Dated, weather-based
Tomorrow's forecast
Tomorrow's value is a weather-based estimate for Tuesday, September 1, 2026: 41.4 kWh from the 10 kWp reference system, with a likely range of 27.3 kWh–51.4 kWh. It changes with the next weather forecast.
France · 10 kWp reference system
Bordeaux solar forecast and PV yield
Photo: Mariette,Public domain. Cropped, resized and converted to WebP by GridPassport.
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
- Tomorrow's forecast
- 41.4 kWh 10 kWp reference system
- Typical annual output
- 12,771 kWh 10 kWp reference system
- Typical specific yield
- 1,277 kWh/kWp Per year
Tuesday, September 1, 2026
About 41.4 kWh tomorrow
For a standard 10 kWp south-facing system in Bordeaux, GridPassport estimates 41.4 kWh on Tuesday, September 1, 2026, with a likely range of 27.3-51.4 kWh. The strongest production window is expected at 11:00-15:00 local time.
Updated Aug 31, 2026, 01:01 AM GMT+2 · fresh snapshot- Likely range
- 27.3-51.4 kWh
- Strongest window
- 11:00-15:00
- Confidence
- medium
How to read and use the data
Bordeaux 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
Bordeaux's PVGIS specific yield is about 1,277 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)12.4 kWh8.2 kWh–15.4 kWhPVGIS typical year3,831 kWh/year
5 kWpTomorrow estimate (likely range)20.7 kWh13.7 kWh–25.7 kWhPVGIS typical year6,386 kWh/year
10 kWpTomorrow estimate (likely range)41.4 kWh27.3 kWh–51.4 kWhPVGIS typical year12,771 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 20.7 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 12.4 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 Bordeaux?
Using the same south-facing, 35-degree and 14% loss assumptions, the 5 kWp estimate is 20.7 kWh for Tuesday, September 1, 2026, with a scaled likely range of 13.7 kWh–25.7 kWh. This is a linear reference-system estimate, not a site survey.
What does 1,277 kWh/kWp mean for Bordeaux?
It means the PVGIS multi-year profile produces about 1,277 kWh in a typical year for each installed kWp under the reference assumptions. A 5 kWp system therefore scales to about 6,386 kWh in a typical year before site-specific adjustments.
Is the Bordeaux 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 Bordeaux?
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 Bordeaux
A standard 10 kWp system produces about 12,771 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.
617Jan
832Feb
1105Mar
1239Apr
1324May
1320Jun
1396Jul
1376Aug
1256Sep
993Oct
708Nov
605Dec
Values are kWh per month. Source: European Commission JRC PVGIS.
What makes Bordeaux's solar profile different?The typical annual yield is about 1,277 kWh per installed kWp, ranking Bordeaux #6 of 10 modelled locations in France. That is close to the median of the 10 France locations in this dataset. July is typically the strongest month and December the weakest; the stronger month produces about 2.3 times as much.
See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuaryMonthly output617 kWhDaily average19.9 kWh/dayYear-to-year variation±100 kWh
MonthFebruaryMonthly output832 kWhDaily average29.7 kWh/dayYear-to-year variation±137 kWh
MonthMarchMonthly output1,105 kWhDaily average35.6 kWh/dayYear-to-year variation±151 kWh
MonthAprilMonthly output1,239 kWhDaily average41.3 kWh/dayYear-to-year variation±160 kWh
MonthMayMonthly output1,324 kWhDaily average42.7 kWh/dayYear-to-year variation±143 kWh
MonthJuneMonthly output1,320 kWhDaily average44.0 kWh/dayYear-to-year variation±109 kWh
MonthJulyMonthly output1,396 kWhDaily average45.0 kWh/dayYear-to-year variation±127 kWh
MonthAugustMonthly output1,376 kWhDaily average44.4 kWh/dayYear-to-year variation±83 kWh
MonthSeptemberMonthly output1,256 kWhDaily average41.9 kWh/dayYear-to-year variation±97 kWh
MonthOctoberMonthly output993 kWhDaily average32.0 kWh/dayYear-to-year variation±110 kWh
MonthNovemberMonthly output708 kWhDaily average23.6 kWh/dayYear-to-year variation±134 kWh
MonthDecemberMonthly output605 kWhDaily average19.5 kWh/dayYear-to-year variation±113 kWh
Nearby solar forecasts
Compare Bordeaux with nearby cities
Tomorrow, in one email
Get Bordeaux'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.