Solarposition.org

Tsuen Wan · Hong Kong · 22.37° N · 114.05° E

Solar position in Sham Tseng

Sun position, daylight and the best solar panel angle for Sham Tseng — computed for 22.37° N, 114.05° E, 101 m above sea level.

Sunrise today06:24103° ESE
Sunset today17:51257° WSW
Best panel angle19°year-round, facing south
Off-grid angle24°best for the darkest month

The sun right now

Azimuth180.0°
Elevation55.6°
At solar noon, 12:07Open on the sun map

Sun in Sham Tseng today

Sunday, 25 October 2026 · local time UTC+8

EventTimeDirection / height
Astronomical dawn05:09sun 18° below horizon
Nautical dawn05:3512° below
Civil dawn06:016° below
Sunrise06:24103° ESE
Golden hour ends06:54sun 6° up
Solar noon12:0755.6° high
Golden hour starts17:20sun 6° up
Sunset17:51257° WSW
Civil dusk18:146° below
Nautical dusk18:4012° below
Astronomical dusk19:0618° below
Day length11 h 27 min

Sun path diagram for Sham Tseng

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 solstice678910111213141516171819EquinoxDecember solstice891011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 88.9° at solar noon in Sham Tseng; on the December solstice only 44.2°. Sunrise swings from 64° ENE in June to 115° ESE in December — a 51° 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
January07:0512:3518:0410 h 59 min47.7°
February06:5112:3718:2311 h 32 min57.1°
March06:2712:3118:3512 h 08 min67.9°
April05:5912:2218:4612 h 47 min79.5°
May05:4112:2018:5913 h 17 min87.8°
June05:4012:2519:1013 h 30 min88.9°
July05:5012:3019:0913 h 18 min88.1°
August06:0212:2718:5012 h 48 min79.7°
September06:1212:1618:2112 h 09 min68.3°
October06:2212:0817:5411 h 32 min57.0°
November06:3912:0917:3910 h 59 min47.7°
December06:5812:2117:4410 h 46 min44.2°

A year of daylight in Sham Tseng

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 Sham Tseng

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: 1253 kWh per kWp.

24°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 19°Best worst-month 24°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearFebruary kWh/kWp/dayBest ÷ worst month
0°119996%2.541.8×
15°1250100%2.791.5×
19° year-round best1253100%2.831.4×
22° = latitude1251100%2.851.4×
24° off-grid best1249100%2.871.4×
30°123599%2.891.4×
45°115492%2.841.4×
60°101381%2.631.6×
70°89271%2.421.9×
90°62550%1.852.5×

A fixed array in Sham Tseng produces the most over a year at 19°. The design month for an off-grid system is February: at 24° it makes 2.87 kWh per kWp a day, 1% more than at 19°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Sham Tseng at 70°

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

012345January: 2.88 (70°)2.9JanFebruary: 2.42 (70°)2.4FebMarch: 2.13 (70°)2.1MarApril: 1.98 (70°)2.0AprMay: 1.84 (70°)1.8MayJune: 1.69 (70°)1.7JunJuly: 1.87 (70°)1.9JulAugust: 2.18 (70°)2.2AugSeptember: 2.66 (70°)2.7SepOctober: 3.20 (70°)3.2OctNovember: 3.27 (70°)3.3NovDecember: 3.19 (70°)3.2Dec19°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 19°Mean temp.
January3.043.402.882.9416.3 °C
February3.142.892.422.8318.0 °C
March3.392.582.132.8620.3 °C
April3.962.441.983.1623.3 °C
May4.662.301.843.5426.3 °C
June4.802.141.693.5428.0 °C
July5.492.361.874.0628.6 °C
August5.122.742.183.9428.5 °C
September4.753.292.663.8827.7 °C
October4.393.913.203.8725.1 °C
November3.593.943.273.4021.7 °C
December3.143.773.193.1117.4 °C
Year4.13 avg2.98 avg892 kWh1253 kWh

Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 700 Wp of panels at 70°, versus 420 Wp at 19°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Sham Tseng

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.

2.8 mrow pitch at 70°

2.6 mrow pitch at 19°

Row spacing calculator

How Sham Tseng compares in Hong Kong

Against the other 135 places in Hong Kong with climate data, for a fixed array at its best angle.

101stof 136 places in Hong Kong for sunshine, shared: 4.13 peak sun hours a day on flat ground.

±0%solar energy a year compared with the average place in Hong Kong: 1,253 against 1,255 kWh per kWp.

±0 mindaylight on the longest day, compared with Hong Kong: 13 h 30 min against 13 h 30 min.

19°best year-round tilt here; across Hong Kong it runs from 18° in Shek O to 20° in Fanling.

Of the 136 places in Hong Kong, Shek O and one other place get the most sun (4.16 peak sun hours a day) and Sheung Shui and one other place the least (4.11); Sham Tseng ranks joint 101st. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.69 kWh a day here, against 1.69 kWh on average in Hong Kong. The shortest day lasts 10 h 46 min, ±0 min compared with Hong Kong.

The sunniest places in Hong Kong

Solar forecast for Sham Tseng, 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 Sham Tseng

What is the best solar panel angle in Sham Tseng?
For a fixed array facing south, the best year-round tilt in Sham Tseng is 19°, worth about 1253 kWh per kWp a year. An off-grid system that has to get through February does better at about 24°.
What time is sunrise and sunset in Sham Tseng today?
On 25 October 2026 the sun rises at 06:24 and sets at 17:51 local time (UTC+8), giving 11 h 27 min of daylight. Solar noon is at 12:07.
How many peak sun hours does Sham Tseng get?
On a flat surface 4.1 hours a day averaged over the year, from 3.0 in January to 5.5 in July. Panels tilted at 70° receive 2.1 sun hours a day in June.
How high does the sun get in Sham Tseng?
At solar noon the sun stands 88.9° above the horizon on the June solstice and 44.2° on the December solstice.
Is Sham Tseng a good place for solar panels?
With 4.1 peak sun hours a day on flat ground, Sham Tseng ranks joint 101st of 136 places in Hong Kong for sunshine. A 1 kWp array at the best angle (19°) makes about 1,253 kWh a year here, as much as the average place in Hong Kong.

Places near Sham Tseng

All places in Hong Kong

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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.