Solarposition.org

Lower Saxony · Germany · 51.81° N · 10.34° E

Solar position in Clausthal-Zellerfeld

Sun position, daylight and the best solar panel angle for Clausthal-Zellerfeld — computed for 51.81° N, 10.34° E, 556 m above sea level.

Sunrise today07:58108° ESE
Sunset today18:06252° WSW
Best panel angle39°year-round, facing south
Off-grid angle72°best for the darkest month

The sun right now

Azimuth180.0°
Elevation26.4°
At solar noon, 13:02Open on the sun map

Sun in Clausthal-Zellerfeld today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn06:05sun 18° below horizon
Nautical dawn06:4412° below
Civil dawn07:236° below
Sunrise07:58108° ESE
Golden hour ends08:46sun 6° up
Solar noon13:0226.4° high
Golden hour starts17:18sun 6° up
Sunset18:06252° WSW
Civil dusk18:406° below
Nautical dusk19:2012° below
Astronomical dusk19:5818° below
Day length10 h 08 min

Sun path diagram for Clausthal-Zellerfeld

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice6789101112131415161718192021EquinoxDecember solstice9101112131415Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 61.6° at solar noon in Clausthal-Zellerfeld; on the December solstice only 14.8°. Sunrise swings from 49° NE in June to 129° SE in December — a 80° arc along the horizon.

Sunrise, sunset and sun height by month

Values for the 21st of each month, local clock time including daylight saving time.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January08:1212:3016:478 h 34 min18.4°
February07:2112:3217:4310 h 23 min27.8°
March06:1912:2618:3312 h 14 min38.5°
April06:0913:1720:2514 h 16 min50.2°
May05:1713:1521:1415 h 57 min58.4°
June04:5913:2021:4116 h 42 min61.6°
July05:2513:2421:2415 h 59 min58.6°
August06:1213:2120:2914 h 17 min50.2°
September07:0213:1119:1912 h 17 min38.8°
October07:5313:0218:1210 h 19 min27.4°
November07:4712:0416:208 h 33 min18.3°
December08:2312:1616:097 h 47 min14.8°

A year of daylight in Clausthal-Zellerfeld

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Clausthal-Zellerfeld

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

39°collects the most energy over a year: 1058 kWh per kWp.

72°gives the most in the darkest month — the one an off-grid system is sized for.

30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 39°Best worst-month 72°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°86782%0.4110.8×
15°98493%0.647.1×
30°104799%0.845.3×
39° year-round best1058100%0.944.6×
45°1053100%0.994.2×
52° = latitude103698%1.043.8×
60°100295%1.083.5×
70°93789%1.103.2×
72° off-grid best92187%1.103.2×
90°74671%1.052.6×

A fixed array in Clausthal-Zellerfeld produces the most over a year at 39°. The design month for an off-grid system is December: at 72° it makes 1.10 kWh per kWp a day, 17% more than at 39°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in Clausthal-Zellerfeld at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 39° (year-round best).

012345January: 1.38 (70°)1.4JanFebruary: 2.16 (70°)2.2FebMarch: 2.92 (70°)2.9MarApril: 3.53 (70°)3.5AprMay: 3.32 (70°)3.3MayJune: 3.23 (70°)3.2JunJuly: 3.15 (70°)3.2JulAugust: 3.15 (70°)3.1AugSeptember: 3.10 (70°)3.1SepOctober: 2.35 (70°)2.3OctNovember: 1.41 (70°)1.4NovDecember: 1.10 (70°)1.1Dec39°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 39°Mean temp.
January snow0.721.551.381.18-0.6 °C
February snow1.422.412.162.000.2 °C
March2.583.292.923.043.4 °C
April4.134.053.534.118.2 °C
May4.943.893.324.2612.4 °C
June5.353.833.234.3216.1 °C
July5.073.783.154.1418.4 °C
August4.293.763.153.8318.1 °C
September3.163.633.103.3613.9 °C
October1.802.702.352.299.0 °C
November0.851.621.411.274.3 °C
December0.541.241.100.940.8 °C
Year2.91 avg2.98 avg937 kWh1058 kWh

Sizing example. To run a 1 kWh-per-day load through December on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 1,070 Wp of panels at 70°, versus 1,260 Wp at 39°. The steep array is 15% smaller for the same winter. Size your own system.

Row spacing in Clausthal-Zellerfeld

Distance between rows of 2 m long panels (slope length) so that no row shades the next between 10:00 and 14:00 solar time on the winter solstice.

9.8 mrow pitch at 70°

7.7 mrow pitch at 39°

Row spacing calculator

How Clausthal-Zellerfeld compares in Germany

Against the other 959 places in Germany with climate data, for a fixed array at its best angle.

684thof 960 places in Germany for sunshine, shared: 2.91 peak sun hours a day on flat ground.

−4%solar energy a year compared with the average place in Germany: 1,058 against 1,097 kWh per kWp.

−8 mindaylight on the longest day, compared with Berlin: 16 h 42 min against 16 h 50 min.

39°best year-round tilt here; across Germany it runs from 38° in Munich to 41° in Flensburg.

Of the 960 places in Germany, Weil am Rhein and one other place get the most sun (3.42 peak sun hours a day) and Berlin and 3 other places the least (2.83); Clausthal-Zellerfeld ranks joint 684th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.10 kWh a day here, against 1.26 kWh on average in Germany. The shortest day lasts 7 h 47 min, +8 min compared with Berlin.

The sunniest places in Germany

Solar forecast for Clausthal-Zellerfeld, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Clausthal-Zellerfeld

What is the best solar panel angle in Clausthal-Zellerfeld?
For a fixed array facing south, the best year-round tilt in Clausthal-Zellerfeld is 39°, worth about 1058 kWh per kWp a year. An off-grid system that has to get through December does better at about 72°.
What time is sunrise and sunset in Clausthal-Zellerfeld today?
On 24 October 2026 the sun rises at 07:58 and sets at 18:06 local time (UTC+2), giving 10 h 08 min of daylight. Solar noon is at 13:02.
How many peak sun hours does Clausthal-Zellerfeld get?
On a flat surface 2.9 hours a day averaged over the year, from 0.5 in December to 5.4 in June. Panels tilted at 70° receive 1.2 sun hours a day in December.
How high does the sun get in Clausthal-Zellerfeld?
At solar noon the sun stands 61.6° above the horizon on the June solstice and 14.8° on the December solstice.
Is Clausthal-Zellerfeld a good place for solar panels?
With 2.9 peak sun hours a day on flat ground, Clausthal-Zellerfeld ranks joint 684th of 960 places in Germany for sunshine. A 1 kWp array at the best angle (39°) makes about 1,058 kWh a year here, 4% less than the average place in Germany.

Places near Clausthal-Zellerfeld

All places in Germany

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Sun positions: NREL Solar Position Algorithm. Climate: NASA POWER monthly climatology (NASA Langley Research Center). Forecast: Deutscher Wetterdienst, ICON-EU (CC BY 4.0), processed. Places: GeoNames (CC BY 4.0). Time zones: IANA. Sources and licences.