Location data · Saxony-Anhalt
Sun hours in Dessau
How sunny is Dessau? Over a year the sun delivers 1,339 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 3.67 peak sun hours per day in Dessau. In 9 out of 10 years at least 1,260 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.67 kWh/m²/d
- P90 annual total
- 1,260 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 3.8°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.30 | 2.28 | 3.48 | 5.03 | 5.48 | 5.73 | 5.49 | 5.03 | 4.35 | 2.89 | 1.68 | 1.21 |
| P90 | 0.96 | 1.63 | 2.72 | 4.13 | 4.65 | 5.17 | 4.87 | 4.39 | 3.63 | 2.16 | 1.34 | 0.91 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Dessau. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Dessau
The annual optimum for Dessau is 40° south; anything between 26° and 52° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 16.4 % versus the optimum. Adjusting twice a year would add 3.6 % here, monthly adjustment 4.6 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Dessau?
A vertical south-facing railing in Dessau harvests 984 kWh/m² per year — 74 % 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 119 % 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
- Zerbst/Anhalt3.71 kWh/m²/d18 km
- Köthen3.74 kWh/m²/d21 km
- Bitterfeld-Wolfen3.74 kWh/m²/d25 km