Location data · Bavaria
Sun hours in Geretsried
How sunny is Geretsried? Over a year the sun delivers 1,415 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 3.88 peak sun hours per day in Geretsried. In 9 out of 10 years at least 1,332 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.88 kWh/m²/d
- P90 annual total
- 1,332 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 18.3°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.99 | 3.42 | 4.11 | 4.82 | 4.67 | 5.22 | 5.22 | 5.01 | 4.47 | 3.64 | 2.28 | 1.67 |
| P90 | 1.60 | 2.62 | 3.17 | 3.86 | 3.75 | 4.38 | 4.51 | 4.16 | 3.69 | 3.05 | 1.58 | 1.20 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Geretsried. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Geretsried
The annual optimum for Geretsried is 40° south; anything between 26° and 52° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 17.2 % versus the optimum. Adjusting twice a year would add 3.3 % here, monthly adjustment 4.1 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Geretsried?
A vertical south-facing railing in Geretsried harvests 1,020 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 106 % 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
- Starnberg3.92 kWh/m²/d19 km
- Weilheim3.90 kWh/m²/d24 km
- Unterhaching3.90 kWh/m²/d25 km