North Hamgyong · North Korea · 42.23° N · 129.21° E
Solar position in Musan-ŭp
Sun position, daylight and the best solar panel angle for Musan-ŭp — computed for 42.23° N, 129.21° E, 478 m above sea level.
The sun right now
Sun in Musan-ŭp today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:13 | sun 18° below horizon |
| Nautical dawn | 05:45 | 12° below |
| Civil dawn | 06:18 | 6° below |
| Sunrise | 06:47 | 106° ESE |
| Golden hour ends | 07:26 | sun 6° up |
| Solar noon | 12:07 | 35.7° high |
| Golden hour starts | 16:47 | sun 6° up |
| Sunset | 17:26 | 254° WSW |
| Civil dusk | 17:55 | 6° below |
| Nautical dusk | 18:28 | 12° below |
| Astronomical dusk | 19:00 | 18° below |
| Day length | 10 h 40 min | |
Sun path diagram for Musan-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 71.2° at solar noon in Musan-ŭp; on the December solstice only 24.4°. Sunrise swings from 57° ENE in June to 122° ESE in December — a 65° 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 | 07:46 | 12:34 | 17:22 | 9 h 37 min | 27.9° |
| February | 07:11 | 12:37 | 18:02 | 10 h 51 min | 37.2° |
| March | 06:25 | 12:30 | 18:35 | 12 h 10 min | 48.0° |
| April | 05:33 | 12:22 | 19:10 | 13 h 37 min | 59.6° |
| May | 04:56 | 12:19 | 19:43 | 14 h 46 min | 68.0° |
| June | 04:46 | 12:24 | 20:03 | 15 h 16 min | 71.2° |
| July | 05:04 | 12:29 | 19:53 | 14 h 49 min | 68.3° |
| August | 05:36 | 12:26 | 19:15 | 13 h 39 min | 59.9° |
| September | 06:08 | 12:16 | 18:23 | 12 h 14 min | 48.5° |
| October | 06:42 | 12:07 | 17:32 | 10 h 50 min | 37.1° |
| November | 07:20 | 12:08 | 16:57 | 9 h 37 min | 27.9° |
| December | 07:48 | 12:21 | 16:53 | 9 h 05 min | 24.4° |
A year of daylight in Musan-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 Musan-ŭp
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: 1487 kWh per kWp.
41°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° | 1172 | 79% | 3.82 | 2.7× |
| 15° | 1350 | 91% | 3.88 | 1.8× |
| 30° | 1457 | 98% | 3.75 | 1.5× |
| 41° off-grid best | 1486 | 100% | 3.53 | 1.4× |
| 42° = latitude | 1487 | 100% | 3.51 | 1.4× |
| 43° year-round best | 1487 | 100% | 3.48 | 1.4× |
| 45° | 1486 | 100% | 3.43 | 1.5× |
| 60° | 1435 | 97% | 2.94 | 1.7× |
| 70° | 1359 | 91% | 2.54 | 1.9× |
| 90° | 1118 | 75% | 1.65 | 2.7× |
A fixed array in Musan-ŭp produces the most over a year at 43°. The design month for an off-grid system is July: at 41° it makes 3.53 kWh per kWp a day, 1% more than at 43°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Musan-ŭp 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 | 2.27 | 4.67 | 4.45 | 4.03 | -14.6 °C |
| February snow | 3.20 | 5.16 | 4.86 | 4.66 | -11.2 °C |
| March snow | 4.18 | 5.26 | 4.83 | 4.96 | -4.2 °C |
| April | 4.84 | 4.05 | 3.59 | 4.44 | 4.4 °C |
| May | 5.20 | 3.53 | 3.02 | 4.09 | 11.7 °C |
| June | 5.14 | 3.21 | 2.69 | 3.76 | 16.6 °C |
| July | 4.71 | 3.07 | 2.54 | 3.48 | 19.7 °C |
| August | 4.53 | 3.44 | 2.86 | 3.68 | 19.3 °C |
| September | 4.24 | 4.25 | 3.64 | 4.21 | 13.6 °C |
| October | 3.33 | 4.65 | 4.12 | 4.27 | 5.5 °C |
| November snow | 2.27 | 4.48 | 4.11 | 3.77 | -4.0 °C |
| December snow | 1.91 | 4.25 | 4.03 | 3.59 | -12.6 °C |
| Year | 3.82 avg | 4.16 avg | 1359 kWh | 1487 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 470 Wp of panels at 70°, versus 340 Wp at 43°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Musan-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.
5.5 mrow pitch at 70°
5.0 mrow pitch at 43°
How Musan-ŭp compares in North Korea
Against the other 96 places in North Korea with climate data, for a fixed array at its best angle.
70thof 97 places in North Korea for sunshine, shared: 3.82 peak sun hours a day on flat ground.
+4%solar energy a year compared with the average place in North Korea: 1,487 against 1,424 kWh per kWp.
+21 mindaylight on the longest day, compared with Pyongyang: 15 h 16 min against 14 h 55 min.
43°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); Musan-ŭp ranks joint 70th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.54 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 05 min, −20 min compared with Pyongyang.
Solar forecast for Musan-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 Musan-ŭp
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Places near Musan-ŭp
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A free, live card for Musan-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.