Dated, weather-based
Tomorrow's forecast
Tomorrow's value is a weather-based estimate for Tuesday, September 1, 2026: 50.2 kWh from the 10 kWp reference system, with a likely range of 44.1 kWh–53.9 kWh. It changes with the next weather forecast.
Croatia · 10 kWp reference system
Split solar forecast and PV yield
Photo: Tatyana Peshkova,CC BY-SA 4.0. Cropped, resized and converted to WebP by GridPassport.
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
- Tomorrow's forecast
- 50.2 kWh 10 kWp reference system
- Typical annual output
- 14,925 kWh 10 kWp reference system
- Typical specific yield
- 1,492 kWh/kWp Per year
Tuesday, September 1, 2026
About 50.2 kWh tomorrow
For a standard 10 kWp south-facing system in Split, GridPassport estimates 50.2 kWh on Tuesday, September 1, 2026, with a likely range of 44.1-53.9 kWh. The strongest production window is expected at 12:00-16:00 local time.
Updated Aug 31, 2026, 01:01 AM GMT+2 · fresh snapshot- Likely range
- 44.1-53.9 kWh
- Strongest window
- 12:00-16:00
- Confidence
- high
How to read and use the data
Split 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
Split's PVGIS specific yield is about 1,492 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, July 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)15.1 kWh13.2 kWh–16.2 kWhPVGIS typical year4,477 kWh/year
5 kWpTomorrow estimate (likely range)25.1 kWh22.1 kWh–26.9 kWhPVGIS typical year7,462 kWh/year
10 kWpTomorrow estimate (likely range)50.2 kWh44.1 kWh–53.9 kWhPVGIS typical year14,925 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 12:00-16:00 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 25.1 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 12:00-16:00. Never override frost protection, hygiene cycles or manufacturer limits.
Large loads
Avoid stacking appliances
A 3 kWp system scales to about 15.1 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 Split?
Using the same south-facing, 35-degree and 14% loss assumptions, the 5 kWp estimate is 25.1 kWh for Tuesday, September 1, 2026, with a scaled likely range of 22.1 kWh–26.9 kWh. This is a linear reference-system estimate, not a site survey.
What does 1,492 kWh/kWp mean for Split?
It means the PVGIS multi-year profile produces about 1,492 kWh in a typical year for each installed kWp under the reference assumptions. A 5 kWp system therefore scales to about 7,462 kWh in a typical year before site-specific adjustments.
Is the Split 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 Split?
Start with 12:00-16:00, 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 Split
A standard 10 kWp system produces about 14,925 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.
871Jan
938Feb
1289Mar
1397Apr
1490May
1540Jun
1678Jul
1617Aug
1377Sep
1177Oct
782Nov
768Dec
Values are kWh per month. Source: European Commission JRC PVGIS.
What makes Split's solar profile different?The typical annual yield is about 1,492 kWh per installed kWp, ranking Split #1 of 5 modelled locations in Croatia. That is 15% above the median of the 5 Croatia locations in this dataset. July is typically the strongest month and December the weakest; the stronger month produces about 2.2 times as much.
See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuaryMonthly output871 kWhDaily average28.1 kWh/dayYear-to-year variation±154 kWh
MonthFebruaryMonthly output938 kWhDaily average33.5 kWh/dayYear-to-year variation±148 kWh
MonthMarchMonthly output1,289 kWhDaily average41.6 kWh/dayYear-to-year variation±197 kWh
MonthAprilMonthly output1,397 kWhDaily average46.6 kWh/dayYear-to-year variation±132 kWh
MonthMayMonthly output1,490 kWhDaily average48.1 kWh/dayYear-to-year variation±129 kWh
MonthJuneMonthly output1,540 kWhDaily average51.3 kWh/dayYear-to-year variation±85 kWh
MonthJulyMonthly output1,678 kWhDaily average54.1 kWh/dayYear-to-year variation±69 kWh
MonthAugustMonthly output1,617 kWhDaily average52.2 kWh/dayYear-to-year variation±90 kWh
MonthSeptemberMonthly output1,377 kWhDaily average45.9 kWh/dayYear-to-year variation±72 kWh
MonthOctoberMonthly output1,177 kWhDaily average38.0 kWh/dayYear-to-year variation±113 kWh
MonthNovemberMonthly output782 kWhDaily average26.1 kWh/dayYear-to-year variation±149 kWh
MonthDecemberMonthly output768 kWhDaily average24.8 kWh/dayYear-to-year variation±162 kWh
Nearby solar forecasts
Compare Split with nearby cities
Tomorrow, in one email
Get Split'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.