Location data · Rhineland-Palatinate
Sun hours in Neuwied
How sunny is Neuwied? Over a year the sun delivers 1,279 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 Neuwied. In 9 out of 10 years at least 1,191 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
- 1,191 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 4.2°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.21 | 2.24 | 3.53 | 4.97 | 5.08 | 5.44 | 5.28 | 4.87 | 4.20 | 2.63 | 1.45 | 1.08 |
| P90 | 0.87 | 1.60 | 2.66 | 4.21 | 4.12 | 4.47 | 4.65 | 4.28 | 3.64 | 2.06 | 1.10 | 0.85 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Neuwied. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Neuwied
The annual optimum for Neuwied 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 15.7 % versus the optimum. Adjusting twice a year would add 2.8 % here, monthly adjustment 3.7 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Neuwied?
A vertical south-facing railing in Neuwied harvests 916 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 109 % 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
- Koblenz3.60 kWh/m²/d12 km
- Bad Neuenahr-Ahrweiler3.50 kWh/m²/d28 km
- Limburg an der Lahn3.66 kWh/m²/d41 km