Kangwŏn-do · North Korea · 38.71° N · 127.60° E
Solar position in Hoeyang
Sun position, daylight and the best solar panel angle for Hoeyang — computed for 38.71° N, 127.60° E, 354 m above sea level.
The sun right now
Sun in Hoeyang today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:19 | sun 18° below horizon |
| Nautical dawn | 05:50 | 12° below |
| Civil dawn | 06:21 | 6° below |
| Sunrise | 06:48 | 105° ESE |
| Golden hour ends | 07:25 | sun 6° up |
| Solar noon | 12:13 | 39.2° high |
| Golden hour starts | 17:01 | sun 6° up |
| Sunset | 17:38 | 255° WSW |
| Civil dusk | 18:05 | 6° below |
| Nautical dusk | 18:36 | 12° below |
| Astronomical dusk | 19:07 | 18° below |
| Day length | 10 h 50 min | |
Sun path diagram for Hoeyang
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 74.7° at solar noon in Hoeyang; on the December solstice only 27.9°. 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 | 07:43 | 12:40 | 17:38 | 9 h 55 min | 31.4° |
| February | 07:13 | 12:43 | 18:13 | 11 h 00 min | 40.7° |
| March | 06:32 | 12:37 | 18:42 | 12 h 10 min | 51.5° |
| April | 05:45 | 12:28 | 19:11 | 13 h 26 min | 63.1° |
| May | 05:13 | 12:26 | 19:39 | 14 h 27 min | 71.5° |
| June | 05:04 | 12:31 | 19:57 | 14 h 53 min | 74.7° |
| July | 05:21 | 12:35 | 19:50 | 14 h 29 min | 71.8° |
| August | 05:48 | 12:32 | 19:16 | 13 h 28 min | 63.4° |
| September | 06:16 | 12:22 | 18:28 | 12 h 13 min | 52.0° |
| October | 06:44 | 12:14 | 17:43 | 10 h 59 min | 40.6° |
| November | 07:17 | 12:15 | 17:12 | 9 h 55 min | 31.4° |
| December | 07:43 | 12:27 | 17:11 | 9 h 27 min | 27.9° |
A year of daylight in Hoeyang
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 Hoeyang
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: 1384 kWh per kWp.
29°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° | 1146 | 83% | 3.25 | 2.6× |
| 15° | 1295 | 94% | 3.28 | 1.8× |
| 29° off-grid best | 1370 | 99% | 3.15 | 1.4× |
| 30° | 1373 | 99% | 3.14 | 1.4× |
| 38° year-round best | 1384 | 100% | 3.00 | 1.5× |
| 39° = latitude | 1383 | 100% | 2.98 | 1.5× |
| 45° | 1375 | 99% | 2.85 | 1.6× |
| 60° | 1303 | 94% | 2.43 | 1.8× |
| 70° | 1217 | 88% | 2.09 | 2.1× |
| 90° | 965 | 70% | 1.35 | 2.9× |
A fixed array in Hoeyang produces the most over a year at 38°. The design month for an off-grid system is July: at 29° it makes 3.15 kWh per kWp a day, 5% more than at 38°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in Hoeyang at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 38° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 38° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.34 | 4.36 | 4.03 | 3.59 | -5.8 °C |
| February snow | 3.16 | 4.73 | 4.33 | 4.13 | -3.2 °C |
| March | 4.16 | 4.38 | 3.92 | 4.45 | 2.0 °C |
| April | 4.94 | 3.91 | 3.41 | 4.42 | 8.1 °C |
| May | 5.48 | 3.48 | 2.95 | 4.29 | 14.6 °C |
| June | 5.16 | 3.05 | 2.52 | 3.79 | 19.5 °C |
| July | 4.07 | 2.57 | 2.09 | 3.00 | 22.4 °C |
| August | 4.18 | 3.01 | 2.46 | 3.31 | 22.9 °C |
| September | 4.00 | 3.67 | 3.08 | 3.70 | 18.1 °C |
| October | 3.45 | 4.34 | 3.75 | 3.96 | 11.8 °C |
| November | 2.40 | 3.96 | 3.52 | 3.37 | 4.1 °C |
| December snow | 2.12 | 4.38 | 4.01 | 3.49 | -3.6 °C |
| Year | 3.79 avg | 3.81 avg | 1217 kWh | 1384 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 570 Wp of panels at 70°, versus 390 Wp at 38°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Hoeyang
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°
How Hoeyang compares in North Korea
Against the other 96 places in North Korea with climate data, for a fixed array at its best angle.
81stof 97 places in North Korea for sunshine, shared: 3.79 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in North Korea: 1,384 against 1,424 kWh per kWp.
−2 mindaylight on the longest day, compared with Pyongyang: 14 h 53 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); Hoeyang ranks joint 81st. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.09 kWh a day here, against 2.28 kWh on average in North Korea. The shortest day lasts 9 h 27 min, +2 min compared with Pyongyang.
Solar forecast for Hoeyang, 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 Hoeyang
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Places near Hoeyang
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A free, live card for Hoeyang: 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.