Solarposition.org

Chongqing · China · 29.51° N · 105.95° E

Solar position in Banqiao

Sun position, daylight and the best solar panel angle for Banqiao — computed for 29.51° N, 105.95° E, 300 m above sea level.

Sunrise today07:04103° ESE
Sunset today18:16256° WSW
Best panel angle18°year-round, facing south
Off-grid angle45°best for the darkest month

The sun right now

Azimuth180.0°
Elevation48.4°
At solar noon, 12:40Open on the sun map

Sun in Banqiao today

Sunday, 25 October 2026 · local time UTC+8

EventTimeDirection / height
Astronomical dawn05:44sun 18° below horizon
Nautical dawn06:1112° below
Civil dawn06:396° below
Sunrise07:04103° ESE
Golden hour ends07:36sun 6° up
Solar noon12:4048.4° high
Golden hour starts17:43sun 6° up
Sunset18:16256° WSW
Civil dusk18:406° below
Nautical dusk19:0812° below
Astronomical dusk19:3618° below
Day length11 h 12 min

Sun path diagram for Banqiao

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 83.9° at solar noon in Banqiao; on the December solstice only 37.1°. 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
January07:5013:0718:2410 h 34 min40.6°
February07:3013:0918:4911 h 19 min49.9°
March06:5913:0319:0712 h 09 min60.7°
April06:2312:5519:2613 h 02 min72.4°
May06:0012:5219:4513 h 44 min80.7°
June05:5612:5719:5914 h 02 min83.9°
July06:0913:0219:5513 h 46 min81.0°
August06:2712:5919:3013 h 04 min72.6°
September06:4312:4918:5412 h 11 min61.2°
October07:0112:4018:1911 h 19 min49.8°
November07:2412:4117:5810 h 34 min40.6°
December07:4612:5418:0110 h 15 min37.1°

A year of daylight in Banqiao

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 Banqiao

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

18°collects the most energy over a year: 919 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 18°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°88596%1.103.5×
15°918100%1.273.0×
18° year-round best919100%1.302.9×
30° = latitude90698%1.382.6×
45° off-grid best84892%1.412.3×
60°74981%1.372.0×
70°66472%1.311.8×
90°46751%1.091.5×

A fixed array in Banqiao produces the most over a year at 18°. The design month for an off-grid system is December: at 45° it makes 1.41 kWh per kWp a day, 9% more than at 18°, and costs 8% of the yearly total. Why steep panels win winter.

Off-grid solar in Banqiao at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 18° (year-round best).

012345January: 1.43 (70°)1.4JanFebruary: 1.73 (70°)1.7FebMarch: 2.10 (70°)2.1MarApril: 2.14 (70°)2.1AprMay: 1.86 (70°)1.9MayJune: 1.65 (70°)1.7JunJuly: 2.09 (70°)2.1JulAugust: 2.35 (70°)2.3AugSeptember: 2.03 (70°)2.0SepOctober: 1.58 (70°)1.6OctNovember: 1.55 (70°)1.5NovDecember: 1.31 (70°)1.3Dec18°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 18°Mean temp.
January1.551.661.431.476.1 °C
February2.112.021.731.939.0 °C
March2.992.492.102.6314.0 °C
April3.772.592.143.1319.0 °C
May3.962.291.863.1222.5 °C
June3.852.071.652.9525.3 °C
July4.952.632.093.7928.0 °C
August4.702.922.353.7327.6 °C
September3.242.492.032.7023.6 °C
October2.101.921.581.8418.3 °C
November1.721.841.551.6013.0 °C
December1.371.531.311.307.4 °C
Year3.03 avg2.21 avg664 kWh919 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 900 Wp of panels at 70°, versus 910 Wp at 18°. The steep array is 1% smaller for the same winter. Size your own system.

Row spacing in Banqiao

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.

3.5 mrow pitch at 70°

2.8 mrow pitch at 18°

Row spacing calculator

How Banqiao compares in China

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

1875thof 2,095 places in China for sunshine, shared: 3.03 peak sun hours a day on flat ground.

−27%solar energy a year compared with the average place in China: 919 against 1,262 kWh per kWp.

−8 mindaylight on the longest day, compared with Shanghai: 14 h 02 min against 14 h 11 min.

18°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); Banqiao ranks joint 1875th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.31 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 10 h 15 min, +8 min compared with Shanghai.

The sunniest places in China

Solar forecast for Banqiao, 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 Banqiao

What is the best solar panel angle in Banqiao?
For a fixed array facing south, the best year-round tilt in Banqiao is 18°, worth about 919 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 Banqiao today?
On 25 October 2026 the sun rises at 07:04 and sets at 18:16 local time (UTC+8), giving 11 h 12 min of daylight. Solar noon is at 12:40.
How many peak sun hours does Banqiao get?
On a flat surface 3.0 hours a day averaged over the year, from 1.4 in December to 4.9 in July. Panels tilted at 70° receive 1.5 sun hours a day in December.
How high does the sun get in Banqiao?
At solar noon the sun stands 83.9° above the horizon on the June solstice and 37.1° on the December solstice.
Is Banqiao a good place for solar panels?
With 3.0 peak sun hours a day on flat ground, Banqiao ranks joint 1875th of 2,095 places in China for sunshine. A 1 kWp array at the best angle (18°) makes about 919 kWh a year here, 27% less than the average place in China.

Places near Banqiao

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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.