Location data · Tyrol
Sun hours in Innsbruck
How sunny is Innsbruck? Over a year the sun delivers 1,336 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 3.66 peak sun hours per day in Innsbruck. In 9 out of 10 years at least 1,273 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.66 kWh/m²/d
- P90 annual total
- 1,273 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 22.9°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.31 | 3.16 | 4.95 | 5.49 | 4.76 | 4.72 | 4.72 | 4.56 | 4.01 | 3.51 | 1.81 | 0.92 |
| P90 | 1.08 | 2.77 | 4.42 | 4.86 | 3.94 | 3.92 | 4.12 | 3.88 | 3.34 | 2.73 | 1.27 | 0.72 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Innsbruck. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Innsbruck
The annual optimum for Innsbruck is 35° south; anything between 23° and 50° counts as equivalent (below 2% difference). For winter operation (off-grid) 60° is optimal, for summer use 15°. Flat-laid modules lose 14.3 % versus the optimum. Adjusting twice a year would add 3.0 % here, monthly adjustment 3.7 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Innsbruck?
A vertical south-facing railing in Innsbruck harvests 942 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 87 % 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
- Garmisch-Partenkirchen3.53 kWh/m²/d34 km
- Geretsried3.88 kWh/m²/d66 km
- Weilheim3.90 kWh/m²/d67 km