Location data · Bavaria
Sun hours in Regensburg
How sunny is Regensburg? Over a year the sun delivers 1,398 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 3.83 peak sun hours per day in Regensburg. In 9 out of 10 years at least 1,318 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.83 kWh/m²/d
- P90 annual total
- 1,318 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 7.6°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.41 | 2.59 | 3.93 | 5.24 | 5.33 | 5.83 | 5.71 | 5.30 | 4.53 | 3.09 | 1.69 | 1.27 |
| P90 | 1.02 | 1.83 | 3.08 | 4.27 | 4.43 | 5.12 | 5.18 | 4.50 | 3.71 | 2.44 | 1.43 | 1.01 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Regensburg. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Regensburg
The annual optimum for Regensburg is 35° south; anything between 24° and 50° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 15.1 % versus the optimum. Adjusting twice a year would add 2.8 % here, monthly adjustment 3.6 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Regensburg?
A vertical south-facing railing in Regensburg harvests 983 kWh/m² per year — 70 % 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 105 % 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
- Schwandorf in Bayern3.72 kWh/m²/d34 km
- Straubing3.86 kWh/m²/d38 km
- Amberg3.71 kWh/m²/d51 km