Heilongjiang · China · 44.57° N · 129.39° E
Solar position in Hailin
Sun position, daylight and the best solar panel angle for Hailin — computed for 44.57° N, 129.39° E, 255 m above sea level.
The sun right now
Sun in Hailin today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:12 | sun 18° below horizon |
| Nautical dawn | 04:46 | 12° below |
| Civil dawn | 05:20 | 6° below |
| Sunrise | 05:50 | 106° ESE |
| Golden hour ends | 06:30 | sun 6° up |
| Solar noon | 11:06 | 33.4° high |
| Golden hour starts | 15:41 | sun 6° up |
| Sunset | 16:22 | 254° WSW |
| Civil dusk | 16:52 | 6° below |
| Nautical dusk | 17:26 | 12° below |
| Astronomical dusk | 18:00 | 18° below |
| Day length | 10 h 32 min | |
Sun path diagram for Hailin
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 68.9° at solar noon in Hailin; on the December solstice only 22.0°. Sunrise swings from 55° NE in June to 123° ESE in December — a 68° 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 | 06:52 | 11:33 | 16:15 | 9 h 23 min | 25.5° |
| February | 06:14 | 11:36 | 16:58 | 10 h 45 min | 34.9° |
| March | 05:24 | 11:29 | 17:35 | 12 h 11 min | 45.7° |
| April | 04:29 | 11:21 | 18:14 | 13 h 45 min | 57.3° |
| May | 03:49 | 11:19 | 18:49 | 15 h 01 min | 65.6° |
| June | 03:37 | 11:24 | 19:11 | 15 h 34 min | 68.9° |
| July | 03:56 | 11:28 | 19:00 | 15 h 03 min | 65.9° |
| August | 04:31 | 11:25 | 18:19 | 13 h 47 min | 57.6° |
| September | 05:07 | 11:15 | 17:22 | 12 h 15 min | 46.2° |
| October | 05:44 | 11:06 | 16:28 | 10 h 44 min | 34.8° |
| November | 06:26 | 11:08 | 15:49 | 9 h 24 min | 25.6° |
| December | 06:55 | 11:20 | 15:44 | 8 h 49 min | 22.0° |
A year of daylight in Hailin
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 Hailin
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
45°collects the most energy over a year: 1528 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 | November kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1175 | 77% | 1.72 | 3.0× |
| 15° | 1368 | 90% | 2.47 | 2.0× |
| 30° | 1489 | 97% | 3.09 | 1.6× |
| 45° year-round best = latitude | 1528 | 100% | 3.55 | 1.5× |
| 49° off-grid best | 1525 | 100% | 3.64 | 1.4× |
| 60° | 1486 | 97% | 3.81 | 1.6× |
| 70° | 1413 | 92% | 3.86 | 1.9× |
| 90° | 1174 | 77% | 3.68 | 2.7× |
A fixed array in Hailin produces the most over a year at 45°. The design month for an off-grid system is November: at 49° it makes 3.64 kWh per kWp a day, 3% more than at 45°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Hailin at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 45° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 45° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.18 | 4.92 | 4.74 | 4.29 | -17.9 °C |
| February snow | 3.23 | 5.56 | 5.29 | 5.04 | -14.1 °C |
| March snow | 4.23 | 5.53 | 5.10 | 5.19 | -5.4 °C |
| April | 4.75 | 4.15 | 3.67 | 4.43 | 4.3 °C |
| May | 5.26 | 3.72 | 3.19 | 4.18 | 12.1 °C |
| June | 5.49 | 3.54 | 2.96 | 4.02 | 17.8 °C |
| July | 5.10 | 3.43 | 2.83 | 3.78 | 20.8 °C |
| August | 4.67 | 3.68 | 3.07 | 3.83 | 19.7 °C |
| September | 4.26 | 4.48 | 3.84 | 4.35 | 13.6 °C |
| October | 3.05 | 4.45 | 3.96 | 4.06 | 4.3 °C |
| November snow | 2.04 | 4.17 | 3.86 | 3.55 | -6.3 °C |
| December snow | 1.76 | 4.22 | 4.04 | 3.60 | -15.8 °C |
| Year | 3.84 avg | 4.31 avg | 1413 kWh | 1528 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 420 Wp of panels at 70°, versus 330 Wp at 45°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Hailin
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.
6.2 mrow pitch at 70°
5.6 mrow pitch at 45°
How Hailin compares in China
Against the other 2,094 places in China with climate data, for a fixed array at its best angle.
894thof 2,095 places in China for sunshine, shared: 3.84 peak sun hours a day on flat ground.
+21%solar energy a year compared with the average place in China: 1,528 against 1,262 kWh per kWp.
+1 h 23 mindaylight on the longest day, compared with Shanghai: 15 h 34 min against 14 h 11 min.
45°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); Hailin ranks joint 894th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.83 kWh a day here, against 2.06 kWh on average in China. The shortest day lasts 8 h 49 min, −1 h 18 min compared with Shanghai.
Solar forecast for Hailin, 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 Hailin
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Places near Hailin
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A free, live card for Hailin: 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.