWh
MonthJulyMonthly output1,007 kWhDaily average32.5 kWh/dayYear-to-year variation±71 kWh
MonthAugustMonthly output945 kWhDaily average30.5 kWh/dayYear-to-year variation±88 kWh
MonthSeptemberMonthly output725 kWhDaily average24.2 kWh/dayYear-to-year variation±80 kWh
MonthOctoberMonthly output537 kWhDaily average17.3 kWh/dayYear-to-year variation±75 kWh
MonthNovemberMonthly output325 kWhDaily average10.8 kWh/dayYear-to-year variation±56 kWh
MonthDecemberMonthly output218 kWhDaily average7.0 kWh/dayYear-to-year variation±42 kWh
Nearby solar forecasts
Compare Sligo with nearby cities
Tomorrow, in one email
Get Sligo's solar forecast by email
Tomorrow's expected production, likely range and strongest hours. One useful email each day.
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.
CSV and JSON snapshots are published under CC BY 4.0 with source attribution.