Location data · Rhineland-Palatinate
Sun hours in Frankenthal
How sunny is Frankenthal? Over a year the sun delivers 1,426 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 3.91 peak sun hours per day in Frankenthal. In 9 out of 10 years at least 1,336 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.91 kWh/m²/d
- P90 annual total
- 1,336 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 2.7°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.51 | 2.61 | 4.02 | 5.36 | 5.44 | 5.93 | 5.79 | 5.31 | 4.75 | 3.10 | 1.76 | 1.24 |
| P90 | 1.17 | 1.97 | 3.07 | 4.49 | 4.70 | 5.04 | 5.20 | 4.49 | 4.10 | 2.62 | 1.39 | 0.89 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Frankenthal. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Frankenthal
The annual optimum for Frankenthal is 35° south; anything between 23° and 50° counts as equivalent (below 2% difference). For winter operation (off-grid) 60° is optimal, for summer use 20°. Flat-laid modules lose 14.5 % versus the optimum. Adjusting twice a year would add 2.9 % here, monthly adjustment 3.4 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Frankenthal?
A vertical south-facing railing in Frankenthal harvests 1,004 kWh/m² per year — 70 % 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 →