South Hamgyong · North Korea · 40.02° N · 128.16° E
Solar position in Yuktae-dong
Sun position, daylight and the best solar panel angle for Yuktae-dong — computed for 40.02° N, 128.16° E, 1 m above sea level.
The sun right now
Sun in Yuktae-dong today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:17 | sun 18° below horizon |
| Nautical dawn | 05:48 | 12° below |
| Civil dawn | 06:20 | 6° below |
| Sunrise | 06:48 | 105° ESE |
| Golden hour ends | 07:25 | sun 6° up |
| Solar noon | 12:11 | 37.9° high |
| Golden hour starts | 16:56 | sun 6° up |
| Sunset | 17:34 | 255° WSW |
| Civil dusk | 18:01 | 6° below |
| Nautical dusk | 18:33 | 12° below |
| Astronomical dusk | 19:05 | 18° below |
| Day length | 10 h 46 min | |
Sun path diagram for Yuktae-dong
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 73.4° at solar noon in Yuktae-dong; on the December solstice only 26.6°. Sunrise swings from 58° ENE in June to 120° 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 | 07:44 | 12:38 | 17:32 | 9 h 48 min | 30.1° |
| February | 07:12 | 12:41 | 18:09 | 10 h 57 min | 39.4° |
| March | 06:29 | 12:34 | 18:39 | 12 h 10 min | 50.2° |
| April | 05:41 | 12:26 | 19:11 | 13 h 30 min | 61.8° |
| May | 05:07 | 12:23 | 19:40 | 14 h 34 min | 70.2° |
| June | 04:58 | 12:29 | 19:59 | 15 h 01 min | 73.4° |
| July | 05:15 | 12:33 | 19:51 | 14 h 36 min | 70.5° |
| August | 05:44 | 12:30 | 19:16 | 13 h 32 min | 62.1° |
| September | 06:13 | 12:20 | 18:26 | 12 h 13 min | 50.7° |
| October | 06:43 | 12:11 | 17:39 | 10 h 56 min | 39.3° |
| November | 07:18 | 12:12 | 17:07 | 9 h 48 min | 30.1° |
| December | 07:45 | 12:25 | 17:05 | 9 h 20 min | 26.6° |
A year of daylight in Yuktae-dong
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 Yuktae-dong
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: 1452 kWh per kWp.
38°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° | 1183 | 81% | 3.69 | 2.7× |
| 15° | 1347 | 93% | 3.73 | 1.9× |
| 30° | 1437 | 99% | 3.59 | 1.5× |
| 38° off-grid best | 1452 | 100% | 3.43 | 1.4× |
| 39° year-round best | 1452 | 100% | 3.41 | 1.4× |
| 40° = latitude | 1452 | 100% | 3.39 | 1.4× |
| 45° | 1447 | 100% | 3.26 | 1.4× |
| 60° | 1377 | 95% | 2.77 | 1.7× |
| 70° | 1288 | 89% | 2.38 | 1.9× |
| 90° | 1027 | 71% | 1.52 | 2.8× |
A fixed array in Yuktae-dong produces the most over a year at 39°. The design month for an off-grid system is July: at 38° it makes 3.43 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Yuktae-dong 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 | 2.35 | 4.64 | 4.27 | 3.79 | -4.6 °C |
| February snow | 3.22 | 5.02 | 4.59 | 4.35 | -2.9 °C |
| March | 4.32 | 4.70 | 4.22 | 4.72 | 1.5 °C |
| April | 5.14 | 4.17 | 3.65 | 4.66 | 7.4 °C |
| May | 5.50 | 3.59 | 3.06 | 4.35 | 13.3 °C |
| June | 5.19 | 3.13 | 2.60 | 3.84 | 18.0 °C |
| July | 4.58 | 2.90 | 2.38 | 3.41 | 21.2 °C |
| August | 4.50 | 3.30 | 2.72 | 3.62 | 22.1 °C |
| September | 4.18 | 3.99 | 3.35 | 3.97 | 18.0 °C |
| October | 3.44 | 4.50 | 3.88 | 4.06 | 12.2 °C |
| November | 2.40 | 4.10 | 3.65 | 3.47 | 4.6 °C |
| December snow | 2.08 | 4.45 | 4.06 | 3.53 | -2.5 °C |
| Year | 3.91 avg | 4.03 avg | 1288 kWh | 1452 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 500 Wp of panels at 70°, versus 350 Wp at 39°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Yuktae-dong
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°
4.5 mrow pitch at 39°
How Yuktae-dong compares in North Korea
Against the other 96 places in North Korea with climate data, for a fixed array at its best angle.
1stof 97 places in North Korea for sunshine, shared: 3.91 peak sun hours a day on flat ground.
+2%solar energy a year compared with the average place in North Korea: 1,452 against 1,424 kWh per kWp.
+6 mindaylight on the longest day, compared with Pyongyang: 15 h 01 min against 14 h 55 min.
39°best year-round tilt here; across North Korea it runs from 34° in Ongjin to 44° in Namyang-nodongjagu.
Yuktae-dong shares the top spot for sunshine among the 97 places in North Korea (3.91 peak sun hours a day); the least sunny are Ŏrang and one other place with 3.70. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.38 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 20 min, −6 min compared with Pyongyang.
Solar forecast for Yuktae-dong, 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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Places near Yuktae-dong
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A free, live card for Yuktae-dong: 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.