Chagang · North Korea · 40.37° N · 126.31° E
Solar position in Songwŏn-ŭp
Sun position, daylight and the best solar panel angle for Songwŏn-ŭp — computed for 40.37° N, 126.31° E, 371 m above sea level.
The sun right now
Sun in Songwŏn-ŭp today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:24 | sun 18° below horizon |
| Nautical dawn | 05:56 | 12° below |
| Civil dawn | 06:28 | 6° below |
| Sunrise | 06:56 | 105° ESE |
| Golden hour ends | 07:33 | sun 6° up |
| Solar noon | 12:18 | 37.6° high |
| Golden hour starts | 17:03 | sun 6° up |
| Sunset | 17:41 | 255° WSW |
| Civil dusk | 18:09 | 6° below |
| Nautical dusk | 18:40 | 12° below |
| Astronomical dusk | 19:12 | 18° below |
| Day length | 10 h 45 min | |
Sun path diagram for Songwŏn-ŭp
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 73.1° at solar noon in Songwŏn-ŭp; on the December solstice only 26.2°. Sunrise swings from 58° ENE in June to 121° ESE in December — a 63° 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 | 07:52 | 12:46 | 17:39 | 9 h 46 min | 29.7° |
| February | 07:20 | 12:48 | 18:16 | 10 h 56 min | 39.1° |
| March | 06:37 | 12:42 | 18:47 | 12 h 10 min | 49.9° |
| April | 05:48 | 12:33 | 19:19 | 13 h 31 min | 61.5° |
| May | 05:13 | 12:31 | 19:49 | 14 h 35 min | 69.8° |
| June | 05:04 | 12:36 | 20:08 | 15 h 03 min | 73.1° |
| July | 05:21 | 12:41 | 19:59 | 14 h 38 min | 70.1° |
| August | 05:51 | 12:37 | 19:24 | 13 h 33 min | 61.8° |
| September | 06:20 | 12:27 | 18:34 | 12 h 13 min | 50.4° |
| October | 06:51 | 12:19 | 17:46 | 10 h 55 min | 39.0° |
| November | 07:27 | 12:20 | 17:13 | 9 h 46 min | 29.8° |
| December | 07:53 | 12:32 | 17:11 | 9 h 17 min | 26.2° |
A year of daylight in Songwŏn-ŭp
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 Songwŏn-ŭp
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
41°collects the most energy over a year: 1463 kWh per kWp.
37°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° | 1179 | 81% | 3.55 | 2.6× |
| 15° | 1347 | 92% | 3.59 | 1.8× |
| 30° | 1443 | 99% | 3.45 | 1.5× |
| 37° off-grid best | 1460 | 100% | 3.33 | 1.4× |
| 40° = latitude | 1463 | 100% | 3.27 | 1.5× |
| 41° year-round best | 1463 | 100% | 3.24 | 1.5× |
| 45° | 1459 | 100% | 3.14 | 1.5× |
| 60° | 1397 | 95% | 2.69 | 1.7× |
| 70° | 1313 | 90% | 2.32 | 2.0× |
| 90° | 1061 | 73% | 1.50 | 3.0× |
A fixed array in Songwŏn-ŭp produces the most over a year at 41°. The design month for an off-grid system is July: at 37° it makes 3.33 kWh per kWp a day, 3% more than at 41°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Songwŏn-ŭp at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 41° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 41° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.47 | 4.97 | 4.69 | 4.22 | -11.9 °C |
| February snow | 3.21 | 4.99 | 4.65 | 4.46 | -8.4 °C |
| March snow | 4.26 | 4.89 | 4.45 | 4.80 | -1.9 °C |
| April | 4.88 | 3.97 | 3.50 | 4.43 | 5.7 °C |
| May | 5.48 | 3.58 | 3.05 | 4.29 | 12.8 °C |
| June | 5.16 | 3.12 | 2.60 | 3.76 | 17.9 °C |
| July | 4.40 | 2.82 | 2.32 | 3.24 | 20.8 °C |
| August | 4.44 | 3.27 | 2.71 | 3.56 | 20.5 °C |
| September | 4.31 | 4.16 | 3.54 | 4.16 | 15.3 °C |
| October | 3.36 | 4.46 | 3.92 | 4.10 | 7.8 °C |
| November snow | 2.26 | 4.04 | 3.67 | 3.44 | -1.0 °C |
| December snow | 2.04 | 4.42 | 4.14 | 3.66 | -9.8 °C |
| Year | 3.86 avg | 4.05 avg | 1313 kWh | 1463 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 360 Wp at 41°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Songwŏn-ŭp
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.
5.1 mrow pitch at 70°
4.6 mrow pitch at 41°
How Songwŏn-ŭp compares in North Korea
Against the other 96 places in North Korea with climate data, for a fixed array at its best angle.
53rdof 97 places in North Korea for sunshine, shared: 3.86 peak sun hours a day on flat ground.
+3%solar energy a year compared with the average place in North Korea: 1,463 against 1,424 kWh per kWp.
+9 mindaylight on the longest day, compared with Pyongyang: 15 h 03 min against 14 h 55 min.
41°best year-round tilt here; across North Korea it runs from 34° in Ongjin to 44° in Namyang-nodongjagu.
Of the 97 places in North Korea, Sinp’o and one other place get the most sun (3.91 peak sun hours a day) and Ŏrang and one other place the least (3.70); Songwŏn-ŭp ranks joint 53rd. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.32 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 17 min, −8 min compared with Pyongyang.
Solar forecast for Songwŏn-ŭp, 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 Songwŏn-ŭp
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Places near Songwŏn-ŭp
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A free, live card for Songwŏn-ŭp: 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.