Solarposition.org

Kumamoto · Japan · 32.20° N · 130.02° E

Solar position in Ushibukamachi

Sun position, daylight and the best solar panel angle for Ushibukamachi — computed for 32.20° N, 130.02° E, 109 m above sea level.

Sunrise today06:30104° ESE
Sunset today17:36256° WSW
Best panel angle27°year-round, facing south
Off-grid angle52°best for the darkest month

The sun right now

Azimuth180.0°
Elevation45.7°
At solar noon, 12:03Open on the sun map

Sun in Ushibukamachi today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn05:08sun 18° below horizon
Nautical dawn05:3712° below
Civil dawn06:056° below
Sunrise06:30104° ESE
Golden hour ends07:04sun 6° up
Solar noon12:0345.7° high
Golden hour starts17:03sun 6° up
Sunset17:36256° WSW
Civil dusk18:016° below
Nautical dusk18:3012° below
Astronomical dusk18:5918° below
Day length11 h 06 min

Sun path diagram for Ushibukamachi

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 81.2° at solar noon in Ushibukamachi; on the December solstice only 34.4°. Sunrise swings from 61° ENE in June to 117° ESE in December — a 56° 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
January07:1912:3117:4210 h 23 min37.9°
February06:5612:3318:1011 h 14 min47.2°
March06:2312:2718:3112 h 09 min58.0°
April05:4412:1818:5313 h 09 min69.6°
May05:1812:1619:1413 h 56 min78.0°
June05:1312:2119:2914 h 16 min81.2°
July05:2712:2619:2413 h 57 min78.3°
August05:4712:2318:5813 h 10 min69.9°
September06:0712:1218:1812 h 11 min58.5°
October06:2712:0417:4111 h 13 min47.1°
November06:5312:0517:1710 h 23 min37.9°
December07:1612:1717:1810 h 02 min34.4°

A year of daylight in Ushibukamachi

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 Ushibukamachi

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

27°collects the most energy over a year: 1269 kWh per kWp.

52°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 27°Best worst-month 52°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°115791%1.662.6×
15°124698%2.092.1×
27° year-round best1269100%2.351.8×
30°1267100%2.401.8×
32° = latitude1265100%2.431.7×
45°121996%2.571.5×
52° off-grid best117392%2.601.4×
60°110487%2.591.5×
70°99578%2.511.7×
90°72157%2.182.2×

A fixed array in Ushibukamachi produces the most over a year at 27°. The design month for an off-grid system is December: at 52° it makes 2.60 kWh per kWp a day, 11% more than at 27°, and costs 8% of the yearly total. Why steep panels win winter.

Off-grid solar in Ushibukamachi at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 27° (year-round best).

012345January: 2.52 (70°)2.5JanFebruary: 2.89 (70°)2.9FebMarch: 3.14 (70°)3.1MarApril: 2.89 (70°)2.9AprMay: 2.45 (70°)2.4MayJune: 1.96 (70°)2.0JunJuly: 2.26 (70°)2.3JulAugust: 2.77 (70°)2.8AugSeptember: 3.00 (70°)3.0SepOctober: 3.38 (70°)3.4OctNovember: 2.99 (70°)3.0NovDecember: 2.51 (70°)2.5Dec27°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 27°Mean temp.
January2.202.902.522.439.8 °C
February2.963.342.893.0610.6 °C
March4.003.663.143.7812.6 °C
April4.843.422.894.1216.1 °C
May5.112.962.454.0019.7 °C
June4.372.421.963.2822.8 °C
July5.222.812.263.9026.4 °C
August5.423.442.774.2727.8 °C
September4.463.683.003.8725.4 °C
October3.764.063.383.7021.3 °C
November2.693.532.992.9216.8 °C
December2.072.922.512.3512.0 °C
Year3.93 avg3.26 avg995 kWh1269 kWh

Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 600 Wp of panels at 70°, versus 500 Wp at 27°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Ushibukamachi

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.

3.8 mrow pitch at 70°

3.3 mrow pitch at 27°

Row spacing calculator

How Ushibukamachi compares in Japan

Against the other 1,215 places in Japan with climate data, for a fixed array at its best angle.

173rdof 1,216 places in Japan for sunshine, shared: 3.93 peak sun hours a day on flat ground.

−1%solar energy a year compared with the average place in Japan: 1,269 against 1,284 kWh per kWp.

−19 mindaylight on the longest day, compared with Tokyo: 14 h 16 min against 14 h 35 min.

27°best year-round tilt here; across Japan it runs from 17° in Miyakojima to 41° in Kushiro.

Of the 1,216 places in Japan, Miyakojima gets the most sun (4.34 peak sun hours a day) and Wakkanai and one other place the least (3.17); Ushibukamachi ranks joint 173rd. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.96 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 10 h 02 min, +18 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Ushibukamachi, 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 Ushibukamachi

What is the best solar panel angle in Ushibukamachi?
For a fixed array facing south, the best year-round tilt in Ushibukamachi is 27°, worth about 1269 kWh per kWp a year. An off-grid system that has to get through December does better at about 52°.
What time is sunrise and sunset in Ushibukamachi today?
On 25 October 2026 the sun rises at 06:30 and sets at 17:36 local time (UTC+9), giving 11 h 06 min of daylight. Solar noon is at 12:03.
How many peak sun hours does Ushibukamachi get?
On a flat surface 3.9 hours a day averaged over the year, from 2.1 in December to 5.4 in August. Panels tilted at 70° receive 2.4 sun hours a day in June.
How high does the sun get in Ushibukamachi?
At solar noon the sun stands 81.2° above the horizon on the June solstice and 34.4° on the December solstice.
Is Ushibukamachi a good place for solar panels?
With 3.9 peak sun hours a day on flat ground, Ushibukamachi ranks joint 173rd of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (27°) makes about 1,269 kWh a year here, 1% less than the average place in Japan.

Places near Ushibukamachi

All places in Japan

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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.