Jiangsu · China · 34.20° N · 117.60° E
Solar position in Shanji
Sun position, daylight and the best solar panel angle for Shanji — computed for 34.20° N, 117.60° E, 29 m above sea level.
The sun right now
Sun in Shanji today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:58 | sun 18° below horizon |
| Nautical dawn | 05:27 | 12° below |
| Civil dawn | 05:57 | 6° below |
| Sunrise | 06:22 | 104° ESE |
| Golden hour ends | 06:57 | sun 6° up |
| Solar noon | 11:53 | 43.7° high |
| Golden hour starts | 16:49 | sun 6° up |
| Sunset | 17:24 | 256° WSW |
| Civil dusk | 17:49 | 6° below |
| Nautical dusk | 18:19 | 12° below |
| Astronomical dusk | 18:48 | 18° below |
| Day length | 11 h 01 min | |
Sun path diagram for Shanji
Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.
- June solstice
- Equinox
- December solstice
- Today
On the June solstice the sun reaches 79.2° at solar noon in Shanji; on the December solstice only 32.4°. Sunrise swings from 61° ENE in June to 118° ESE in December — a 57° 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 07:13 | 12:20 | 17:28 | 10 h 15 min | 35.9° |
| February | 06:48 | 12:23 | 17:58 | 11 h 10 min | 45.2° |
| March | 06:12 | 12:17 | 18:21 | 12 h 09 min | 56.0° |
| April | 05:31 | 12:08 | 18:45 | 13 h 14 min | 67.6° |
| May | 05:04 | 12:06 | 19:08 | 14 h 05 min | 76.0° |
| June | 04:58 | 12:11 | 19:24 | 14 h 26 min | 79.2° |
| July | 05:12 | 12:16 | 19:19 | 14 h 07 min | 76.3° |
| August | 05:34 | 12:12 | 18:50 | 13 h 15 min | 67.9° |
| September | 05:56 | 12:02 | 18:08 | 12 h 12 min | 56.5° |
| October | 06:19 | 11:54 | 17:28 | 11 h 09 min | 45.1° |
| November | 06:47 | 11:55 | 17:02 | 10 h 15 min | 35.9° |
| December | 07:11 | 12:07 | 17:03 | 9 h 52 min | 32.4° |
A year of daylight in Shanji
Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.
Best solar panel angle in Shanji
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
30°collects the most energy over a year: 1259 kWh per kWp.
42°gives the most in the darkest month — the one an off-grid system is sized for.
- Yearly energy
- Worst-month energy
| Tilt | kWh/kWp per year | Share of best year | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1121 | 89% | 1.84 | 2.3× |
| 15° | 1223 | 97% | 2.44 | 1.7× |
| 30° year-round best | 1259 | 100% | 2.88 | 1.4× |
| 34° = latitude | 1257 | 100% | 2.97 | 1.4× |
| 42° off-grid best | 1239 | 98% | 3.11 | 1.3× |
| 45° | 1227 | 97% | 3.15 | 1.3× |
| 60° | 1129 | 90% | 3.23 | 1.4× |
| 70° | 1031 | 82% | 3.17 | 1.5× |
| 90° | 775 | 62% | 2.79 | 2.2× |
A fixed array in Shanji produces the most over a year at 30°. The design month for an off-grid system is December: at 42° it makes 3.11 kWh per kWp a day, 8% more than at 30°, and costs 2% of the yearly total. Why steep panels win winter.
Off-grid solar in Shanji at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 30° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 30° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.35 | 3.55 | 3.21 | 2.94 | -0.1 °C |
| February | 2.84 | 3.29 | 2.93 | 3.09 | 2.9 °C |
| March | 4.04 | 3.81 | 3.32 | 3.94 | 8.6 °C |
| April | 4.80 | 3.52 | 2.98 | 4.10 | 15.4 °C |
| May | 5.18 | 3.14 | 2.58 | 4.02 | 21.5 °C |
| June | 4.96 | 2.82 | 2.27 | 3.66 | 25.8 °C |
| July | 4.58 | 2.70 | 2.15 | 3.39 | 27.7 °C |
| August | 4.50 | 3.04 | 2.45 | 3.54 | 26.6 °C |
| September | 3.99 | 3.37 | 2.78 | 3.52 | 22.0 °C |
| October | 3.29 | 3.57 | 3.03 | 3.33 | 15.9 °C |
| November | 2.53 | 3.48 | 3.04 | 2.96 | 8.3 °C |
| December | 2.21 | 3.53 | 3.17 | 2.88 | 1.5 °C |
| Year | 3.78 avg | 3.32 avg | 1031 kWh | 1259 kWh |
Sizing example. To run a 1 kWh-per-day load through July on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 550 Wp of panels at 70°, versus 410 Wp at 30°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Shanji
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.
4.0 mrow pitch at 70°
3.5 mrow pitch at 30°
How Shanji compares in China
Against the other 2,094 places in China with climate data, for a fixed array at its best angle.
1019thof 2,095 places in China for sunshine, shared: 3.78 peak sun hours a day on flat ground.
±0%solar energy a year compared with the average place in China: 1,259 against 1,262 kWh per kWp.
+16 mindaylight on the longest day, compared with Shanghai: 14 h 26 min against 14 h 11 min.
30°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); Shanji ranks joint 1019th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.15 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 9 h 52 min, −15 min compared with Shanghai.
Solar forecast for Shanji, next 48 hours
Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.
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Questions about the sun in Shanji
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Places near Shanji
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A free, live card for Shanji: where the sun is right now on today's path, a countdown to sunset or sunrise, the daylight change, the moon phase at night and the best panel angle.
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.