Solarposition.org

Guizhou · China · 26.09° N · 108.77° E

Solar position in Jiuchao

Sun position, daylight and the best solar panel angle for Jiuchao — computed for 26.09° N, 108.77° E, 649 m above sea level.

Sunrise today06:49103° ESE
Sunset today18:08257° WSW
Best panel angle19°year-round, facing south
Off-grid angle41°best for the darkest month

The sun right now

Azimuth180.0°
Elevation51.8°
At solar noon, 12:28Open on the sun map

Sun in Jiuchao today

Sunday, 25 October 2026 · local time UTC+8

EventTimeDirection / height
Astronomical dawn05:31sun 18° below horizon
Nautical dawn05:5812° below
Civil dawn06:256° below
Sunrise06:49103° ESE
Golden hour ends07:20sun 6° up
Solar noon12:2851.8° high
Golden hour starts17:37sun 6° up
Sunset18:08257° WSW
Civil dusk18:326° below
Nautical dusk18:5912° below
Astronomical dusk19:2618° below
Day length11 h 19 min

Sun path diagram for Jiuchao

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 87.3° at solar noon in Jiuchao; on the December solstice only 40.5°. Sunrise swings from 63° ENE in June to 116° ESE in December — a 53° 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
January07:3312:5618:1910 h 46 min44.0°
February07:1512:5818:4111 h 26 min53.4°
March06:4812:5218:5612 h 08 min64.1°
April06:1612:4319:1112 h 55 min75.8°
May05:5612:4119:2713 h 31 min84.1°
June05:5312:4619:3913 h 46 min87.3°
July06:0512:5119:3713 h 32 min84.4°
August06:2012:4819:1512 h 56 min76.0°
September06:3212:3818:4212 h 10 min64.6°
October06:4612:2918:1111 h 25 min53.2°
November07:0712:3017:5310 h 46 min44.0°
December07:2712:4217:5810 h 30 min40.5°

A year of daylight in Jiuchao

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 Jiuchao

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: 952 kWh per kWp.

41°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 41°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJanuary kWh/kWp/dayBest ÷ worst month
0°91396%1.352.7×
15°950100%1.542.4×
19° year-round best952100%1.572.3×
26° = latitude94799%1.622.2×
30°94099%1.642.1×
41° off-grid best90295%1.661.9×
45°88293%1.661.9×
60°78282%1.591.6×
70°69573%1.501.5×
90°49552%1.231.8×

A fixed array in Jiuchao produces the most over a year at 19°. The design month for an off-grid system is January: at 41° it makes 1.66 kWh per kWp a day, 6% more than at 19°, and costs 5% of the yearly total. Why steep panels win winter.

Off-grid solar in Jiuchao at 70°

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

01234January: 1.50 (70°)1.5JanFebruary: 1.66 (70°)1.7FebMarch: 1.74 (70°)1.7MarApril: 1.81 (70°)1.8AprMay: 1.67 (70°)1.7MayJune: 1.56 (70°)1.6JunJuly: 1.93 (70°)1.9JulAugust: 2.20 (70°)2.2AugSeptember: 2.28 (70°)2.3SepOctober: 2.18 (70°)2.2OctNovember: 2.30 (70°)2.3NovDecember: 2.01 (70°)2.0Dec19°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 19°Mean temp.
January1.651.741.501.575.1 °C
February2.091.941.661.918.5 °C
March2.612.061.742.2612.8 °C
April3.342.201.812.7317.8 °C
May3.692.061.672.8821.4 °C
June3.651.951.562.7723.8 °C
July4.622.401.933.5325.1 °C
August4.572.722.203.6124.7 °C
September3.772.772.283.1522.0 °C
October2.872.612.182.5717.4 °C
November2.402.692.302.3412.4 °C
December1.912.302.011.936.5 °C
Year3.10 avg2.29 avg695 kWh952 kWh

Sizing example. To run a 1 kWh-per-day load through January on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 780 Wp of panels at 70°, versus 750 Wp at 19°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Jiuchao

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.

3.1 mrow pitch at 70°

2.7 mrow pitch at 19°

Row spacing calculator

How Jiuchao compares in China

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

1698thof 2,095 places in China for sunshine, shared: 3.10 peak sun hours a day on flat ground.

−25%solar energy a year compared with the average place in China: 952 against 1,262 kWh per kWp.

−24 mindaylight on the longest day, compared with Shanghai: 13 h 46 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); Jiuchao ranks joint 1698th. In its darkest month, January, 1 kWp of off-grid panels at 70° makes 1.50 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 10 h 30 min, +23 min compared with Shanghai.

The sunniest places in China

Solar forecast for Jiuchao, 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 Jiuchao

What is the best solar panel angle in Jiuchao?
For a fixed array facing south, the best year-round tilt in Jiuchao is 19°, worth about 952 kWh per kWp a year. An off-grid system that has to get through January does better at about 41°.
What time is sunrise and sunset in Jiuchao today?
On 25 October 2026 the sun rises at 06:49 and sets at 18:08 local time (UTC+8), giving 11 h 19 min of daylight. Solar noon is at 12:28.
How many peak sun hours does Jiuchao get?
On a flat surface 3.1 hours a day averaged over the year, from 1.6 in January to 4.6 in July. Panels tilted at 70° receive 1.7 sun hours a day in January.
How high does the sun get in Jiuchao?
At solar noon the sun stands 87.3° above the horizon on the June solstice and 40.5° on the December solstice.
Is Jiuchao a good place for solar panels?
With 3.1 peak sun hours a day on flat ground, Jiuchao ranks joint 1698th of 2,095 places in China for sunshine. A 1 kWp array at the best angle (19°) makes about 952 kWh a year here, 25% less than the average place in China.

Places near Jiuchao

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.