Inner Mongolia · China · 43.97° N · 116.03° E
Solar position in Xilin Hot
Sun position, daylight and the best solar panel angle for Xilin Hot — computed for 43.97° N, 116.03° E, 982 m above sea level.
The sun right now
Sun in Xilin Hot today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:05 | sun 18° below horizon |
| Nautical dawn | 05:39 | 12° below |
| Civil dawn | 06:12 | 6° below |
| Sunrise | 06:42 | 106° ESE |
| Golden hour ends | 07:22 | sun 6° up |
| Solar noon | 11:59 | 34.0° high |
| Golden hour starts | 16:36 | sun 6° up |
| Sunset | 17:16 | 254° WSW |
| Civil dusk | 17:46 | 6° below |
| Nautical dusk | 18:19 | 12° below |
| Astronomical dusk | 18:53 | 18° below |
| Day length | 10 h 34 min | |
Sun path diagram for Xilin Hot
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 69.5° at solar noon in Xilin Hot; on the December solstice only 22.6°. Sunrise swings from 55° NE in June to 123° ESE in December — a 67° 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 | 07:43 | 12:27 | 17:10 | 9 h 27 min | 26.2° |
| February | 07:06 | 12:29 | 17:53 | 10 h 47 min | 35.5° |
| March | 06:18 | 12:23 | 18:28 | 12 h 11 min | 46.3° |
| April | 05:23 | 12:14 | 19:06 | 13 h 43 min | 57.9° |
| May | 04:44 | 12:12 | 19:41 | 14 h 57 min | 66.2° |
| June | 04:33 | 12:17 | 20:02 | 15 h 29 min | 69.5° |
| July | 04:52 | 12:22 | 19:51 | 14 h 59 min | 66.5° |
| August | 05:26 | 12:18 | 19:11 | 13 h 45 min | 58.2° |
| September | 06:01 | 12:08 | 18:15 | 12 h 15 min | 46.8° |
| October | 06:37 | 12:00 | 17:23 | 10 h 46 min | 35.4° |
| November | 07:17 | 12:01 | 16:44 | 9 h 27 min | 26.2° |
| December | 07:47 | 12:13 | 16:40 | 8 h 53 min | 22.6° |
A year of daylight in Xilin Hot
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 Xilin Hot
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
43°collects the most energy over a year: 1776 kWh per kWp.
62°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° | 1381 | 78% | 1.45 | 3.8× |
| 15° | 1606 | 90% | 2.25 | 2.6× |
| 30° | 1739 | 98% | 2.93 | 2.0× |
| 43° year-round best | 1776 | 100% | 3.38 | 1.8× |
| 44° = latitude | 1775 | 100% | 3.41 | 1.8× |
| 45° | 1775 | 100% | 3.44 | 1.8× |
| 60° | 1711 | 96% | 3.75 | 1.6× |
| 62° off-grid best | 1696 | 95% | 3.78 | 1.6× |
| 70° | 1617 | 91% | 3.84 | 1.8× |
| 90° | 1317 | 74% | 3.72 | 2.6× |
A fixed array in Xilin Hot produces the most over a year at 43°. The design month for an off-grid system is December: at 62° it makes 3.78 kWh per kWp a day, 12% more than at 43°, and costs 5% of the yearly total. Why steep panels win winter.
Off-grid solar in Xilin Hot at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 43° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 43° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.22 | 4.94 | 4.76 | 4.25 | -17.3 °C |
| February snow | 3.39 | 5.92 | 5.62 | 5.30 | -13.6 °C |
| March snow | 4.76 | 6.52 | 5.99 | 6.05 | -4.8 °C |
| April | 5.90 | 5.18 | 4.60 | 5.63 | 4.1 °C |
| May | 6.59 | 4.50 | 3.87 | 5.26 | 11.9 °C |
| June | 6.44 | 3.97 | 3.32 | 4.70 | 18.1 °C |
| July | 6.28 | 4.02 | 3.33 | 4.64 | 21.4 °C |
| August | 5.86 | 4.57 | 3.82 | 4.91 | 19.4 °C |
| September | 4.91 | 5.25 | 4.53 | 5.14 | 12.5 °C |
| October | 3.58 | 5.40 | 4.83 | 4.90 | 2.8 °C |
| November snow | 2.38 | 5.11 | 4.74 | 4.28 | -7.1 °C |
| December snow | 1.71 | 4.01 | 3.84 | 3.38 | -15.9 °C |
| Year | 4.51 avg | 4.94 avg | 1617 kWh | 1776 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 360 Wp of panels at 70°, versus 350 Wp at 43°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Xilin Hot
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.
6.0 mrow pitch at 70°
5.3 mrow pitch at 43°
How Xilin Hot compares in China
Against the other 2,094 places in China with climate data, for a fixed array at its best angle.
221stof 2,095 places in China for sunshine, shared: 4.51 peak sun hours a day on flat ground.
+41%solar energy a year compared with the average place in China: 1,776 against 1,262 kWh per kWp.
+1 h 18 mindaylight on the longest day, compared with Shanghai: 15 h 29 min against 14 h 11 min.
43°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); Xilin Hot ranks joint 221st. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 3.32 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 8 h 53 min, −1 h 14 min compared with Shanghai.
Solar forecast for Xilin Hot, 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 Xilin Hot
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A free, live card for Xilin Hot: 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.