Solarposition.org

Chongqing · China · 30.16° N · 105.93° E

Solar position in Shanghe

Sun position, daylight and the best solar panel angle for Shanghe — computed for 30.16° N, 105.93° E, 247 m above sea level.

Sunrise today07:04103° ESE
Sunset today18:15256° WSW
Best panel angle19°year-round, facing south
Off-grid angle46°best for the darkest month

The sun right now

Azimuth180.0°
Elevation47.8°
At solar noon, 12:40Open on the sun map

Sun in Shanghe today

Sunday, 25 October 2026 · local time UTC+8

EventTimeDirection / height
Astronomical dawn05:44sun 18° below horizon
Nautical dawn06:1212° below
Civil dawn06:406° below
Sunrise07:04103° ESE
Golden hour ends07:37sun 6° up
Solar noon12:4047.8° high
Golden hour starts17:42sun 6° up
Sunset18:15256° WSW
Civil dusk18:396° below
Nautical dusk19:0812° below
Astronomical dusk19:3518° below
Day length11 h 11 min

Sun path diagram for Shanghe

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 83.3° at solar noon in Shanghe; on the December solstice only 36.4°. Sunrise swings from 62° ENE in June to 117° ESE in December — a 55° 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
January07:5113:0718:2310 h 31 min40.0°
February07:3113:1018:4911 h 18 min49.3°
March06:5913:0319:0812 h 09 min60.1°
April06:2312:5519:2713 h 04 min71.7°
May05:5912:5219:4613 h 47 min80.0°
June05:5512:5820:0014 h 06 min83.3°
July06:0813:0219:5613 h 49 min80.3°
August06:2612:5919:3113 h 05 min71.9°
September06:4312:4918:5412 h 11 min60.5°
October07:0212:4018:1911 h 17 min49.2°
November07:2612:4117:5710 h 31 min39.9°
December07:4812:5418:0010 h 12 min36.4°

A year of daylight in Shanghe

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 Shanghe

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: 939 kWh per kWp.

46°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 46°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°89996%1.173.3×
15°936100%1.372.8×
19° year-round best939100%1.412.6×
30° = latitude92799%1.492.4×
45°87193%1.542.1×
46° off-grid best86692%1.542.1×
60°77382%1.511.8×
70°68773%1.441.6×
90°48752%1.211.5×

A fixed array in Shanghe produces the most over a year at 19°. The design month for an off-grid system is December: at 46° it makes 1.54 kWh per kWp a day, 9% more than at 19°, and costs 8% of the yearly total. Why steep panels win winter.

Off-grid solar in Shanghe at 70°

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

01234January: 1.59 (70°)1.6JanFebruary: 1.78 (70°)1.8FebMarch: 2.17 (70°)2.2MarApril: 2.23 (70°)2.2AprMay: 1.94 (70°)1.9MayJune: 1.73 (70°)1.7JunJuly: 2.09 (70°)2.1JulAugust: 2.35 (70°)2.3AugSeptember: 2.01 (70°)2.0SepOctober: 1.65 (70°)1.6OctNovember: 1.62 (70°)1.6NovDecember: 1.44 (70°)1.4Dec19°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 19°Mean temp.
January1.651.831.591.605.9 °C
February2.142.071.781.988.7 °C
March3.052.562.172.7013.7 °C
April3.892.692.233.2418.9 °C
May4.082.381.943.2222.5 °C
June3.992.161.733.0525.4 °C
July4.852.632.093.7128.0 °C
August4.642.922.353.6827.6 °C
September3.192.472.012.6623.4 °C
October2.161.991.651.9018.2 °C
November1.761.911.621.6612.7 °C
December1.451.671.441.417.1 °C
Year3.08 avg2.28 avg687 kWh939 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 820 Wp of panels at 70°, versus 840 Wp at 19°. The steep array is 2% smaller for the same winter. Size your own system.

Row spacing in Shanghe

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.

3.6 mrow pitch at 70°

2.9 mrow pitch at 19°

Row spacing calculator

How Shanghe compares in China

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

1727thof 2,095 places in China for sunshine, shared: 3.08 peak sun hours a day on flat ground.

−26%solar energy a year compared with the average place in China: 938 against 1,262 kWh per kWp.

−5 mindaylight on the longest day, compared with Shanghai: 14 h 06 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); Shanghe ranks joint 1727th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.44 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 10 h 12 min, +5 min compared with Shanghai.

The sunniest places in China

Solar forecast for Shanghe, 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 Shanghe

What is the best solar panel angle in Shanghe?
For a fixed array facing south, the best year-round tilt in Shanghe is 19°, worth about 939 kWh per kWp a year. An off-grid system that has to get through December does better at about 46°.
What time is sunrise and sunset in Shanghe today?
On 25 October 2026 the sun rises at 07:04 and sets at 18:15 local time (UTC+8), giving 11 h 11 min of daylight. Solar noon is at 12:40.
How many peak sun hours does Shanghe 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 1.7 sun hours a day in December.
How high does the sun get in Shanghe?
At solar noon the sun stands 83.3° above the horizon on the June solstice and 36.4° on the December solstice.
Is Shanghe a good place for solar panels?
With 3.1 peak sun hours a day on flat ground, Shanghe ranks joint 1727th of 2,095 places in China for sunshine. A 1 kWp array at the best angle (19°) makes about 938 kWh a year here, 26% less than the average place in China.

Places near Shanghe

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.