Xinjiang · China · 46.75° N · 82.96° E
Solar position in Tacheng
Sun position, daylight and the best solar panel angle for Tacheng — computed for 46.75° N, 82.96° E, 546 m above sea level.
The sun right now
Sun in Tacheng today
Sunday, 25 October 2026 · local time UTC+6
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:17 | sun 18° below horizon |
| Nautical dawn | 05:53 | 12° below |
| Civil dawn | 06:28 | 6° below |
| Sunrise | 06:59 | 107° ESE |
| Golden hour ends | 07:42 | sun 6° up |
| Solar noon | 12:11 | 31.2° high |
| Golden hour starts | 16:41 | sun 6° up |
| Sunset | 17:24 | 253° WSW |
| Civil dusk | 17:55 | 6° below |
| Nautical dusk | 18:30 | 12° below |
| Astronomical dusk | 19:05 | 18° below |
| Day length | 10 h 25 min | |
Sun path diagram for Tacheng
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 66.7° at solar noon in Tacheng; on the December solstice only 19.9°. Sunrise swings from 53° NE in June to 124° SE in December — a 71° 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 | 08:04 | 12:39 | 17:14 | 9 h 10 min | 23.4° |
| February | 07:22 | 12:42 | 18:01 | 10 h 39 min | 32.7° |
| March | 06:29 | 12:35 | 18:41 | 12 h 12 min | 43.5° |
| April | 05:30 | 12:27 | 19:24 | 13 h 53 min | 55.1° |
| May | 04:47 | 12:24 | 20:02 | 15 h 15 min | 63.5° |
| June | 04:34 | 12:29 | 20:25 | 15 h 52 min | 66.7° |
| July | 04:55 | 12:34 | 20:13 | 15 h 18 min | 63.7° |
| August | 05:33 | 12:31 | 19:28 | 13 h 55 min | 55.3° |
| September | 06:13 | 12:21 | 18:28 | 12 h 15 min | 43.9° |
| October | 06:53 | 12:12 | 17:31 | 10 h 37 min | 32.6° |
| November | 07:38 | 12:13 | 16:48 | 9 h 10 min | 23.4° |
| December | 08:09 | 12:26 | 16:42 | 8 h 33 min | 19.9° |
A year of daylight in Tacheng
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 Tacheng
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
42°collects the most energy over a year: 1637 kWh per kWp.
72°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° | 1290 | 79% | 1.16 | 4.8× |
| 15° | 1492 | 91% | 1.83 | 3.1× |
| 30° | 1609 | 98% | 2.41 | 2.4× |
| 42° year-round best | 1637 | 100% | 2.78 | 1.9× |
| 45° | 1635 | 100% | 2.86 | 1.9× |
| 47° = latitude | 1631 | 100% | 2.90 | 1.8× |
| 60° | 1569 | 96% | 3.14 | 1.6× |
| 70° | 1476 | 90% | 3.22 | 1.5× |
| 72° off-grid best | 1453 | 89% | 3.23 | 1.5× |
| 90° | 1189 | 73% | 3.15 | 2.0× |
A fixed array in Tacheng produces the most over a year at 42°. The design month for an off-grid system is December: at 72° it makes 3.23 kWh per kWp a day, 16% more than at 42°, and costs 11% of the yearly total. Why steep panels win winter.
Off-grid solar in Tacheng at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 42° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 42° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.94 | 4.43 | 4.18 | 3.66 | -11.6 °C |
| February snow | 3.01 | 5.23 | 4.88 | 4.55 | -8.8 °C |
| March snow | 4.09 | 5.21 | 4.72 | 4.90 | -0.6 °C |
| April | 5.21 | 4.81 | 4.21 | 5.05 | 7.6 °C |
| May | 6.58 | 4.72 | 4.03 | 5.41 | 13.6 °C |
| June | 6.87 | 4.37 | 3.64 | 5.14 | 19.7 °C |
| July | 6.63 | 4.41 | 3.65 | 5.04 | 21.9 °C |
| August | 6.07 | 5.00 | 4.17 | 5.27 | 20.5 °C |
| September | 4.70 | 5.39 | 4.61 | 5.12 | 14.0 °C |
| October | 2.96 | 4.60 | 4.07 | 4.06 | 5.9 °C |
| November snow | 1.67 | 3.53 | 3.22 | 2.87 | -2.5 °C |
| December snow | 1.41 | 3.44 | 3.22 | 2.78 | -9.4 °C |
| Year | 4.27 avg | 4.59 avg | 1476 kWh | 1637 kWh |
Sizing example. To run a 1 kWh-per-day load through November on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 370 Wp of panels at 70°, versus 420 Wp at 42°. The steep array is 14% smaller for the same winter. Size your own system.
Row spacing in Tacheng
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.
7.0 mrow pitch at 70°
6.0 mrow pitch at 42°
How Tacheng compares in China
Against the other 2,094 places in China with climate data, for a fixed array at its best angle.
337thof 2,095 places in China for sunshine, shared: 4.27 peak sun hours a day on flat ground.
+30%solar energy a year compared with the average place in China: 1,637 against 1,262 kWh per kWp.
+1 h 41 mindaylight on the longest day, compared with Shanghai: 15 h 52 min against 14 h 11 min.
42°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); Tacheng ranks joint 337th. In its darkest month, November, 1 kWp of off-grid panels at 70° makes 3.22 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 8 h 33 min, −1 h 35 min compared with Shanghai.
Solar forecast for Tacheng, 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 Tacheng
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Places near Tacheng
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A free, live card for Tacheng: 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.