Dated, weather-based
Tomorrow's forecast
Tomorrow's value is a weather-based estimate for Tuesday, September 1, 2026: 26.4 kWh from the 10 kWp reference system, with a likely range of 16.8 kWh–35.5 kWh. It changes with the next weather forecast.
United Kingdom · 10 kWp reference system
Edinburgh solar forecast and PV yield
Photo: Andrew Colin,CC BY 2.0. Cropped, resized and converted to WebP by GridPassport.
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
- Tomorrow's forecast
- 26.4 kWh 10 kWp reference system
- Typical annual output
- 9,002 kWh 10 kWp reference system
- Typical specific yield
- 900 kWh/kWp Per year
Tuesday, September 1, 2026
About 26.4 kWh tomorrow
For a standard 10 kWp south-facing system in Edinburgh, GridPassport estimates 26.4 kWh on Tuesday, September 1, 2026, with a likely range of 16.8-35.5 kWh. The strongest production window is expected at 10:00-14:00 local time.
Updated Aug 31, 2026, 12:01 AM GMT+1 · fresh snapshot- Likely range
- 16.8-35.5 kWh
- Strongest window
- 10:00-14:00
- Confidence
- medium
How to read and use the data
Edinburgh 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
Edinburgh's PVGIS specific yield is about 900 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)7.9 kWh5.0 kWh–10.7 kWhPVGIS typical year2,701 kWh/year
5 kWpTomorrow estimate (likely range)13.2 kWh8.4 kWh–17.8 kWhPVGIS typical year4,501 kWh/year
10 kWpTomorrow estimate (likely range)26.4 kWh16.8 kWh–35.5 kWhPVGIS typical year9,002 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 10:00-14:00 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 13.2 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 10:00-14:00. Never override frost protection, hygiene cycles or manufacturer limits.
Large loads
Avoid stacking appliances
A 3 kWp system scales to about 7.9 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 Edinburgh?
Using the same south-facing, 35-degree and 14% loss assumptions, the 5 kWp estimate is 13.2 kWh for Tuesday, September 1, 2026, with a scaled likely range of 8.4 kWh–17.8 kWh. This is a linear reference-system estimate, not a site survey.
What does 900 kWh/kWp mean for Edinburgh?
It means the PVGIS multi-year profile produces about 900 kWh in a typical year for each installed kWp under the reference assumptions. A 5 kWp system therefore scales to about 4,501 kWh in a typical year before site-specific adjustments.
Is the Edinburgh 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 Edinburgh?
Start with 10:00-14:00, 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 Edinburgh
A standard 10 kWp system produces about 9,002 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.
275Jan
464Feb
786Mar
1059Apr
1195May
1109Jun
1130Jul
1019Aug
820Sep
559Oct
368Nov
218Dec
Values are kWh per month. Source: European Commission JRC PVGIS.
What makes Edinburgh's solar profile different?The typical annual yield is about 900 kWh per installed kWp, ranking Edinburgh #10 of 12 modelled locations in United Kingdom. That is 5% below the median of the 12 United Kingdom locations in this dataset. May is typically the strongest month and December the weakest; the stronger month produces about 5.5 times as much.
See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuaryMonthly output275 kWhDaily average8.9 kWh/dayYear-to-year variation±56 kWh
MonthFebruaryMonthly output464 kWhDaily average16.6 kWh/dayYear-to-year variation±80 kWh
MonthMarchMonthly output786 kWhDaily average25.4 kWh/dayYear-to-year variation±124 kWh
MonthAprilMonthly output1,059 kWhDaily average35.3 kWh/dayYear-to-year variation±144 kWh
MonthMayMonthly output1,195 kWhDaily average38.6 kWh/dayYear-to-year variation±120 kWh
MonthJuneMonthly output1,109 kWhDaily average37.0 kWh/dayYear-to-year variation±133 kWh
MonthJulyMonthly output1,130 kWhDaily average36.5 kWh/dayYear-to-year variation±89 kWh
MonthAugustMonthly output1,019 kWhDaily average32.9 kWh/dayYear-to-year variation±86 kWh
MonthSeptemberMonthly output820 kWhDaily average27.3 kWh/dayYear-to-year variation±67 kWh
MonthOctoberMonthly output559 kWhDaily average18.0 kWh/dayYear-to-year variation±83 kWh
MonthNovemberMonthly output368 kWhDaily average12.3 kWh/dayYear-to-year variation±58 kWh
MonthDecemberMonthly output218 kWhDaily average7.0 kWh/dayYear-to-year variation±37 kWh
Nearby solar forecasts
Compare Edinburgh with nearby cities
Tomorrow, in one email
Get Edinburgh'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.