Location data · Baden-Württemberg
Sun hours in Tübingen
How sunny is Tübingen? Over a year the sun delivers 1,423 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 3.90 peak sun hours per day in Tübingen. In 9 out of 10 years at least 1,326 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.90 kWh/m²/d
- P90 annual total
- 1,326 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 11.8°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.73 | 2.76 | 3.99 | 4.93 | 5.05 | 5.67 | 5.65 | 5.20 | 4.66 | 3.27 | 2.15 | 1.68 |
| P90 | 1.31 | 1.94 | 2.92 | 3.88 | 4.47 | 4.76 | 4.95 | 4.50 | 3.99 | 2.62 | 1.51 | 1.29 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Tübingen. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Tübingen
The annual optimum for Tübingen is 40° south; anything between 25° and 52° counts as equivalent (below 2% difference). For winter operation (off-grid) 70° is optimal, for summer use 20°. Flat-laid modules lose 16.3 % versus the optimum. Adjusting twice a year would add 3.5 % here, monthly adjustment 4.6 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Tübingen?
A vertical south-facing railing in Tübingen harvests 1,028 kWh/m² per year — 72 % 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 120 % 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
- Reutlingen3.73 kWh/m²/d12 km
- Herrenberg4.00 kWh/m²/d16 km
- Sindelfingen3.85 kWh/m²/d20 km