Location data · Hesse
Sun hours in Marburg
How sunny is Marburg? Over a year the sun delivers 1,301 kilowatt-hours onto every square metre here — in June roughly 6 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 3.56 peak sun hours per day in Marburg. In 9 out of 10 years at least 1,222 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.56 kWh/m²/d
- P90 annual total
- 1,222 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 11.1°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.15 | 2.21 | 3.62 | 5.04 | 5.23 | 5.65 | 5.47 | 5.05 | 4.30 | 2.70 | 1.37 | 0.91 |
| P90 | 0.91 | 1.66 | 2.76 | 4.26 | 4.51 | 4.79 | 4.82 | 4.47 | 3.61 | 2.18 | 1.05 | 0.67 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Marburg. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Marburg
The annual optimum for Marburg is 35° south; anything between 22° and 49° counts as equivalent (below 2% difference). For winter operation (off-grid) 60° is optimal, for summer use 20°. Flat-laid modules lose 12.9 % versus the optimum. Adjusting twice a year would add 2.2 % here, monthly adjustment 3.0 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Marburg?
A vertical south-facing railing in Marburg harvests 908 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 105 % 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
- Stadtallendorf3.59 kWh/m²/d17 km
- Gießen3.72 kWh/m²/d26 km
- Wetzlar3.70 kWh/m²/d33 km