Solarposition.org

Hiroshima · Japan · 34.28° N · 132.27° E

Solar position in Ōno-hara

Sun position, daylight and the best solar panel angle for Ōno-hara — computed for 34.28° N, 132.27° E, 3 m above sea level.

Sunrise today06:24104° ESE
Sunset today17:25256° WSW
Best panel angle29°year-round, facing south
Off-grid angle56°best for the darkest month

The sun right now

Azimuth180.0°
Elevation43.7°
At solar noon, 11:54Open on the sun map

Sun in Ōno-hara today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn05:00sun 18° below horizon
Nautical dawn05:2912° below
Civil dawn05:586° below
Sunrise06:24104° ESE
Golden hour ends06:58sun 6° up
Solar noon11:5443.7° high
Golden hour starts16:50sun 6° up
Sunset17:25256° WSW
Civil dusk17:516° below
Nautical dusk18:2012° below
Astronomical dusk18:4918° below
Day length11 h 01 min

Sun path diagram for Ōno-hara

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 solstice8910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 79.2° at solar noon in Ōno-hara; on the December solstice only 32.3°. Sunrise swings from 61° ENE in June to 118° ESE in December — a 58° 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
January07:1512:2217:2910 h 15 min35.8°
February06:4912:2417:5911 h 10 min45.1°
March06:1312:1818:2212 h 09 min55.9°
April05:3312:0918:4613 h 14 min67.6°
May05:0512:0719:1014 h 05 min75.9°
June04:5912:1219:2614 h 27 min79.2°
July05:1312:1719:2014 h 07 min76.2°
August05:3612:1418:5113 h 16 min67.9°
September05:5712:0318:0912 h 12 min56.5°
October06:2011:5517:2911 h 09 min45.1°
November06:4911:5617:0310 h 15 min35.8°
December07:1212:0817:049 h 52 min32.3°

A year of daylight in Ōno-hara

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 Ōno-hara

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

29°collects the most energy over a year: 1259 kWh per kWp.

56°gives the most in the darkest month — the one an off-grid system is sized for.

50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 29°Best worst-month 56°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°113590%1.572.8×
15°123198%2.022.2×
29° year-round best1259100%2.331.8×
30°1259100%2.341.8×
34° = latitude1255100%2.411.7×
45°121997%2.531.6×
56° off-grid best114791%2.581.4×
60°111288%2.571.4×
70°100880%2.511.5×
90°74259%2.201.9×

A fixed array in Ōno-hara produces the most over a year at 29°. The design month for an off-grid system is December: at 56° it makes 2.58 kWh per kWp a day, 11% more than at 29°, and costs 9% of the yearly total. Why steep panels win winter.

Off-grid solar in Ōno-hara at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 29° (year-round best).

012345January: 2.62 (70°)2.6JanFebruary: 2.90 (70°)2.9FebMarch: 3.23 (70°)3.2MarApril: 3.04 (70°)3.0AprMay: 2.66 (70°)2.7MayJune: 2.20 (70°)2.2JunJuly: 2.25 (70°)2.2JulAugust: 2.75 (70°)2.7AugSeptember: 2.86 (70°)2.9SepOctober: 3.20 (70°)3.2OctNovember: 2.95 (70°)2.9NovDecember: 2.51 (70°)2.5Dec29°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 29°Mean temp.
January2.142.962.622.514.6 °C
February2.853.292.903.055.5 °C
March3.923.703.233.828.1 °C
April4.853.553.044.2212.8 °C
May5.343.182.664.2317.3 °C
June4.732.692.203.5821.2 °C
July4.832.782.253.6425.0 °C
August5.103.392.754.0626.1 °C
September4.103.482.863.6122.8 °C
October3.443.793.203.4817.5 °C
November2.513.422.952.8612.2 °C
December1.932.862.512.336.9 °C
Year3.82 avg3.26 avg1008 kWh1259 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 540 Wp of panels at 70°, versus 510 Wp at 29°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Ōno-hara

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.

4.1 mrow pitch at 70°

3.5 mrow pitch at 29°

Row spacing calculator

How Ōno-hara compares in Japan

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

664thof 1,216 places in Japan for sunshine, shared: 3.82 peak sun hours a day on flat ground.

−2%solar energy a year compared with the average place in Japan: 1,259 against 1,284 kWh per kWp.

−8 mindaylight on the longest day, compared with Tokyo: 14 h 27 min against 14 h 35 min.

29°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); Ōno-hara ranks joint 664th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.20 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 9 h 52 min, +7 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Ōno-hara, 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 Ōno-hara

What is the best solar panel angle in Ōno-hara?
For a fixed array facing south, the best year-round tilt in Ōno-hara is 29°, worth about 1259 kWh per kWp a year. An off-grid system that has to get through December does better at about 56°.
What time is sunrise and sunset in Ōno-hara today?
On 25 October 2026 the sun rises at 06:24 and sets at 17:25 local time (UTC+9), giving 11 h 01 min of daylight. Solar noon is at 11:54.
How many peak sun hours does Ōno-hara get?
On a flat surface 3.8 hours a day averaged over the year, from 1.9 in December to 5.3 in May. Panels tilted at 70° receive 2.7 sun hours a day in June.
How high does the sun get in Ōno-hara?
At solar noon the sun stands 79.2° above the horizon on the June solstice and 32.3° on the December solstice.
Is Ōno-hara a good place for solar panels?
With 3.8 peak sun hours a day on flat ground, Ōno-hara ranks joint 664th of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (29°) makes about 1,259 kWh a year here, 2% less than the average place in Japan.

Places near Ōno-hara

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.