Location data · Schleswig-Holstein
Sun hours in Lübeck
How sunny is Lübeck? Over a year the sun delivers 1,248 kilowatt-hours onto every square metre here — in June roughly 7 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 3.42 peak sun hours per day in Lübeck. In 9 out of 10 years at least 1,189 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.42 kWh/m²/d
- P90 annual total
- 1,189 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) | 0.96 | 1.91 | 3.29 | 4.96 | 5.33 | 5.62 | 5.35 | 4.78 | 4.02 | 2.62 | 1.29 | 0.83 |
| P90 | 0.87 | 1.47 | 2.53 | 4.13 | 4.43 | 4.99 | 4.62 | 4.01 | 3.45 | 2.00 | 1.04 | 0.62 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Lübeck. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Lübeck
The annual optimum for Lübeck 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 25°. Flat-laid modules lose 15.0 % versus the optimum. Adjusting twice a year would add 2.5 % here, monthly adjustment 3.4 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Lübeck?
A vertical south-facing railing in Lübeck harvests 903 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 117 % 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
- Ahrensburg3.37 kWh/m²/d37 km
- Norderstedt3.34 kWh/m²/d49 km
- Wismar3.55 kWh/m²/d50 km