Hebei · China · 37.93° N · 115.22° E
Solar position in Xinji
Sun position, daylight and the best solar panel angle for Xinji — computed for 37.93° N, 115.22° E, 33 m above sea level.
The sun right now
Sun in Xinji today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:08 | sun 18° below horizon |
| Nautical dawn | 05:39 | 12° below |
| Civil dawn | 06:10 | 6° below |
| Sunrise | 06:37 | 105° ESE |
| Golden hour ends | 07:13 | sun 6° up |
| Solar noon | 12:03 | 40.0° high |
| Golden hour starts | 16:52 | sun 6° up |
| Sunset | 17:28 | 255° WSW |
| Civil dusk | 17:55 | 6° below |
| Nautical dusk | 18:26 | 12° below |
| Astronomical dusk | 18:56 | 18° below |
| Day length | 10 h 52 min | |
Sun path diagram for Xinji
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 75.5° at solar noon in Xinji; on the December solstice only 28.7°. Sunrise swings from 59° ENE in June to 120° ESE in December — a 61° 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 | 07:31 | 12:30 | 17:29 | 9 h 58 min | 32.2° |
| February | 07:02 | 12:32 | 18:03 | 11 h 02 min | 41.5° |
| March | 06:21 | 12:26 | 18:31 | 12 h 10 min | 52.3° |
| April | 05:36 | 12:17 | 19:00 | 13 h 24 min | 63.9° |
| May | 05:04 | 12:15 | 19:27 | 14 h 23 min | 72.3° |
| June | 04:56 | 12:20 | 19:44 | 14 h 48 min | 75.5° |
| July | 05:12 | 12:25 | 19:37 | 14 h 25 min | 72.5° |
| August | 05:39 | 12:22 | 19:04 | 13 h 26 min | 64.2° |
| September | 06:05 | 12:12 | 18:18 | 12 h 13 min | 52.8° |
| October | 06:33 | 12:03 | 17:34 | 11 h 01 min | 41.4° |
| November | 07:05 | 12:04 | 17:03 | 9 h 58 min | 32.2° |
| December | 07:31 | 12:17 | 17:03 | 9 h 32 min | 28.7° |
A year of daylight in Xinji
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 Xinji
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
35°collects the most energy over a year: 1367 kWh per kWp.
40°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° | 1163 | 85% | 1.77 | 2.6× |
| 15° | 1298 | 95% | 2.49 | 1.9× |
| 30° | 1362 | 100% | 3.07 | 1.5× |
| 35° year-round best | 1367 | 100% | 3.23 | 1.4× |
| 38° = latitude | 1365 | 100% | 3.31 | 1.4× |
| 40° off-grid best | 1363 | 100% | 3.36 | 1.4× |
| 45° | 1351 | 99% | 3.47 | 1.4× |
| 60° | 1265 | 93% | 3.66 | 1.6× |
| 70° | 1169 | 86% | 3.66 | 1.7× |
| 90° | 904 | 66% | 3.38 | 2.4× |
A fixed array in Xinji produces the most over a year at 35°. The design month for an off-grid system is December: at 40° it makes 3.36 kWh per kWp a day, 4% more than at 35°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Xinji at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 35° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 35° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.30 | 4.08 | 3.72 | 3.28 | -2.8 °C |
| February | 2.94 | 3.82 | 3.45 | 3.53 | 0.5 °C |
| March | 4.37 | 4.57 | 4.01 | 4.56 | 7.3 °C |
| April | 5.20 | 4.06 | 3.45 | 4.54 | 15.1 °C |
| May | 5.79 | 3.66 | 3.01 | 4.47 | 22.1 °C |
| June | 5.30 | 3.12 | 2.51 | 3.85 | 26.9 °C |
| July | 4.73 | 2.92 | 2.33 | 3.47 | 28.3 °C |
| August | 4.54 | 3.24 | 2.62 | 3.60 | 26.3 °C |
| September | 3.99 | 3.62 | 3.00 | 3.64 | 21.2 °C |
| October | 3.22 | 3.85 | 3.29 | 3.51 | 14.0 °C |
| November | 2.45 | 3.84 | 3.40 | 3.25 | 5.1 °C |
| December snow | 2.13 | 4.03 | 3.66 | 3.23 | -1.4 °C |
| Year | 3.92 avg | 3.73 avg | 1169 kWh | 1367 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 510 Wp of panels at 70°, versus 370 Wp at 35°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Xinji
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.
4.6 mrow pitch at 70°
4.0 mrow pitch at 35°
How Xinji compares in China
Against the other 2,094 places in China with climate data, for a fixed array at its best angle.
736thof 2,095 places in China for sunshine, shared: 3.92 peak sun hours a day on flat ground.
+8%solar energy a year compared with the average place in China: 1,367 against 1,262 kWh per kWp.
+37 mindaylight on the longest day, compared with Shanghai: 14 h 48 min against 14 h 11 min.
35°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); Xinji ranks joint 736th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.33 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 9 h 32 min, −35 min compared with Shanghai.
Solar forecast for Xinji, 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 Xinji
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Places near Xinji
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A free, live card for Xinji: 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.