Location data · Hesse
Sun hours in Hanau
How sunny is Hanau? Over a year the sun delivers 1,363 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 3.73 peak sun hours per day in Hanau. In 9 out of 10 years at least 1,284 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.73 kWh/m²/d
- P90 annual total
- 1,284 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 2.7°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.36 | 2.37 | 3.76 | 5.14 | 5.34 | 5.77 | 5.67 | 5.17 | 4.50 | 2.90 | 1.61 | 1.13 |
| P90 | 0.88 | 1.75 | 2.87 | 4.30 | 4.46 | 4.83 | 5.05 | 4.46 | 3.82 | 2.35 | 1.20 | 0.82 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Hanau. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Hanau
The annual optimum for Hanau is 40° south; anything between 25° and 51° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 15.8 % versus the optimum. Adjusting twice a year would add 2.6 % here, monthly adjustment 3.5 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Hanau?
A vertical south-facing railing in Hanau harvests 973 kWh/m² per year — 71 % 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 115 % 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
- Maintal3.79 kWh/m²/d6 km
- Rodgau3.74 kWh/m²/d12 km
- Frankfurt am Main3.76 kWh/m²/d17 km