North Hamgyong · North Korea · 42.52° N · 130.40° E
Solar position in Aoji-ri
Sun position, daylight and the best solar panel angle for Aoji-ri — computed for 42.52° N, 130.40° E, 30 m above sea level.
The sun right now
Sun in Aoji-ri today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:08 | sun 18° below horizon |
| Nautical dawn | 05:41 | 12° below |
| Civil dawn | 06:13 | 6° below |
| Sunrise | 06:42 | 106° ESE |
| Golden hour ends | 07:22 | sun 6° up |
| Solar noon | 12:02 | 35.4° high |
| Golden hour starts | 16:42 | sun 6° up |
| Sunset | 17:21 | 254° WSW |
| Civil dusk | 17:50 | 6° below |
| Nautical dusk | 18:23 | 12° below |
| Astronomical dusk | 18:55 | 18° below |
| Day length | 10 h 39 min | |
Sun path diagram for Aoji-ri
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 70.9° at solar noon in Aoji-ri; on the December solstice only 24.1°. Sunrise swings from 56° ENE in June to 122° ESE in December — a 65° 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 | 07:42 | 12:29 | 17:17 | 9 h 35 min | 27.6° |
| February | 07:07 | 12:32 | 17:57 | 10 h 50 min | 36.9° |
| March | 06:20 | 12:25 | 18:31 | 12 h 10 min | 47.7° |
| April | 05:28 | 12:17 | 19:06 | 13 h 38 min | 59.3° |
| May | 04:51 | 12:15 | 19:39 | 14 h 48 min | 67.7° |
| June | 04:41 | 12:20 | 19:59 | 15 h 18 min | 70.9° |
| July | 04:59 | 12:24 | 19:49 | 14 h 51 min | 68.0° |
| August | 05:31 | 12:21 | 19:11 | 13 h 40 min | 59.6° |
| September | 06:04 | 12:11 | 18:18 | 12 h 14 min | 48.2° |
| October | 06:37 | 12:02 | 17:27 | 10 h 50 min | 36.8° |
| November | 07:16 | 12:04 | 16:51 | 9 h 35 min | 27.6° |
| December | 07:44 | 12:16 | 16:48 | 9 h 03 min | 24.1° |
A year of daylight in Aoji-ri
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 Aoji-ri
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
43°collects the most energy over a year: 1443 kWh per kWp.
39°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° | 1129 | 78% | 3.57 | 2.7× |
| 15° | 1307 | 91% | 3.64 | 1.9× |
| 30° | 1414 | 98% | 3.52 | 1.5× |
| 39° off-grid best | 1440 | 100% | 3.36 | 1.4× |
| 43° year-round best = latitude | 1443 | 100% | 3.27 | 1.5× |
| 45° | 1442 | 100% | 3.22 | 1.5× |
| 60° | 1390 | 96% | 2.76 | 1.7× |
| 70° | 1313 | 91% | 2.39 | 1.9× |
| 90° | 1072 | 74% | 1.55 | 2.7× |
A fixed array in Aoji-ri produces the most over a year at 43°. The design month for an off-grid system is July: at 39° it makes 3.36 kWh per kWp a day, 3% more than at 43°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Aoji-ri at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 43° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 43° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.13 | 4.49 | 4.23 | 3.81 | -11.1 °C |
| February snow | 3.00 | 4.91 | 4.57 | 4.37 | -8.0 °C |
| March snow | 4.11 | 4.95 | 4.49 | 4.78 | -1.5 °C |
| April | 4.87 | 4.12 | 3.63 | 4.48 | 5.9 °C |
| May | 5.02 | 3.43 | 2.93 | 3.96 | 12.2 °C |
| June | 4.85 | 3.05 | 2.54 | 3.56 | 17.1 °C |
| July | 4.43 | 2.90 | 2.39 | 3.27 | 20.5 °C |
| August | 4.47 | 3.42 | 2.82 | 3.62 | 21.2 °C |
| September | 4.28 | 4.33 | 3.68 | 4.24 | 16.1 °C |
| October | 3.32 | 4.69 | 4.11 | 4.24 | 8.5 °C |
| November snow | 2.24 | 4.33 | 3.93 | 3.66 | -0.7 °C |
| December snow | 1.83 | 4.21 | 3.94 | 3.49 | -9.0 °C |
| Year | 3.71 avg | 4.06 avg | 1313 kWh | 1443 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 490 Wp of panels at 70°, versus 360 Wp at 43°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Aoji-ri
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.
5.6 mrow pitch at 70°
5.0 mrow pitch at 43°
How Aoji-ri compares in North Korea
Against the other 96 places in North Korea with climate data, for a fixed array at its best angle.
94thof 97 places in North Korea for sunshine, shared: 3.71 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in North Korea: 1,442 against 1,424 kWh per kWp.
+24 mindaylight on the longest day, compared with Pyongyang: 15 h 18 min against 14 h 55 min.
43°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); Aoji-ri ranks joint 94th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.39 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 03 min, −22 min compared with Pyongyang.
Solar forecast for Aoji-ri, 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 Aoji-ri
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A free, live card for Aoji-ri: 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.