Location data · Bavaria
Sun hours in Deggendorf
How sunny is Deggendorf? Over a year the sun delivers 1,429 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 3.92 peak sun hours per day in Deggendorf. In 9 out of 10 years at least 1,356 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.92 kWh/m²/d
- P90 annual total
- 1,356 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) | 1.52 | 2.79 | 4.00 | 5.27 | 5.36 | 5.93 | 5.83 | 5.37 | 4.56 | 3.20 | 1.79 | 1.32 |
| P90 | 1.06 | 2.31 | 3.14 | 4.31 | 4.43 | 5.19 | 5.24 | 4.51 | 3.78 | 2.60 | 1.39 | 1.03 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Deggendorf. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Deggendorf
The annual optimum for Deggendorf is 35° south; anything between 23° and 50° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 15.0 % versus the optimum. Adjusting twice a year would add 2.7 % here, monthly adjustment 3.3 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Deggendorf?
A vertical south-facing railing in Deggendorf harvests 997 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 107 % 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
- Straubing3.86 kWh/m²/d29 km
- Passau3.85 kWh/m²/d46 km
- Regensburg3.83 kWh/m²/d66 km