Location data · North Rhine-Westphalia
Sun hours in Paderborn
How sunny is Paderborn? Over a year the sun delivers 1,251 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 3.43 peak sun hours per day in Paderborn. In 9 out of 10 years at least 1,175 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.43 kWh/m²/d
- P90 annual total
- 1,175 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 1.9°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.13 | 2.04 | 3.44 | 4.77 | 5.07 | 5.37 | 5.16 | 4.79 | 4.03 | 2.72 | 1.52 | 1.01 |
| P90 | 0.84 | 1.44 | 2.63 | 3.93 | 4.37 | 4.64 | 4.44 | 4.20 | 3.38 | 2.15 | 1.03 | 0.69 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Paderborn. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Paderborn
The annual optimum for Paderborn is 40° south; anything between 26° and 53° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 17.1 % versus the optimum. Adjusting twice a year would add 3.3 % here, monthly adjustment 4.0 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Paderborn?
A vertical south-facing railing in Paderborn harvests 915 kWh/m² per year — 73 % 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 113 % of the 35° December value, computed from the same hourly data with its own plane transposition. Open the balcony solar calculator with these coordinates →