Location data · Saxony
Sun hours in Bautzen
How sunny is Bautzen? Over a year the sun delivers 1,346 kilowatt-hours onto every square metre here — in June roughly 4 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 3.69 peak sun hours per day in Bautzen. In 9 out of 10 years at least 1,240 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.69 kWh/m²/d
- P90 annual total
- 1,240 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) | 1.21 | 2.31 | 3.51 | 5.04 | 5.40 | 5.67 | 5.57 | 5.12 | 4.33 | 3.03 | 1.73 | 1.26 |
| P90 | 0.88 | 1.38 | 2.74 | 3.97 | 4.46 | 4.77 | 4.98 | 4.34 | 3.56 | 2.11 | 1.24 | 0.84 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Bautzen. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Bautzen
The annual optimum for Bautzen is 40° south; anything between 25° and 51° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 15.8 % versus the optimum. Adjusting twice a year would add 2.9 % here, monthly adjustment 3.6 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Bautzen?
A vertical south-facing railing in Bautzen harvests 967 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 110 % 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
- Hoyerswerda3.60 kWh/m²/d32 km
- Görlitz3.67 kWh/m²/d39 km
- Zittau3.53 kWh/m²/d41 km