Location data · Bavaria
Sun hours in Straubing
How sunny is Straubing? Over a year the sun delivers 1,407 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 3.86 peak sun hours per day in Straubing. In 9 out of 10 years at least 1,329 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.86 kWh/m²/d
- P90 annual total
- 1,329 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 11.8°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.38 | 2.62 | 3.98 | 5.24 | 5.35 | 5.93 | 5.85 | 5.33 | 4.58 | 3.09 | 1.66 | 1.18 |
| P90 | 1.03 | 1.74 | 3.05 | 4.30 | 4.40 | 5.33 | 5.24 | 4.49 | 3.79 | 2.43 | 1.38 | 0.90 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Straubing. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Straubing
The annual optimum for Straubing is 35° south; anything between 22° and 48° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 13.8 % versus the optimum. Adjusting twice a year would add 2.4 % here, monthly adjustment 3.1 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Straubing?
A vertical south-facing railing in Straubing harvests 973 kWh/m² per year — 69 % 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 105 % 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
- Deggendorf3.92 kWh/m²/d29 km
- Regensburg3.83 kWh/m²/d38 km
- Landshut3.91 kWh/m²/d49 km