South Hwanghae · North Korea · 37.91° N · 126.16° E
Solar position in Yŏnan-ŭp
Sun position, daylight and the best solar panel angle for Yŏnan-ŭp — computed for 37.91° N, 126.16° E, 43 m above sea level.
The sun right now
Sun in Yŏnan-ŭp today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:25 | sun 18° below horizon |
| Nautical dawn | 05:55 | 12° below |
| Civil dawn | 06:26 | 6° below |
| Sunrise | 06:53 | 105° ESE |
| Golden hour ends | 07:29 | sun 6° up |
| Solar noon | 12:19 | 40.0° high |
| Golden hour starts | 17:08 | sun 6° up |
| Sunset | 17:45 | 255° WSW |
| Civil dusk | 18:12 | 6° below |
| Nautical dusk | 18:42 | 12° below |
| Astronomical dusk | 19:13 | 18° below |
| Day length | 10 h 52 min | |
Sun path diagram for Yŏnan-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 75.5° at solar noon in Yŏnan-ŭp; on the December solstice only 28.7°. Sunrise swings from 59° ENE in June to 120° ESE in December — a 61° 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 | 07:47 | 12:46 | 17:45 | 9 h 58 min | 32.2° |
| February | 07:18 | 12:49 | 18:20 | 11 h 02 min | 41.5° |
| March | 06:38 | 12:42 | 18:47 | 12 h 10 min | 52.3° |
| April | 05:52 | 12:34 | 19:16 | 13 h 24 min | 63.9° |
| May | 05:20 | 12:31 | 19:43 | 14 h 22 min | 72.3° |
| June | 05:13 | 12:37 | 20:00 | 14 h 48 min | 75.5° |
| July | 05:29 | 12:41 | 19:53 | 14 h 25 min | 72.6° |
| August | 05:55 | 12:38 | 19:21 | 13 h 26 min | 64.2° |
| September | 06:21 | 12:28 | 18:34 | 12 h 13 min | 52.8° |
| October | 06:49 | 12:19 | 17:50 | 11 h 01 min | 41.4° |
| November | 07:21 | 12:20 | 17:20 | 9 h 58 min | 32.2° |
| December | 07:47 | 12:33 | 17:19 | 9 h 32 min | 28.7° |
A year of daylight in Yŏnan-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 Yŏnan-ŭp
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
36°collects the most energy over a year: 1376 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 | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1167 | 85% | 1.72 | 2.7× |
| 15° | 1305 | 95% | 2.37 | 2.0× |
| 30° | 1371 | 100% | 2.89 | 1.6× |
| 36° year-round best | 1376 | 100% | 3.05 | 1.5× |
| 37° off-grid best | 1376 | 100% | 3.07 | 1.5× |
| 38° = latitude | 1375 | 100% | 3.10 | 1.5× |
| 45° | 1361 | 99% | 3.24 | 1.6× |
| 60° | 1277 | 93% | 3.40 | 1.7× |
| 70° | 1182 | 86% | 3.40 | 1.9× |
| 90° | 918 | 67% | 3.13 | 2.6× |
A fixed array in Yŏnan-ŭp produces the most over a year at 36°. The design month for an off-grid system is December: at 37° it makes 3.07 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Yŏnan-ŭp at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 36° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 36° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.37 | 4.16 | 3.80 | 3.39 | -3.2 °C |
| February snow | 3.17 | 4.37 | 3.97 | 3.93 | -1.2 °C |
| March | 4.28 | 4.46 | 3.98 | 4.54 | 3.2 °C |
| April | 5.01 | 3.92 | 3.40 | 4.48 | 9.0 °C |
| May | 5.54 | 3.47 | 2.93 | 4.36 | 15.0 °C |
| June | 5.20 | 3.03 | 2.50 | 3.85 | 20.1 °C |
| July | 4.18 | 2.61 | 2.11 | 3.10 | 23.3 °C |
| August | 4.46 | 3.17 | 2.58 | 3.54 | 24.3 °C |
| September | 4.22 | 3.84 | 3.20 | 3.88 | 20.2 °C |
| October | 3.57 | 4.38 | 3.75 | 3.98 | 14.0 °C |
| November | 2.41 | 3.72 | 3.28 | 3.16 | 6.7 °C |
| December snow | 2.07 | 3.74 | 3.40 | 3.05 | -0.8 °C |
| Year | 3.88 avg | 3.74 avg | 1182 kWh | 1376 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 560 Wp of panels at 70°, versus 390 Wp at 36°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Yŏnan-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.
4.6 mrow pitch at 70°
4.1 mrow pitch at 36°
How Yŏnan-ŭp compares in North Korea
Against the other 96 places in North Korea with climate data, for a fixed array at its best angle.
22ndof 97 places in North Korea for sunshine, shared: 3.88 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in North Korea: 1,376 against 1,424 kWh per kWp.
−7 mindaylight on the longest day, compared with Pyongyang: 14 h 48 min against 14 h 55 min.
36°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); Yŏnan-ŭp ranks joint 22nd. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.11 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 32 min, +7 min compared with Pyongyang.
Solar forecast for Yŏnan-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 Yŏnan-ŭp
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Places near Yŏnan-ŭp
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A free, live card for Yŏnan-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.