Location data · North Rhine-Westphalia
Sun hours in Rheine
How sunny is Rheine? Over a year the sun delivers 1,272 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 Rheine. In 9 out of 10 years at least 1,197 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
- 1,197 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 1.5°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.16 | 2.10 | 3.50 | 4.92 | 5.20 | 5.43 | 5.28 | 4.82 | 4.06 | 2.72 | 1.56 | 1.00 |
| P90 | 0.92 | 1.52 | 2.85 | 4.00 | 4.36 | 4.72 | 4.67 | 4.19 | 3.50 | 2.11 | 1.21 | 0.74 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Rheine. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Rheine
The annual optimum for Rheine is 40° south; anything between 25° and 52° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 15.9 % versus the optimum. Adjusting twice a year would add 3.1 % here, monthly adjustment 3.7 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Rheine?
A vertical south-facing railing in Rheine 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 112 % 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
- Steinfurt3.49 kWh/m²/d17 km
- Ibbenbüren3.43 kWh/m²/d19 km
- Greven3.53 kWh/m²/d24 km