Solarposition.org

South Pyongan · North Korea · 39.40° N · 125.51° E

Solar position in Ch’ŏsal-li

Sun position, daylight and the best solar panel angle for Ch’ŏsal-li — computed for 39.40° N, 125.51° E, 17 m above sea level.

Sunrise today06:57105° ESE
Sunset today17:45255° WSW
Best panel angle38°year-round, facing south
Off-grid angle36°best for the darkest month

The sun right now

Azimuth180.0°
Elevation38.5°
At solar noon, 12:21Open on the sun map

Sun in Ch’ŏsal-li today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn05:27sun 18° below horizon
Nautical dawn05:5912° below
Civil dawn06:306° below
Sunrise06:57105° ESE
Golden hour ends07:35sun 6° up
Solar noon12:2138.5° high
Golden hour starts17:08sun 6° up
Sunset17:45255° WSW
Civil dusk18:136° below
Nautical dusk18:4412° below
Astronomical dusk19:1518° below
Day length10 h 48 min

Sun path diagram for Ch’ŏsal-li

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 solstice91011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 74.0° at solar noon in Ch’ŏsal-li; on the December solstice only 27.2°. Sunrise swings from 58° ENE in June to 120° ESE in December — a 62° 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
January07:5312:4917:449 h 51 min30.7°
February07:2212:5118:2010 h 58 min40.0°
March06:4012:4518:5012 h 10 min50.8°
April05:5212:3619:2113 h 28 min62.4°
May05:1912:3419:4914 h 30 min70.8°
June05:1112:3920:0814 h 57 min74.0°
July05:2712:4420:0014 h 33 min71.1°
August05:5512:4119:2513 h 30 min62.7°
September06:2412:3018:3712 h 13 min51.3°
October06:5312:2217:5110 h 58 min39.9°
November07:2712:2317:199 h 51 min30.7°
December07:5412:3517:179 h 23 min27.2°

A year of daylight in Ch’ŏsal-li

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’ŏsal-li

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

38°collects the most energy over a year: 1425 kWh per kWp.

36°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 38°Best worst-month 36°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJuly kWh/kWp/dayBest ÷ worst month
0°117783%3.442.8×
15°133193%3.482.0×
30°141399%3.341.5×
36° off-grid best1424100%3.241.5×
38° year-round best1425100%3.201.5×
39° = latitude1425100%3.171.5×
45°141799%3.031.6×
60°134294%2.581.7×
70°125288%2.221.9×
90°99069%1.432.8×

A fixed array in Ch’ŏsal-li produces the most over a year at 38°. The design month for an off-grid system is July: at 36° it makes 3.24 kWh per kWp a day, 1% more than at 38°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Ch’ŏsal-li at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 38° (year-round best).

012345January: 4.01 (70°)4.0JanFebruary: 4.31 (70°)4.3FebMarch: 4.21 (70°)4.2MarApril: 3.56 (70°)3.6AprMay: 3.05 (70°)3.0MayJune: 2.57 (70°)2.6JunJuly: 2.22 (70°)2.2JulAugust: 2.68 (70°)2.7AugSeptember: 3.46 (70°)3.5SepOctober: 3.83 (70°)3.8OctNovember: 3.50 (70°)3.5NovDecember: 3.81 (70°)3.8Dec38°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 38°Mean temp.
January snow2.314.334.013.57-6.6 °C
February snow3.084.704.314.09-3.5 °C
March4.324.704.214.732.0 °C
April5.094.093.564.608.7 °C
May5.643.613.054.4315.6 °C
June5.283.122.573.8720.9 °C
July4.322.742.223.2023.6 °C
August4.503.282.683.6023.8 °C
September4.384.133.464.1319.1 °C
October3.474.443.834.0212.2 °C
November2.363.933.503.343.8 °C
December snow2.024.153.813.31-4.3 °C
Year3.90 avg3.93 avg1252 kWh1425 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 530 Wp of panels at 70°, versus 370 Wp at 38°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Ch’ŏsal-li

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.

4.9 mrow pitch at 70°

4.3 mrow pitch at 38°

Row spacing calculator

How Ch’ŏsal-li compares in North Korea

Against the other 96 places in North Korea with climate data, for a fixed array at its best angle.

3rdof 97 places in North Korea for sunshine, shared: 3.90 peak sun hours a day on flat ground.

±0%solar energy a year compared with the average place in North Korea: 1,425 against 1,424 kWh per kWp.

+2 mindaylight on the longest day, compared with Pyongyang: 14 h 57 min against 14 h 55 min.

38°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’ŏsal-li ranks joint 3rd. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.22 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 23 min, −2 min compared with Pyongyang.

The sunniest places in North Korea

Solar forecast for Ch’ŏsal-li, 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’ŏsal-li

What is the best solar panel angle in Ch’ŏsal-li?
For a fixed array facing south, the best year-round tilt in Ch’ŏsal-li is 38°, worth about 1425 kWh per kWp a year. An off-grid system that has to get through July does better at about 36°.
What time is sunrise and sunset in Ch’ŏsal-li today?
On 25 October 2026 the sun rises at 06:57 and sets at 17:45 local time (UTC+9), giving 10 h 48 min of daylight. Solar noon is at 12:21.
How many peak sun hours does Ch’ŏsal-li get?
On a flat surface 3.9 hours a day averaged over the year, from 2.0 in December to 5.6 in May. Panels tilted at 70° receive 2.7 sun hours a day in July.
How high does the sun get in Ch’ŏsal-li?
At solar noon the sun stands 74.0° above the horizon on the June solstice and 27.2° on the December solstice.
Is Ch’ŏsal-li a good place for solar panels?
With 3.9 peak sun hours a day on flat ground, Ch’ŏsal-li ranks joint 3rd of 97 places in North Korea for sunshine. A 1 kWp array at the best angle (38°) makes about 1,425 kWh a year here, as much as the average place in North Korea.

Places near Ch’ŏsal-li

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.