Dated, weather-based
Tomorrow's forecast
Tomorrow's value is a weather-based estimate for Monday, October 5, 2026: 34.3 kWh from the 10 kWp reference system, with a likely range of 28.5 kWh–37.1 kWh. It changes with the next weather forecast.
Czechia · 10 kWp reference system
Karviná solar forecast and PV yield
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
- Tomorrow's forecast
- 34.3 kWh 10 kWp reference system
- Typical annual output
- 10,612 kWh 10 kWp reference system
- Typical specific yield
- 1,061 kWh/kWp Per year
Monday, October 5, 2026
About 34.3 kWh tomorrow
For a standard 10 kWp south-facing system in Karviná, GridPassport estimates 34.3 kWh on Monday, October 5, 2026, with a likely range of 28.5-37.1 kWh. The strongest production window is expected at 12:00-16:00 local time.
Updated Oct 4, 2026, 11:01 PM GMT+2 · Automatically refreshed- Likely range
- 28.5-37.1 kWh
- Strongest window
- 12:00-16:00
- Confidence
- medium
How to read and use the data
Karviná 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
Karviná's PVGIS specific yield is about 1,061 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)10.3 kWh8.6 kWh–11.1 kWhPVGIS typical year3,184 kWh/year
5 kWpTomorrow estimate (likely range)17.1 kWh14.3 kWh–18.6 kWhPVGIS typical year5,306 kWh/year
10 kWpTomorrow estimate (likely range)34.3 kWh28.5 kWh–37.1 kWhPVGIS typical year10,612 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 17.1 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 10.3 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 Karviná?
Using the same south-facing, 35-degree and 14% loss assumptions, the 5 kWp estimate is 17.1 kWh for Monday, October 5, 2026, with a scaled likely range of 14.3 kWh–18.6 kWh. This is a linear reference-system estimate, not a site survey.
What does 1,061 kWh/kWp mean for Karviná?
It means the PVGIS multi-year profile produces about 1,061 kWh in a typical year for each installed kWp under the reference assumptions. A 5 kWp system therefore scales to about 5,306 kWh in a typical year before site-specific adjustments.
Is the Karviná 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 Karviná?
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 Karviná
A standard 10 kWp system produces about 10,612 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.
385Jan
546Feb
911Mar
1145Apr
1193May
1255Jun
1318Jul
1234Aug
1014Sep
796Oct
464Nov
349Dec
Values are kWh per month. Source: European Commission JRC PVGIS.
What makes Karviná's solar profile different?The typical annual yield is about 1,061 kWh per installed kWp, ranking Karviná #16 of 20 modelled locations in Czechia. That is close to 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 3.8 times as much.
See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuaryMonthly output385 kWhDaily average12.4 kWh/dayYear-to-year variation±94 kWh
MonthFebruaryMonthly output546 kWhDaily average19.5 kWh/dayYear-to-year variation±115 kWh
MonthMarchMonthly output911 kWhDaily average29.4 kWh/dayYear-to-year variation±186 kWh
MonthAprilMonthly output1,145 kWhDaily average38.2 kWh/dayYear-to-year variation±198 kWh
MonthMayMonthly output1,193 kWhDaily average38.5 kWh/dayYear-to-year variation±200 kWh
MonthJuneMonthly output1,255 kWhDaily average41.8 kWh/dayYear-to-year variation±180 kWh
MonthJulyMonthly output1,318 kWhDaily average42.5 kWh/dayYear-to-year variation±130 kWh
MonthAugustMonthly output1,234 kWhDaily average39.8 kWh/dayYear-to-year variation±115 kWh
MonthSeptemberMonthly output1,014 kWhDaily average33.8 kWh/dayYear-to-year variation±150 kWh
MonthOctoberMonthly output796 kWhDaily average25.7 kWh/dayYear-to-year variation±167 kWh
MonthNovemberMonthly output464 kWhDaily average15.5 kWh/dayYear-to-year variation±97 kWh
MonthDecemberMonthly output349 kWhDaily average11.3 kWh/dayYear-to-year variation±100 kWh
Nearby solar forecasts
Compare Karviná with nearby cities
Tomorrow, in one email
Get Karviná'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.