Solarposition.org

Sichuan · China · 28.89° N · 105.43° E

Solar position in Luzhou

Sun position, daylight and the best solar panel angle for Luzhou — computed for 28.89° N, 105.43° E, 256 m above sea level.

Sunrise today07:05103° ESE
Sunset today18:18257° WSW
Best panel angle19°year-round, facing south
Off-grid angle45°best for the darkest month

The sun right now

Azimuth180.0°
Elevation49.0°
At solar noon, 12:42Open on the sun map

Sun in Luzhou today

Sunday, 25 October 2026 · local time UTC+8

EventTimeDirection / height
Astronomical dawn05:46sun 18° below horizon
Nautical dawn06:1312° below
Civil dawn06:416° below
Sunrise07:05103° ESE
Golden hour ends07:37sun 6° up
Solar noon12:4249.0° high
Golden hour starts17:46sun 6° up
Sunset18:18257° WSW
Civil dusk18:436° below
Nautical dusk19:1012° below
Astronomical dusk19:3818° below
Day length11 h 13 min

Sun path diagram for Luzhou

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 solstice78910111213141516171819EquinoxDecember solstice891011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 84.5° at solar noon in Luzhou; on the December solstice only 37.7°. Sunrise swings from 62° ENE in June to 117° ESE in December — a 54° 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
January07:5113:0918:2710 h 36 min41.2°
February07:3113:1218:5211 h 20 min50.6°
March07:0113:0519:0912 h 08 min61.4°
April06:2612:5719:2713 h 01 min73.0°
May06:0412:5419:4513 h 42 min81.3°
June06:0013:0019:5913 h 59 min84.5°
July06:1213:0419:5613 h 43 min81.6°
August06:3013:0119:3213 h 02 min73.2°
September06:4612:5118:5612 h 11 min61.8°
October07:0212:4218:2211 h 20 min50.4°
November07:2512:4318:0210 h 36 min41.2°
December07:4712:5618:0510 h 18 min37.7°

A year of daylight in Luzhou

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 Luzhou

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

19°collects the most energy over a year: 941 kWh per kWp.

45°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 19°Best worst-month 45°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°90596%1.173.4×
15°940100%1.352.8×
19° year-round best941100%1.382.7×
29° = latitude93099%1.452.5×
30°92799%1.462.5×
45° off-grid best86892%1.502.2×
60°76681%1.461.9×
70°67972%1.391.7×
90°47751%1.161.6×

A fixed array in Luzhou produces the most over a year at 19°. The design month for an off-grid system is December: at 45° it makes 1.50 kWh per kWp a day, 8% more than at 19°, and costs 8% of the yearly total. Why steep panels win winter.

Off-grid solar in Luzhou at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 19° (year-round best).

012345January: 1.54 (70°)1.5JanFebruary: 1.90 (70°)1.9FebMarch: 2.17 (70°)2.2MarApril: 2.17 (70°)2.2AprMay: 1.87 (70°)1.9MayJune: 1.64 (70°)1.6JunJuly: 2.07 (70°)2.1JulAugust: 2.32 (70°)2.3AugSeptember: 2.01 (70°)2.0SepOctober: 1.58 (70°)1.6OctNovember: 1.66 (70°)1.7NovDecember: 1.39 (70°)1.4Dec19°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 19°Mean temp.
January1.641.781.541.575.8 °C
February2.272.211.902.118.8 °C
March3.092.572.172.7313.8 °C
April3.862.622.173.2018.7 °C
May4.042.311.873.1822.1 °C
June3.872.051.642.9524.7 °C
July4.952.602.073.7827.2 °C
August4.692.882.323.7226.7 °C
September3.232.472.012.7022.9 °C
October2.121.921.581.8617.8 °C
November1.821.961.661.7212.6 °C
December1.441.621.391.387.0 °C
Year3.09 avg2.25 avg679 kWh941 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 850 Wp of panels at 70°, versus 850 Wp at 19°. The steep array is 0% smaller for the same winter. Size your own system.

Row spacing in Luzhou

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.

3.4 mrow pitch at 70°

2.8 mrow pitch at 19°

Row spacing calculator

How Luzhou compares in China

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

1711thof 2,095 places in China for sunshine, shared: 3.09 peak sun hours a day on flat ground.

−25%solar energy a year compared with the average place in China: 941 against 1,262 kWh per kWp.

−11 mindaylight on the longest day, compared with Shanghai: 13 h 59 min against 14 h 11 min.

19°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); Luzhou ranks joint 1711th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.39 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 10 h 18 min, +11 min compared with Shanghai.

The sunniest places in China

Solar forecast for Luzhou, 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 Luzhou

What is the best solar panel angle in Luzhou?
For a fixed array facing south, the best year-round tilt in Luzhou is 19°, worth about 941 kWh per kWp a year. An off-grid system that has to get through December does better at about 45°.
What time is sunrise and sunset in Luzhou today?
On 25 October 2026 the sun rises at 07:05 and sets at 18:18 local time (UTC+8), giving 11 h 13 min of daylight. Solar noon is at 12:42.
How many peak sun hours does Luzhou get?
On a flat surface 3.1 hours a day averaged over the year, from 1.4 in December to 4.9 in July. Panels tilted at 70° receive 1.6 sun hours a day in December.
How high does the sun get in Luzhou?
At solar noon the sun stands 84.5° above the horizon on the June solstice and 37.7° on the December solstice.
Is Luzhou a good place for solar panels?
With 3.1 peak sun hours a day on flat ground, Luzhou ranks joint 1711th of 2,095 places in China for sunshine. A 1 kWp array at the best angle (19°) makes about 941 kWh a year here, 25% less than the average place in China.

Places near Luzhou

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.