Location data · Bavaria
Sun hours in Forchheim
How sunny is Forchheim? Over a year the sun delivers 1,350 kilowatt-hours onto every square metre here — in June roughly 5 times as much per day as in December. “Sun hours” has two meanings: the weather report counts how long the sun shines. For solar power what matters is how much energy arrives — and that is what this page shows, as peak sun hours (hours of full sun power).
For solar planning this means: an optimally tilted, south-facing array (35°) harvests an annual average of 3.70 peak sun hours per day in Forchheim. In 9 out of 10 years at least 1,259 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.70 kWh/m²/d
- P90 annual total
- 1,259 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 5.0°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.37 | 2.38 | 3.68 | 5.03 | 5.26 | 5.63 | 5.62 | 5.10 | 4.43 | 2.97 | 1.64 | 1.19 |
| P90 | 1.01 | 1.70 | 2.81 | 4.16 | 4.37 | 4.89 | 4.94 | 4.42 | 3.57 | 2.37 | 1.26 | 0.91 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Forchheim. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Forchheim
The annual optimum for Forchheim is 35° south; anything between 24° and 51° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 15.5 % versus the optimum. Adjusting twice a year would add 2.8 % here, monthly adjustment 3.7 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Forchheim?
A vertical south-facing railing in Forchheim harvests 960 kWh/m² per year — 71 % of what an optimally tilted 35° panel yields at the same spot. December softens the penalty: with the low winter sun, the vertical plane reaches 114 % of the 35° December value, computed from the same hourly data with its own plane transposition. Open the balcony solar calculator with these coordinates →
Neighbouring places compared
- Bamberg3.59 kWh/m²/d23 km
- Lauf an der Pegnitz3.62 kWh/m²/d28 km
- Nürnberg3.72 kWh/m²/d29 km