Location data · Thuringia
Sun hours in Eisenach
How sunny is Eisenach? Over a year the sun delivers 1,266 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 3.47 peak sun hours per day in Eisenach. In 9 out of 10 years at least 1,177 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.47 kWh/m²/d
- P90 annual total
- 1,177 kWh/m²
- Optimal tilt
- 40°
- 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 | 2.11 | 3.43 | 4.75 | 5.10 | 5.47 | 5.30 | 4.86 | 4.16 | 2.64 | 1.47 | 1.03 |
| P90 | 0.86 | 1.56 | 2.67 | 3.88 | 4.31 | 4.88 | 4.55 | 4.06 | 3.42 | 2.09 | 1.03 | 0.78 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Eisenach. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Eisenach
The annual optimum for Eisenach is 40° south; anything between 24° and 51° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 15.3 % versus the optimum. Adjusting twice a year would add 3.3 % here, monthly adjustment 4.0 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Eisenach?
A vertical south-facing railing in Eisenach harvests 909 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 111 % 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
- Mühlhausen/Thüringen3.66 kWh/m²/d27 km
- Gotha3.67 kWh/m²/d27 km
- Eschwege3.45 kWh/m²/d29 km