Chungcheongnam-do · South Korea · 36.27° N · 126.91° E
Solar position in Buyeo
Sun position, daylight and the best solar panel angle for Buyeo — computed for 36.27° N, 126.91° E, 19 m above sea level.
The sun right now
Sun in Buyeo today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:21 | sun 18° below horizon |
| Nautical dawn | 05:51 | 12° below |
| Civil dawn | 06:21 | 6° below |
| Sunrise | 06:48 | 104° ESE |
| Golden hour ends | 07:23 | sun 6° up |
| Solar noon | 12:16 | 41.7° high |
| Golden hour starts | 17:08 | sun 6° up |
| Sunset | 17:44 | 255° WSW |
| Civil dusk | 18:10 | 6° below |
| Nautical dusk | 18:40 | 12° below |
| Astronomical dusk | 19:10 | 18° below |
| Day length | 10 h 56 min | |
Sun path diagram for Buyeo
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 77.2° at solar noon in Buyeo; on the December solstice only 30.3°. Sunrise swings from 60° ENE in June to 119° ESE in December — a 59° 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 | 07:40 | 12:43 | 17:46 | 10 h 06 min | 33.8° |
| February | 07:13 | 12:46 | 18:18 | 11 h 05 min | 43.2° |
| March | 06:35 | 12:39 | 18:44 | 12 h 09 min | 53.9° |
| April | 05:51 | 12:31 | 19:11 | 13 h 19 min | 65.6° |
| May | 05:21 | 12:28 | 19:36 | 14 h 14 min | 73.9° |
| June | 05:15 | 12:34 | 19:53 | 14 h 38 min | 77.2° |
| July | 05:30 | 12:38 | 19:46 | 14 h 16 min | 74.2° |
| August | 05:54 | 12:35 | 19:15 | 13 h 21 min | 65.9° |
| September | 06:19 | 12:25 | 18:31 | 12 h 12 min | 54.5° |
| October | 06:44 | 12:16 | 17:49 | 11 h 05 min | 43.1° |
| November | 07:14 | 12:17 | 17:20 | 10 h 06 min | 33.9° |
| December | 07:39 | 12:30 | 17:20 | 9 h 41 min | 30.3° |
A year of daylight in Buyeo
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 Buyeo
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
33°collects the most energy over a year: 1344 kWh per kWp.
42°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° | 1169 | 87% | 1.74 | 2.6× |
| 15° | 1291 | 96% | 2.32 | 2.0× |
| 30° | 1343 | 100% | 2.77 | 1.6× |
| 33° year-round best | 1344 | 100% | 2.84 | 1.6× |
| 36° = latitude | 1343 | 100% | 2.90 | 1.5× |
| 42° off-grid best | 1331 | 99% | 3.00 | 1.5× |
| 45° | 1321 | 98% | 3.04 | 1.5× |
| 60° | 1227 | 91% | 3.13 | 1.7× |
| 70° | 1128 | 84% | 3.08 | 1.8× |
| 90° | 860 | 64% | 2.74 | 2.4× |
A fixed array in Buyeo produces the most over a year at 33°. The design month for an off-grid system is December: at 42° it makes 3.00 kWh per kWp a day, 6% more than at 33°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in Buyeo at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 33° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 33° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 2.36 | 3.73 | 3.39 | 3.11 | -1.4 °C |
| February snow | 3.19 | 4.20 | 3.79 | 3.77 | 0.3 °C |
| March | 4.30 | 4.30 | 3.82 | 4.41 | 4.3 °C |
| April | 5.03 | 3.82 | 3.31 | 4.46 | 10.0 °C |
| May | 5.55 | 3.40 | 2.86 | 4.39 | 15.8 °C |
| June | 5.09 | 2.95 | 2.42 | 3.81 | 20.7 °C |
| July | 4.30 | 2.63 | 2.12 | 3.21 | 23.9 °C |
| August | 4.50 | 3.13 | 2.54 | 3.57 | 24.9 °C |
| September | 4.11 | 3.60 | 3.00 | 3.70 | 20.4 °C |
| October | 3.60 | 4.20 | 3.59 | 3.85 | 14.3 °C |
| November | 2.51 | 3.66 | 3.22 | 3.11 | 7.6 °C |
| December | 2.10 | 3.42 | 3.08 | 2.84 | 0.8 °C |
| Year | 3.89 avg | 3.58 avg | 1128 kWh | 1344 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 560 Wp of panels at 70°, versus 420 Wp at 33°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Buyeo
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.
4.4 mrow pitch at 70°
3.8 mrow pitch at 33°
How Buyeo compares in South Korea
Against the other 144 places in South Korea with climate data, for a fixed array at its best angle.
61stof 145 places in South Korea for sunshine, shared: 3.89 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in South Korea: 1,344 against 1,356 kWh per kWp.
−8 mindaylight on the longest day, compared with Seoul: 14 h 38 min against 14 h 46 min.
33°best year-round tilt here; across South Korea it runs from 27° in Seogwipo to 37° in Uijeongbu-si.
Of the 145 places in South Korea, Tongyeong gets the most sun (4.04 peak sun hours a day) and Kosong the least (3.76); Buyeo ranks joint 61st. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 2.12 kWh a day here, against 2.12 kWh on average in South Korea. The shortest day lasts 9 h 41 min, +7 min compared with Seoul.
Solar forecast for Buyeo, 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 Buyeo
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Places near Buyeo
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A free, live card for Buyeo: 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.