Location data · Thuringia
Sun hours in Sömmerda
How sunny is Sömmerda? Over a year the sun delivers 1,349 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 3.70 peak sun hours per day in Sömmerda. In 9 out of 10 years at least 1,256 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.70 kWh/m²/d
- P90 annual total
- 1,256 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 1.5°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.32 | 2.22 | 3.66 | 5.08 | 5.49 | 5.79 | 5.55 | 5.07 | 4.41 | 2.87 | 1.64 | 1.17 |
| P90 | 1.02 | 1.51 | 2.81 | 4.21 | 4.93 | 5.28 | 4.94 | 4.34 | 3.76 | 2.32 | 1.30 | 0.91 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Sömmerda. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Sömmerda
The annual optimum for Sömmerda is 40° south; anything between 25° and 52° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 16.3 % versus the optimum. Adjusting twice a year would add 2.7 % here, monthly adjustment 3.7 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Sömmerda?
A vertical south-facing railing in Sömmerda harvests 974 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 116 % 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
- Erfurt3.58 kWh/m²/d21 km
- Weimar3.62 kWh/m²/d25 km
- Sondershausen3.70 kWh/m²/d29 km