Beijing · China · 39.74° N · 116.33° E
Solar position in Daxing
Sun position, daylight and the best solar panel angle for Daxing — computed for 39.74° N, 116.33° E, 42 m above sea level.
The sun right now
Sun in Daxing today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:04 | sun 18° below horizon |
| Nautical dawn | 05:35 | 12° below |
| Civil dawn | 06:07 | 6° below |
| Sunrise | 06:35 | 105° ESE |
| Golden hour ends | 07:12 | sun 6° up |
| Solar noon | 11:58 | 38.2° high |
| Golden hour starts | 16:44 | sun 6° up |
| Sunset | 17:21 | 255° WSW |
| Civil dusk | 17:49 | 6° below |
| Nautical dusk | 18:21 | 12° below |
| Astronomical dusk | 18:52 | 18° below |
| Day length | 10 h 47 min | |
Sun path diagram for Daxing
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 73.7° at solar noon in Daxing; on the December solstice only 26.9°. Sunrise swings from 58° ENE in June to 120° ESE in December — a 62° 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 | 12:26 | 17:20 | 9 h 50 min | 30.4° |
| February | 06:59 | 12:28 | 17:57 | 10 h 57 min | 39.7° |
| March | 06:17 | 12:22 | 18:27 | 12 h 10 min | 50.5° |
| April | 05:29 | 12:13 | 18:58 | 13 h 29 min | 62.1° |
| May | 04:55 | 12:11 | 19:27 | 14 h 32 min | 70.4° |
| June | 04:46 | 12:16 | 19:46 | 14 h 59 min | 73.7° |
| July | 05:03 | 12:21 | 19:38 | 14 h 34 min | 70.7° |
| August | 05:32 | 12:17 | 19:03 | 13 h 31 min | 62.4° |
| September | 06:00 | 12:07 | 18:14 | 12 h 13 min | 51.0° |
| October | 06:30 | 11:59 | 17:27 | 10 h 57 min | 39.6° |
| November | 07:05 | 12:00 | 16:55 | 9 h 50 min | 30.4° |
| December | 07:31 | 12:12 | 16:53 | 9 h 21 min | 26.9° |
A year of daylight in Daxing
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 Daxing
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
39°collects the most energy over a year: 1480 kWh per kWp.
36°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 | July kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1203 | 81% | 3.78 | 2.7× |
| 15° | 1372 | 93% | 3.82 | 1.8× |
| 30° | 1464 | 99% | 3.66 | 1.4× |
| 36° off-grid best | 1478 | 100% | 3.55 | 1.4× |
| 39° year-round best | 1480 | 100% | 3.48 | 1.4× |
| 40° = latitude | 1479 | 100% | 3.46 | 1.4× |
| 45° | 1473 | 100% | 3.32 | 1.5× |
| 60° | 1400 | 95% | 2.82 | 1.7× |
| 70° | 1307 | 88% | 2.41 | 1.9× |
| 90° | 1035 | 70% | 1.52 | 2.8× |
A fixed array in Daxing produces the most over a year at 39°. The design month for an off-grid system is July: at 36° it makes 3.55 kWh per kWp a day, 2% more than at 39°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Daxing at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 39° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 39° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.41 | 4.87 | 4.49 | 3.97 | -5.1 °C |
| February snow | 3.13 | 4.65 | 4.23 | 4.16 | -1.7 °C |
| March | 4.49 | 4.97 | 4.41 | 4.92 | 4.9 °C |
| April | 5.36 | 4.33 | 3.72 | 4.76 | 13.1 °C |
| May | 5.93 | 3.81 | 3.16 | 4.55 | 20.4 °C |
| June | 5.30 | 3.17 | 2.57 | 3.81 | 24.8 °C |
| July | 4.79 | 3.00 | 2.41 | 3.48 | 26.7 °C |
| August | 4.73 | 3.45 | 2.81 | 3.76 | 25.1 °C |
| September | 4.18 | 3.97 | 3.31 | 3.93 | 19.9 °C |
| October | 3.30 | 4.24 | 3.66 | 3.85 | 12.0 °C |
| November | 2.48 | 4.27 | 3.82 | 3.63 | 3.0 °C |
| December snow | 2.17 | 4.82 | 4.42 | 3.82 | -3.8 °C |
| Year | 4.03 avg | 4.13 avg | 1307 kWh | 1480 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 490 Wp of panels at 70°, versus 340 Wp at 39°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Daxing
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.
5.0 mrow pitch at 70°
4.4 mrow pitch at 39°
How Daxing compares in China
Against the other 2,094 places in China with climate data, for a fixed array at its best angle.
487thof 2,095 places in China for sunshine, shared: 4.03 peak sun hours a day on flat ground.
+17%solar energy a year compared with the average place in China: 1,480 against 1,262 kWh per kWp.
+48 mindaylight on the longest day, compared with Shanghai: 14 h 59 min against 14 h 11 min.
39°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); Daxing ranks joint 487th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.41 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 9 h 21 min, −46 min compared with Shanghai.
Solar forecast for Daxing, 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 Daxing
What is the best solar panel angle in Daxing?
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Places near Daxing
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A free, live card for Daxing: 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.