Solarposition.org

Gansu · China · 32.95° N · 104.68° E

Solar position in Wenxian Chengguanzhen

Sun position, daylight and the best solar panel angle for Wenxian Chengguanzhen — computed for 32.95° N, 104.68° E, 1000 m above sea level.

Sunrise today07:13104° ESE
Sunset today18:17256° WSW
Best panel angle29°year-round, facing south
Off-grid angle34°best for the darkest month

The sun right now

Azimuth180.0°
Elevation45.0°
At solar noon, 12:45Open on the sun map

Sun in Wenxian Chengguanzhen today

Sunday, 25 October 2026 · local time UTC+8

EventTimeDirection / height
Astronomical dawn05:50sun 18° below horizon
Nautical dawn06:1812° below
Civil dawn06:476° below
Sunrise07:13104° ESE
Golden hour ends07:46sun 6° up
Solar noon12:4545.0° high
Golden hour starts17:43sun 6° up
Sunset18:17256° WSW
Civil dusk18:426° below
Nautical dusk19:1112° below
Astronomical dusk19:4018° below
Day length11 h 04 min

Sun path diagram for Wenxian Chengguanzhen

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 solstice7891011121314151617181920EquinoxDecember solstice91011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 80.5° at solar noon in Wenxian Chengguanzhen; on the December solstice only 33.6°. Sunrise swings from 61° ENE in June to 118° ESE in December — a 57° 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
January08:0213:1218:2210 h 20 min37.2°
February07:3813:1518:5111 h 13 min46.5°
March07:0413:0819:1312 h 09 min57.3°
April06:2413:0019:3513 h 11 min68.9°
May05:5812:5719:5713 h 59 min77.2°
June05:5313:0320:1214 h 20 min80.5°
July06:0713:0720:0714 h 01 min77.5°
August06:2813:0419:4013 h 12 min69.2°
September06:4812:5418:5912 h 11 min57.8°
October07:0912:4518:2111 h 12 min46.4°
November07:3612:4617:5610 h 20 min37.2°
December07:5912:5917:589 h 59 min33.6°

A year of daylight in Wenxian Chengguanzhen

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 Wenxian Chengguanzhen

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

29°collects the most energy over a year: 1163 kWh per kWp.

34°gives the most in the darkest month — the one an off-grid system is sized for.

50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 29°Best worst-month 34°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearOctober kWh/kWp/dayBest ÷ worst month
0°104990%2.141.9×
15°113598%2.401.6×
29° year-round best1163100%2.521.5×
30°1163100%2.521.5×
33° = latitude1161100%2.531.4×
34° off-grid best1160100%2.541.4×
45°112997%2.521.4×
60°103889%2.381.6×
70°94982%2.221.8×
90°71862%1.752.5×

A fixed array in Wenxian Chengguanzhen produces the most over a year at 29°. The design month for an off-grid system is October: at 34° it makes 2.54 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Wenxian Chengguanzhen at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 29° (year-round best).

01234January: 3.43 (70°)3.4JanFebruary: 2.85 (70°)2.9FebMarch: 2.78 (70°)2.8MarApril: 2.65 (70°)2.7AprMay: 2.33 (70°)2.3MayJune: 2.08 (70°)2.1JunJuly: 2.12 (70°)2.1JulAugust: 2.28 (70°)2.3AugSeptember: 1.99 (70°)2.0SepOctober: 2.22 (70°)2.2OctNovember: 2.89 (70°)2.9NovDecember: 3.57 (70°)3.6Dec29°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 29°Mean temp.
January snow2.563.773.433.15-1.8 °C
February2.863.182.853.061.0 °C
March3.523.162.783.365.6 °C
April4.323.092.653.7010.9 °C
May4.632.772.333.6614.8 °C
June4.512.522.083.4218.2 °C
July4.532.582.123.4420.2 °C
August4.172.752.283.3419.3 °C
September2.972.371.992.5615.1 °C
October2.602.582.222.529.9 °C
November2.473.262.892.854.5 °C
December snow2.423.943.573.15-0.7 °C
Year3.47 avg3.00 avg949 kWh1163 kWh

Sizing example. To run a 1 kWh-per-day load through September on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 590 Wp of panels at 70°, versus 470 Wp at 29°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Wenxian Chengguanzhen

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.

3.9 mrow pitch at 70°

3.4 mrow pitch at 29°

Row spacing calculator

How Wenxian Chengguanzhen compares in China

Against the other 2,094 places in China with climate data, for a fixed array at its best angle.

1461stof 2,095 places in China for sunshine, shared: 3.47 peak sun hours a day on flat ground.

−8%solar energy a year compared with the average place in China: 1,163 against 1,262 kWh per kWp.

+9 mindaylight on the longest day, compared with Shanghai: 14 h 20 min against 14 h 11 min.

29°best year-round tilt here; across China it runs from 14° in Haikou to 52° in Xilinji.

Of the 2,095 places in China, Nyêmo gets the most sun (5.75 peak sun hours a day) and Baima and 11 other places the least (2.91); Wenxian Chengguanzhen ranks joint 1461st. In its darkest month, September, 1 kWp of off-grid panels at 70° makes 1.99 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 9 h 59 min, −8 min compared with Shanghai.

The sunniest places in China

Solar forecast for Wenxian Chengguanzhen, 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 Wenxian Chengguanzhen

What is the best solar panel angle in Wenxian Chengguanzhen?
For a fixed array facing south, the best year-round tilt in Wenxian Chengguanzhen is 29°, worth about 1163 kWh per kWp a year. An off-grid system that has to get through October does better at about 34°.
What time is sunrise and sunset in Wenxian Chengguanzhen today?
On 25 October 2026 the sun rises at 07:13 and sets at 18:17 local time (UTC+8), giving 11 h 04 min of daylight. Solar noon is at 12:45.
How many peak sun hours does Wenxian Chengguanzhen get?
On a flat surface 3.5 hours a day averaged over the year, from 2.4 in December to 4.6 in May. Panels tilted at 70° receive 2.4 sun hours a day in September.
How high does the sun get in Wenxian Chengguanzhen?
At solar noon the sun stands 80.5° above the horizon on the June solstice and 33.6° on the December solstice.
Is Wenxian Chengguanzhen a good place for solar panels?
With 3.5 peak sun hours a day on flat ground, Wenxian Chengguanzhen ranks joint 1461st of 2,095 places in China for sunshine. A 1 kWp array at the best angle (29°) makes about 1,163 kWh a year here, 8% less than the average place in China.

Places near Wenxian Chengguanzhen

All places in China

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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.