Shandong · China · 36.98° N · 120.71° E
Solar position in Laiyang
Sun position, daylight and the best solar panel angle for Laiyang — computed for 36.98° N, 120.71° E, 40 m above sea level.
The sun right now
Sun in Laiyang today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:46 | sun 18° below horizon |
| Nautical dawn | 05:16 | 12° below |
| Civil dawn | 05:47 | 6° below |
| Sunrise | 06:13 | 104° ESE |
| Golden hour ends | 06:49 | sun 6° up |
| Solar noon | 11:41 | 41.0° high |
| Golden hour starts | 16:32 | sun 6° up |
| Sunset | 17:08 | 255° WSW |
| Civil dusk | 17:34 | 6° below |
| Nautical dusk | 18:05 | 12° below |
| Astronomical dusk | 18:35 | 18° below |
| Day length | 10 h 54 min | |
Sun path diagram for Laiyang
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 76.5° at solar noon in Laiyang; on the December solstice only 29.6°. Sunrise swings from 59° ENE in June to 119° ESE in December — a 60° 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 | 07:07 | 12:08 | 17:09 | 10 h 03 min | 33.1° |
| February | 06:39 | 12:10 | 17:42 | 11 h 04 min | 42.5° |
| March | 05:59 | 12:04 | 18:09 | 12 h 09 min | 53.3° |
| April | 05:15 | 11:56 | 18:36 | 13 h 21 min | 64.9° |
| May | 04:45 | 11:53 | 19:02 | 14 h 18 min | 73.2° |
| June | 04:37 | 11:58 | 19:19 | 14 h 42 min | 76.5° |
| July | 04:53 | 12:03 | 19:13 | 14 h 20 min | 73.5° |
| August | 05:18 | 12:00 | 18:41 | 13 h 23 min | 65.1° |
| September | 05:43 | 11:50 | 17:56 | 12 h 12 min | 53.8° |
| October | 06:09 | 11:41 | 17:13 | 11 h 03 min | 42.4° |
| November | 06:41 | 11:42 | 16:44 | 10 h 03 min | 33.1° |
| December | 07:06 | 11:55 | 16:43 | 9 h 37 min | 29.6° |
A year of daylight in Laiyang
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 Laiyang
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
33°collects the most energy over a year: 1367 kWh per kWp.
49°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° | 1186 | 87% | 1.69 | 2.8× |
| 15° | 1312 | 96% | 2.29 | 2.1× |
| 30° | 1365 | 100% | 2.75 | 1.7× |
| 33° year-round best | 1367 | 100% | 2.82 | 1.6× |
| 37° = latitude | 1364 | 100% | 2.90 | 1.6× |
| 45° | 1343 | 98% | 3.04 | 1.5× |
| 49° off-grid best | 1324 | 97% | 3.08 | 1.4× |
| 60° | 1246 | 91% | 3.14 | 1.6× |
| 70° | 1145 | 84% | 3.10 | 1.7× |
| 90° | 869 | 64% | 2.77 | 2.2× |
A fixed array in Laiyang produces the most over a year at 33°. The design month for an off-grid system is December: at 49° it makes 3.08 kWh per kWp a day, 9% more than at 33°, and costs 3% of the yearly total. Why steep panels win winter.
Off-grid solar in Laiyang at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 33° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 33° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.32 | 3.82 | 3.46 | 3.14 | -1.0 °C |
| February | 3.08 | 3.90 | 3.52 | 3.61 | 0.5 °C |
| March | 4.38 | 4.44 | 3.93 | 4.52 | 5.1 °C |
| April | 5.17 | 3.98 | 3.43 | 4.58 | 11.3 °C |
| May | 5.67 | 3.52 | 2.94 | 4.47 | 17.7 °C |
| June | 5.32 | 3.07 | 2.51 | 3.96 | 22.7 °C |
| July | 4.73 | 2.87 | 2.31 | 3.52 | 25.8 °C |
| August | 4.64 | 3.25 | 2.64 | 3.70 | 25.6 °C |
| September | 4.29 | 3.83 | 3.18 | 3.89 | 21.6 °C |
| October | 3.42 | 3.99 | 3.40 | 3.64 | 15.6 °C |
| November | 2.48 | 3.70 | 3.24 | 3.11 | 8.2 °C |
| December | 2.04 | 3.45 | 3.10 | 2.82 | 1.4 °C |
| Year | 3.97 avg | 3.65 avg | 1145 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 420 Wp at 33°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Laiyang
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.
4.5 mrow pitch at 70°
3.9 mrow pitch at 33°
How Laiyang compares in China
Against the other 2,094 places in China with climate data, for a fixed array at its best angle.
627thof 2,095 places in China for sunshine, shared: 3.97 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.
+31 mindaylight on the longest day, compared with Shanghai: 14 h 42 min against 14 h 11 min.
33°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); Laiyang ranks joint 627th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.32 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 9 h 37 min, −30 min compared with Shanghai.
Solar forecast for Laiyang, 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 Laiyang
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A free, live card for Laiyang: 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.