Location data · Thuringia
Sun hours in Sonneberg
How sunny is Sonneberg? Over a year the sun delivers 1,310 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 3.59 peak sun hours per day in Sonneberg. 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)
- 3.59 kWh/m²/d
- P90 annual total
- 1,240 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 8.8°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.22 | 2.20 | 3.50 | 4.99 | 5.22 | 5.60 | 5.56 | 5.03 | 4.37 | 2.78 | 1.46 | 1.06 |
| P90 | 0.86 | 1.67 | 2.67 | 4.05 | 4.31 | 4.81 | 4.78 | 4.26 | 3.63 | 2.04 | 1.11 | 0.79 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Sonneberg. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Sonneberg
The annual optimum for Sonneberg is 35° south; anything between 23° and 49° counts as equivalent (below 2% difference). For winter operation (off-grid) 60° is optimal, for summer use 20°. Flat-laid modules lose 14.0 % versus the optimum. Adjusting twice a year would add 2.6 % here, monthly adjustment 3.2 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Sonneberg?
A vertical south-facing railing in Sonneberg harvests 920 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 103 % 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
- Coburg3.61 kWh/m²/d19 km
- Saalfeld/Saale3.55 kWh/m²/d35 km
- Ilmenau3.53 kWh/m²/d40 km