Location data · Baden-Württemberg
Sun hours in Herrenberg
How sunny is Herrenberg? Over a year the sun delivers 1,462 kilowatt-hours onto every square metre here — in June roughly 3 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 4.00 peak sun hours per day in Herrenberg. In 9 out of 10 years at least 1,366 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 4.00 kWh/m²/d
- P90 annual total
- 1,366 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 2.7°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.76 | 2.79 | 4.10 | 5.11 | 5.24 | 5.86 | 5.78 | 5.34 | 4.79 | 3.36 | 2.18 | 1.69 |
| P90 | 1.34 | 2.01 | 3.03 | 4.17 | 4.58 | 5.03 | 5.15 | 4.64 | 4.26 | 2.76 | 1.69 | 1.15 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Herrenberg. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Herrenberg
The annual optimum for Herrenberg is 40° 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 15.7 % versus the optimum. Adjusting twice a year would add 3.2 % here, monthly adjustment 4.0 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Herrenberg?
A vertical south-facing railing in Herrenberg harvests 1,039 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 109 % 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
- Tübingen3.90 kWh/m²/d16 km
- Sindelfingen3.85 kWh/m²/d16 km
- Calw3.87 kWh/m²/d16 km