Dated, weather-based
Tomorrow's forecast
Tomorrow's value is a weather-based estimate for Monday, October 5, 2026: 42.4 kWh from the 10 kWp reference system, with a likely range of 37.0 kWh–43.8 kWh. It changes with the next weather forecast.
Czechia · 10 kWp reference system
Opava solar forecast and PV yield
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
- Tomorrow's forecast
- 42.4 kWh 10 kWp reference system
- Typical annual output
- 10,937 kWh 10 kWp reference system
- Typical specific yield
- 1,094 kWh/kWp Per year
Monday, October 5, 2026
About 42.4 kWh tomorrow
For a standard 10 kWp south-facing system in Opava, GridPassport estimates 42.4 kWh on Monday, October 5, 2026, with a likely range of 37.0-43.8 kWh. The strongest production window is expected at 11:00-15:00 local time.
Updated Oct 4, 2026, 11:01 PM GMT+2 · Automatically refreshed- Likely range
- 37.0-43.8 kWh
- Strongest window
- 11:00-15:00
- Confidence
- high
How to read and use the data
Opava 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
Opava's PVGIS specific yield is about 1,094 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)12.7 kWh11.1 kWh–13.1 kWhPVGIS typical year3,281 kWh/year
5 kWpTomorrow estimate (likely range)21.2 kWh18.5 kWh–21.9 kWhPVGIS typical year5,468 kWh/year
10 kWpTomorrow estimate (likely range)42.4 kWh37.0 kWh–43.8 kWhPVGIS typical year10,937 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 21.2 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 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 12.7 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 Opava?
Using the same south-facing, 35-degree and 14% loss assumptions, the 5 kWp estimate is 21.2 kWh for Monday, October 5, 2026, with a scaled likely range of 18.5 kWh–21.9 kWh. This is a linear reference-system estimate, not a site survey.
What does 1,094 kWh/kWp mean for Opava?
It means the PVGIS multi-year profile produces about 1,094 kWh in a typical year for each installed kWp under the reference assumptions. A 5 kWp system therefore scales to about 5,468 kWh in a typical year before site-specific adjustments.
Is the Opava 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 Opava?
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 Opava
A standard 10 kWp system produces about 10,937 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.
407Jan
555Feb
952Mar
1192Apr
1253May
1292Jun
1334Jul
1254Aug
1043Sep
814Oct
468Nov
373Dec
Values are kWh per month. Source: European Commission JRC PVGIS.
What makes Opava's solar profile different?The typical annual yield is about 1,094 kWh per installed kWp, ranking Opava #7 of 20 modelled locations in Czechia. That is 2% above the median of the 20 Czechia locations in this dataset. July is typically the strongest month and December the weakest; the stronger month produces about 3.6 times as much.
See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuaryMonthly output407 kWhDaily average13.1 kWh/dayYear-to-year variation±114 kWh
MonthFebruaryMonthly output555 kWhDaily average19.8 kWh/dayYear-to-year variation±137 kWh
MonthMarchMonthly output952 kWhDaily average30.7 kWh/dayYear-to-year variation±183 kWh
MonthAprilMonthly output1,192 kWhDaily average39.7 kWh/dayYear-to-year variation±190 kWh
MonthMayMonthly output1,253 kWhDaily average40.4 kWh/dayYear-to-year variation±207 kWh
MonthJuneMonthly output1,292 kWhDaily average43.1 kWh/dayYear-to-year variation±177 kWh
MonthJulyMonthly output1,334 kWhDaily average43.0 kWh/dayYear-to-year variation±131 kWh
MonthAugustMonthly output1,254 kWhDaily average40.5 kWh/dayYear-to-year variation±107 kWh
MonthSeptemberMonthly output1,043 kWhDaily average34.8 kWh/dayYear-to-year variation±152 kWh
MonthOctoberMonthly output814 kWhDaily average26.3 kWh/dayYear-to-year variation±156 kWh
MonthNovemberMonthly output468 kWhDaily average15.6 kWh/dayYear-to-year variation±91 kWh
MonthDecemberMonthly output373 kWhDaily average12.0 kWh/dayYear-to-year variation±115 kWh
Nearby solar forecasts
Compare Opava with nearby cities
Tomorrow, in one email
Get Opava'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.