Solarposition.org

South Hwanghae · North Korea · 37.97° N · 125.94° E

Solar position in Ch’ŏngdan-ŭp

Sun position, daylight and the best solar panel angle for Ch’ŏngdan-ŭp — computed for 37.97° N, 125.94° E, 21 m above sea level.

Sunrise today06:54105° ESE
Sunset today17:46255° WSW
Best panel angle36°year-round, facing south
Off-grid angle39°best for the darkest month

The sun right now

Azimuth180.0°
Elevation40.0°
At solar noon, 12:20Open on the sun map

Sun in Ch’ŏngdan-ŭp today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn05:26sun 18° below horizon
Nautical dawn05:5612° below
Civil dawn06:276° below
Sunrise06:54105° ESE
Golden hour ends07:30sun 6° up
Solar noon12:2040.0° high
Golden hour starts17:09sun 6° up
Sunset17:46255° WSW
Civil dusk18:126° below
Nautical dusk18:4312° below
Astronomical dusk19:1418° below
Day length10 h 52 min

Sun path diagram for Ch’ŏngdan-ŭp

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice678910111213141516171819EquinoxDecember solstice891011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 75.5° at solar noon in Ch’ŏngdan-ŭp; on the December solstice only 28.6°. 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:4812:4717:469 h 58 min32.1°
February07:1912:5018:2011 h 02 min41.5°
March06:3812:4318:4812 h 10 min52.3°
April05:5312:3519:1713 h 24 min63.9°
May05:2112:3219:4414 h 23 min72.2°
June05:1312:3720:0214 h 48 min75.5°
July05:2912:4219:5414 h 25 min72.5°
August05:5612:3919:2213 h 26 min64.2°
September06:2212:2918:3512 h 13 min52.8°
October06:5012:2017:5111 h 01 min41.4°
November07:2212:2117:209 h 58 min32.2°
December07:4812:3417:209 h 32 min28.6°

A year of daylight in Ch’ŏngdan-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.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Ch’ŏngdan-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: 1374 kWh per kWp.

39°gives the most in the darkest month — the one an off-grid system is sized for.

40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 36°Best worst-month 39°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°116785%1.692.7×
15°130495%2.332.0×
30°1369100%2.841.6×
36° year-round best1374100%2.991.5×
38° = latitude1373100%3.041.5×
39° off-grid best1372100%3.061.5×
45°135999%3.181.6×
60°127593%3.341.7×
70°118086%3.331.9×
90°91667%3.072.6×

A fixed array in Ch’ŏngdan-ŭp produces the most over a year at 36°. The design month for an off-grid system is December: at 39° it makes 3.06 kWh per kWp a day, 2% more than at 36°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Ch’ŏngdan-ŭp at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 36° (year-round best).

012345January: 3.74 (70°)3.7JanFebruary: 3.95 (70°)3.9FebMarch: 4.00 (70°)4.0MarApril: 3.42 (70°)3.4AprMay: 2.94 (70°)2.9MayJune: 2.50 (70°)2.5JunJuly: 2.12 (70°)2.1JulAugust: 2.59 (70°)2.6AugSeptember: 3.23 (70°)3.2SepOctober: 3.75 (70°)3.8OctNovember: 3.26 (70°)3.3NovDecember: 3.33 (70°)3.3Dec36°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 36°Mean temp.
January snow2.344.103.743.34-3.0 °C
February snow3.154.353.953.91-1.0 °C
March4.304.484.004.553.2 °C
April5.033.933.424.509.0 °C
May5.553.482.944.3715.0 °C
June5.183.032.503.8420.1 °C
July4.202.622.123.1223.2 °C
August4.473.192.593.5624.3 °C
September4.243.873.233.9020.3 °C
October3.574.383.753.9814.2 °C
November2.403.713.263.146.8 °C
December snow2.043.683.332.99-0.5 °C
Year3.88 avg3.73 avg1180 kWh1374 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 Ch’ŏngdan-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°

Row spacing calculator

How Ch’ŏngdan-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: 1,374 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); Ch’ŏngdan-ŭp ranks joint 22nd. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.13 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 32 min, +6 min compared with Pyongyang.

The sunniest places in North Korea

Solar forecast for Ch’ŏngdan-ŭp, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Ch’ŏngdan-ŭp

What is the best solar panel angle in Ch’ŏngdan-ŭp?
For a fixed array facing south, the best year-round tilt in Ch’ŏngdan-ŭp is 36°, worth about 1374 kWh per kWp a year. An off-grid system that has to get through December does better at about 39°.
What time is sunrise and sunset in Ch’ŏngdan-ŭp today?
On 25 October 2026 the sun rises at 06:54 and sets at 17:46 local time (UTC+9), giving 10 h 52 min of daylight. Solar noon is at 12:20.
How many peak sun hours does Ch’ŏngdan-ŭp get?
On a flat surface 3.9 hours a day averaged over the year, from 2.0 in December to 5.5 in May. Panels tilted at 70° receive 2.6 sun hours a day in July.
How high does the sun get in Ch’ŏngdan-ŭp?
At solar noon the sun stands 75.5° above the horizon on the June solstice and 28.6° on the December solstice.
Is Ch’ŏngdan-ŭp a good place for solar panels?
With 3.9 peak sun hours a day on flat ground, Ch’ŏngdan-ŭp ranks joint 22nd of 97 places in North Korea for sunshine. A 1 kWp array at the best angle (36°) makes about 1,374 kWh a year here, 3% less than the average place in North Korea.

Places near Ch’ŏngdan-ŭp

All places in North Korea

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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.