Location data · Rhineland-Palatinate
Sun hours in Bad Neuenahr-Ahrweiler
How sunny is Bad Neuenahr-Ahrweiler? Over a year the sun delivers 1,277 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 3.50 peak sun hours per day in Bad Neuenahr-Ahrweiler. In 9 out of 10 years at least 1,193 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.50 kWh/m²/d
- P90 annual total
- 1,193 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 8.0°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.29 | 2.31 | 3.47 | 4.77 | 5.00 | 5.31 | 5.24 | 4.76 | 4.15 | 2.77 | 1.66 | 1.18 |
| P90 | 1.03 | 1.73 | 2.73 | 4.01 | 4.22 | 4.64 | 4.72 | 4.20 | 3.61 | 2.24 | 1.24 | 0.84 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Bad Neuenahr-Ahrweiler. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Bad Neuenahr-Ahrweiler
The annual optimum for Bad Neuenahr-Ahrweiler is 35° south; anything between 23° and 50° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 14.1 % versus the optimum. Adjusting twice a year would add 2.7 % here, monthly adjustment 3.8 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Bad Neuenahr-Ahrweiler?
A vertical south-facing railing in Bad Neuenahr-Ahrweiler harvests 909 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 110 % of the 35° December value, computed from the same hourly data with its own plane transposition. Open the balcony solar calculator with these coordinates →