Location data · Lower Saxony
Sun hours in Celle
How sunny is Celle? Over a year the sun delivers 1,269 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 3.48 peak sun hours per day in Celle. In 9 out of 10 years at least 1,203 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.48 kWh/m²/d
- P90 annual total
- 1,203 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 0.8°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.12 | 2.10 | 3.34 | 4.96 | 5.21 | 5.57 | 5.30 | 4.84 | 4.09 | 2.66 | 1.44 | 1.02 |
| P90 | 0.88 | 1.56 | 2.60 | 4.06 | 4.46 | 5.16 | 4.74 | 4.14 | 3.59 | 2.00 | 1.07 | 0.74 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Celle. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Celle
The annual optimum for Celle is 40° south; anything between 25° and 52° counts as equivalent (below 2% difference). For winter operation (off-grid) 70° is optimal, for summer use 25°. Flat-laid modules lose 15.8 % versus the optimum. Adjusting twice a year would add 3.0 % here, monthly adjustment 4.0 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Celle?
A vertical south-facing railing in Celle harvests 925 kWh/m² per year — 73 % 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 121 % 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
- Langenhagen3.47 kWh/m²/d30 km
- Peine3.60 kWh/m²/d35 km
- Gifhorn3.52 kWh/m²/d36 km