Dated, weather-based
Tomorrow's forecast
For Friday, November 6, 2026, the 10 kWp city estimates average 7.5 kWh and span 4.9 kWh–11.6 kWh. That span is geographic variation between modelled cities, not an uncertainty interval or national forecast.
Switzerland Solar Forecast
Across 8 modelled locations in Switzerland, a standard 10 kWp south-facing system produces about 12,189 kWh in a typical year on average. Tomorrow's weather-based city forecasts range from 4.9 to 11.6 kWh for the same reference setup.
Current forecasts for 8 of 8 city locations · Updated Nov 5, 2026, 01:01 PM UTC · City samples, not a national production forecast
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
Tomorrow in Switzerland
One system. Different local weather.
Using the same installation in every location isolates the effect of weather and geography. Choose a nearby city below for its dated forecast and seasonal profile, then adjust the location, panel capacity and roof settings in the solar forecast calculator.
- City average
- 7.5 kWh
- Lowest city estimate
- 4.9 kWh
- Highest city estimate
- 11.6 kWh
Representative locations
Solar forecasts for major cities in Switzerland
Start with a location near your home. These are reference systems, not measurements of your roof or estimates of spare energy for a battery or car.
How to read and use the data
Switzerland solar outlook: tomorrow's city forecasts versus PVGIS yield
This page compares 8 modelled locations on one reference system. It is a city comparison tool, not a measurement or forecast of national solar generation.
Multi-year climate baseline
PVGIS specific yield
The modelled cities average about 1,219 kWh/kWp in the PVGIS typical-year profile. Across the 10 kWp reference systems, typical annual output ranges from 11,342 to 13,357 kWh. July has the highest modelled average monthly output and December the lowest.
3, 5 and 10 kWp reference systems
Scale the same assumptions to your system size
SystemTomorrow city average (city spread)PVGIS typical year
3 kWpTomorrow city average (city spread)2.2 kWh1.5 kWh–3.5 kWhPVGIS typical year3,657 kWh/year
5 kWpTomorrow city average (city spread)3.7 kWh2.5 kWh–5.8 kWhPVGIS typical year6,094 kWh/year
10 kWpTomorrow city average (city spread)7.5 kWh4.9 kWh–11.6 kWhPVGIS typical year12,189 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
Choose the nearest representative city before scheduling equipment. A country average can frame the day, but a local forecast and the home's own demand determine usable surplus.
Battery
Use the nearest city, not the country mean
Open the closest city profile and preserve battery headroom around its strongest forecast window. The 4.9 kWh–11.6 kWh country spread shows why one national schedule would be unreliable.
EV
Size the charge against local energy
The 5 kWp country-average reference is 3.7 kWh before household use, but select a city because local estimates span 2.5 kWh–5.8 kWh.
Heat pump
Follow the local production window
Shift only discretionary water heating or pre-heating after checking the nearest city's strongest hours. Comfort, frost protection and hygiene controls take priority.
Large loads
Stagger flexible appliances
Country figures are daily energy, not simultaneous power. Use a city forecast and run flexible loads sequentially after allowing for base household consumption.
Local questions
Solar forecast FAQ
How much could a 5 kWp solar system produce tomorrow in Switzerland?
Across the 8 modelled locations, the 5 kWp estimates average 3.7 kWh for Friday, November 6, 2026 and span 2.5 kWh–5.8 kWh between cities. The spread is geographic, not a national uncertainty range.
Which modelled Switzerland location has the highest typical PV output?
Lugano has the highest and St. Gallen the lowest typical annual output among the 8 locations in this dataset. The comparison uses the same 10 kWp reference system and PVGIS climate profile.
Is the Switzerland city range a national solar forecast?
No. It is the minimum-to-maximum spread across 8 modelled city reference points. It does not aggregate installed solar systems, represent every local weather condition or provide a national generation total.
How should I use the Switzerland forecast for a battery, EV or heat pump?
Select the nearest city and use its strongest forecast hours, then subtract household base load and respect battery, charger and heat-pump operating limits. Use the country page to compare locations, not to control equipment directly.
Typical year
Monthly solar production across Switzerland
The bars average the 8 city reference points. Typical annual output ranges from about 11,342 to 13,357 kWh for the 10 kWp setup. Of the locations modelled, Lugano has the highest typical annual output and St. Gallen the lowest.
614Jan
793Feb
1128Mar
1246Apr
1265May
1335Jun
1397Jul
1298Aug
1140Sep
891Oct
581Nov
502Dec
January614 kWh
February793 kWh
March1,128 kWh
April1,246 kWh
May1,265 kWh
June1,335 kWh
July1,397 kWh
August1,298 kWh
September1,140 kWh
October891 kWh
November581 kWh
December502 kWh
Typical monthly profiles use the European Commission JRC PVGIS multi-year climate series.
Local profiles
All 8 Switzerland city forecasts
Basel11,730 kWh typical year6.8 kWh tomorrowBern12,416 kWh typical year11.6 kWh tomorrowGeneva12,747 kWh typical year5.3 kWh tomorrowLausanne12,849 kWh typical year4.9 kWh tomorrowLucerne11,561 kWh typical year7.9 kWh tomorrowLugano13,357 kWh typical year5.4 kWh tomorrowSt. Gallen11,342 kWh typical year9.9 kWh tomorrowZurich11,506 kWh typical year8.0 kWh tomorrow
Use the data
Download the country dataset or inspect the assumptions, sources and refresh rules. CSV and JSON downloads use the same automatically refreshed forecasts as this page and are CC BY 4.0 with source attribution.
Tomorrow, in one email
Get Basel's solar forecast by email
A practical daily solar brief for the reference location in Switzerland: expected production, likely range and strongest hours.