Solarposition.org

Kangwŏn-do · North Korea · 38.95° N · 127.89° E

Solar position in T’ongch’ŏn-ŭp

Sun position, daylight and the best solar panel angle for T’ongch’ŏn-ŭp — computed for 38.95° N, 127.89° E, 6 m above sea level.

Sunrise today06:47105° ESE
Sunset today17:36255° WSW
Best panel angle38°year-round, facing south
Off-grid angle34°best for the darkest month

The sun right now

Azimuth180.0°
Elevation39.0°
At solar noon, 12:12Open on the sun map

Sun in T’ongch’ŏn-ŭp today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn05:18sun 18° below horizon
Nautical dawn05:4912° below
Civil dawn06:206° below
Sunrise06:47105° ESE
Golden hour ends07:24sun 6° up
Solar noon12:1239.0° high
Golden hour starts16:59sun 6° up
Sunset17:36255° WSW
Civil dusk18:046° below
Nautical dusk18:3512° below
Astronomical dusk19:0618° below
Day length10 h 49 min

Sun path diagram for T’ongch’ŏn-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 74.5° at solar noon in T’ongch’ŏn-ŭp; on the December solstice only 27.6°. 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
January07:4312:3917:369 h 53 min31.2°
February07:1212:4218:1110 h 59 min40.5°
March06:3112:3518:4012 h 10 min51.3°
April05:4412:2719:1013 h 27 min62.9°
May05:1112:2519:3914 h 28 min71.2°
June05:0312:3019:5714 h 54 min74.5°
July05:1912:3419:4914 h 30 min71.5°
August05:4612:3119:1513 h 29 min63.2°
September06:1412:2118:2712 h 13 min51.8°
October06:4312:1217:4210 h 59 min40.4°
November07:1712:1417:109 h 53 min31.2°
December07:4312:2617:099 h 26 min27.6°

A year of daylight in T’ongch’ŏn-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 T’ongch’ŏn-ŭp

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: 1386 kWh per kWp.

34°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 34°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJuly kWh/kWp/dayBest ÷ worst month
0°114983%3.412.6×
15°129894%3.441.8×
30°137699%3.291.5×
34° off-grid best1384100%3.231.4×
38° year-round best1386100%3.151.4×
39° = latitude1386100%3.131.4×
45°137799%2.991.5×
60°130194%2.541.7×
70°121187%2.181.9×
90°95269%1.392.8×

A fixed array in T’ongch’ŏn-ŭp produces the most over a year at 38°. The design month for an off-grid system is July: at 34° it makes 3.23 kWh per kWp a day, 2% more than at 38°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in T’ongch’ŏn-ŭp at 70°

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

012345January: 4.05 (70°)4.1JanFebruary: 4.12 (70°)4.1FebMarch: 3.95 (70°)4.0MarApril: 3.45 (70°)3.5AprMay: 2.96 (70°)3.0MayJune: 2.53 (70°)2.5JunJuly: 2.18 (70°)2.2JulAugust: 2.53 (70°)2.5AugSeptember: 3.10 (70°)3.1SepOctober: 3.69 (70°)3.7OctNovember: 3.48 (70°)3.5NovDecember: 3.83 (70°)3.8Dec38°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 38°Mean temp.
January snow2.344.424.053.60-3.5 °C
February snow3.164.534.124.07-1.5 °C
March4.184.433.954.473.0 °C
April4.983.963.454.478.6 °C
May5.453.492.964.2814.6 °C
June5.163.062.533.8019.4 °C
July4.262.682.183.1522.4 °C
August4.273.092.533.4023.3 °C
September4.013.713.103.7219.1 °C
October3.414.303.693.9013.3 °C
November2.383.933.483.325.9 °C
December snow2.114.213.833.41-1.3 °C
Year3.81 avg3.81 avg1211 kWh1386 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 540 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 T’ongch’ŏn-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.

4.8 mrow pitch at 70°

4.3 mrow pitch at 38°

Row spacing calculator

How T’ongch’ŏn-ŭp compares in North Korea

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

72ndof 97 places in North Korea for sunshine, shared: 3.81 peak sun hours a day on flat ground.

−3%solar energy a year compared with the average place in North Korea: 1,386 against 1,424 kWh per kWp.

−1 mindaylight on the longest day, compared with Pyongyang: 14 h 54 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); T’ongch’ŏn-ŭp ranks joint 72nd. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.18 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 26 min, ±0 min compared with Pyongyang.

The sunniest places in North Korea

Solar forecast for T’ongch’ŏn-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 T’ongch’ŏn-ŭp

What is the best solar panel angle in T’ongch’ŏn-ŭp?
For a fixed array facing south, the best year-round tilt in T’ongch’ŏn-ŭp is 38°, worth about 1386 kWh per kWp a year. An off-grid system that has to get through July does better at about 34°.
What time is sunrise and sunset in T’ongch’ŏn-ŭp today?
On 25 October 2026 the sun rises at 06:47 and sets at 17:36 local time (UTC+9), giving 10 h 49 min of daylight. Solar noon is at 12:12.
How many peak sun hours does T’ongch’ŏn-ŭp get?
On a flat surface 3.8 hours a day averaged over the year, from 2.1 in December to 5.4 in May. Panels tilted at 70° receive 2.7 sun hours a day in July.
How high does the sun get in T’ongch’ŏn-ŭp?
At solar noon the sun stands 74.5° above the horizon on the June solstice and 27.6° on the December solstice.
Is T’ongch’ŏn-ŭp a good place for solar panels?
With 3.8 peak sun hours a day on flat ground, T’ongch’ŏn-ŭp ranks joint 72nd of 97 places in North Korea for sunshine. A 1 kWp array at the best angle (38°) makes about 1,386 kWh a year here, 3% less than the average place in North Korea.

Places near T’ongch’ŏn-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.