Nampo · North Korea · 38.74° N · 125.41° E
Solar position in Namp’o
Sun position, daylight and the best solar panel angle for Namp’o — computed for 38.74° N, 125.41° E, 9 m above sea level.
The sun right now
Sun in Namp’o today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:28 | sun 18° below horizon |
| Nautical dawn | 05:59 | 12° below |
| Civil dawn | 06:30 | 6° below |
| Sunrise | 06:57 | 105° ESE |
| Golden hour ends | 07:34 | sun 6° up |
| Solar noon | 12:22 | 39.2° high |
| Golden hour starts | 17:10 | sun 6° up |
| Sunset | 17:47 | 255° WSW |
| Civil dusk | 18:14 | 6° below |
| Nautical dusk | 18:45 | 12° below |
| Astronomical dusk | 19:16 | 18° below |
| Day length | 10 h 50 min | |
Sun path diagram for Namp’o
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 Namp’o; 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 | 07:52 | 12:49 | 17:46 | 9 h 54 min | 31.4° |
| February | 07:22 | 12:52 | 18:22 | 11 h 00 min | 40.7° |
| March | 06:41 | 12:45 | 18:50 | 12 h 10 min | 51.5° |
| April | 05:54 | 12:37 | 19:20 | 13 h 26 min | 63.1° |
| May | 05:21 | 12:34 | 19:48 | 14 h 27 min | 71.4° |
| June | 05:13 | 12:40 | 20:06 | 14 h 53 min | 74.7° |
| July | 05:30 | 12:44 | 19:59 | 14 h 29 min | 71.7° |
| August | 05:57 | 12:41 | 19:25 | 13 h 28 min | 63.4° |
| September | 06:24 | 12:31 | 18:37 | 12 h 13 min | 52.0° |
| October | 06:53 | 12:22 | 17:52 | 10 h 59 min | 40.6° |
| November | 07:26 | 12:23 | 17:21 | 9 h 55 min | 31.4° |
| December | 07:52 | 12:36 | 17:19 | 9 h 27 min | 27.9° |
A year of daylight in Namp’o
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 Namp’o
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
37°collects the most energy over a year: 1402 kWh per kWp.
37°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 | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1173 | 84% | 1.67 | 2.8× |
| 15° | 1319 | 94% | 2.36 | 2.0× |
| 30° | 1393 | 99% | 2.92 | 1.6× |
| 37° year-round best off-grid best | 1402 | 100% | 3.14 | 1.5× |
| 39° = latitude | 1401 | 100% | 3.19 | 1.5× |
| 45° | 1391 | 99% | 3.34 | 1.6× |
| 60° | 1313 | 94% | 3.56 | 1.8× |
| 70° | 1222 | 87% | 3.61 | 2.0× |
| 90° | 962 | 69% | 3.43 | 2.8× |
A fixed array in Namp’o produces the most over a year at 37°. The design month for an off-grid system is December: at 37° it makes 3.14 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Namp’o at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 37° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 37° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.31 | 4.20 | 3.87 | 3.44 | -5.0 °C |
| February snow | 3.11 | 4.66 | 4.25 | 4.04 | -2.4 °C |
| March | 4.34 | 4.63 | 4.14 | 4.68 | 2.6 °C |
| April | 5.11 | 4.05 | 3.52 | 4.59 | 9.1 °C |
| May | 5.63 | 3.57 | 3.02 | 4.43 | 15.7 °C |
| June | 5.23 | 3.09 | 2.54 | 3.85 | 21.0 °C |
| July | 4.26 | 2.69 | 2.18 | 3.16 | 23.8 °C |
| August | 4.47 | 3.23 | 2.63 | 3.56 | 24.2 °C |
| September | 4.33 | 4.01 | 3.35 | 4.02 | 19.6 °C |
| October | 3.51 | 4.38 | 3.77 | 3.98 | 12.9 °C |
| November | 2.37 | 3.80 | 3.37 | 3.22 | 5.1 °C |
| December snow | 2.01 | 3.95 | 3.61 | 3.14 | -2.6 °C |
| Year | 3.89 avg | 3.85 avg | 1222 kWh | 1402 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 380 Wp at 37°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Namp’o
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°
4.2 mrow pitch at 37°
How Namp’o compares in North Korea
Against the other 96 places in North Korea with climate data, for a fixed array at its best angle.
8thof 97 places in North Korea for sunshine, shared: 3.89 peak sun hours a day on flat ground.
−2%solar energy a year compared with the average place in North Korea: 1,402 against 1,424 kWh per kWp.
−2 mindaylight on the longest day, compared with Pyongyang: 14 h 53 min against 14 h 55 min.
37°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); Namp’o ranks joint 8th. 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 27 min, +2 min compared with Pyongyang.
Solar forecast for Namp’o, 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 Namp’o
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A free, live card for Namp’o: 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.