Location data · Lower Austria
Sun hours in Wiener Neustadt
How sunny is Wiener Neustadt? Over a year the sun delivers 1,455 kilowatt-hours onto every square metre here — in June roughly 3 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 3.99 peak sun hours per day in Wiener Neustadt. In 9 out of 10 years at least 1,390 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.99 kWh/m²/d
- P90 annual total
- 1,390 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 5.3°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.94 | 3.00 | 4.05 | 5.13 | 5.12 | 5.53 | 5.70 | 5.29 | 4.60 | 3.46 | 2.20 | 1.77 |
| P90 | 1.49 | 2.32 | 3.20 | 4.39 | 4.38 | 4.85 | 5.03 | 4.63 | 3.87 | 2.80 | 1.91 | 1.52 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Wiener Neustadt. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Wiener Neustadt
The annual optimum for Wiener Neustadt 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 16.4 % versus the optimum. Adjusting twice a year would add 3.0 % here, monthly adjustment 3.9 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Wiener Neustadt?
A vertical south-facing railing in Wiener Neustadt harvests 1,038 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 107 % 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
- Baden4.07 kWh/m²/d22 km
- Wien3.93 kWh/m²/d46 km
- Eisenzicken4.21 kWh/m²/d59 km