Location data · Lower Saxony
Sun hours in Cuxhaven
How sunny is Cuxhaven? Over a year the sun delivers 1,238 kilowatt-hours onto every square metre here — in June roughly 7 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 3.39 peak sun hours per day in Cuxhaven. In 9 out of 10 years at least 1,173 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.39 kWh/m²/d
- P90 annual total
- 1,173 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 1.1°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.03 | 2.01 | 3.34 | 4.95 | 5.29 | 5.47 | 5.23 | 4.72 | 3.87 | 2.56 | 1.33 | 0.83 |
| P90 | 0.83 | 1.51 | 2.68 | 3.98 | 4.37 | 4.71 | 4.63 | 3.99 | 3.35 | 2.10 | 1.03 | 0.63 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Cuxhaven. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Cuxhaven
The annual optimum for Cuxhaven 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 25°. Flat-laid modules lose 16.7 % versus the optimum. Adjusting twice a year would add 2.4 % here, monthly adjustment 3.2 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Cuxhaven?
A vertical south-facing railing in Cuxhaven harvests 903 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 118 % 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
- Bremerhaven3.44 kWh/m²/d36 km
- Heide3.44 kWh/m²/d45 km
- Wilhelmshaven3.39 kWh/m²/d53 km