Solarposition.org

Osaka · Japan · 34.49° N · 135.40° E

Solar position in Tadaoka-higashi

Sun position, daylight and the best solar panel angle for Tadaoka-higashi — computed for 34.49° N, 135.40° E, 8 m above sea level.

Sunrise today06:11104° ESE
Sunset today17:12256° WSW
Best panel angle30°year-round, facing south
Off-grid angle50°best for the darkest month

The sun right now

Azimuth180.0°
Elevation43.5°
At solar noon, 11:42Open on the sun map

Sun in Tadaoka-higashi today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn04:47sun 18° below horizon
Nautical dawn05:1612° below
Civil dawn05:466° below
Sunrise06:11104° ESE
Golden hour ends06:46sun 6° up
Solar noon11:4243.5° high
Golden hour starts16:38sun 6° up
Sunset17:12256° WSW
Civil dusk17:386° below
Nautical dusk18:0712° below
Astronomical dusk18:3618° below
Day length11 h 01 min

Sun path diagram for Tadaoka-higashi

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 solstice5678910111213141516171819EquinoxDecember solstice8910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 79.0° at solar noon in Tadaoka-higashi; on the December solstice only 32.1°. Sunrise swings from 60° 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
January07:0212:0917:1610 h 14 min35.6°
February06:3712:1217:4611 h 09 min44.9°
March06:0112:0518:1012 h 09 min55.7°
April05:2011:5718:3413 h 14 min67.4°
May04:5211:5518:5814 h 06 min75.7°
June04:4612:0019:1414 h 28 min79.0°
July05:0012:0419:0814 h 08 min76.0°
August05:2312:0118:3913 h 16 min67.7°
September05:4511:5117:5712 h 12 min56.3°
October06:0811:4217:1711 h 09 min44.9°
November06:3711:4416:5010 h 14 min35.6°
December07:0011:5616:519 h 51 min32.1°

A year of daylight in Tadaoka-higashi

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 Tadaoka-higashi

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

30°collects the most energy over a year: 1301 kWh per kWp.

50°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 30°Best worst-month 50°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°115889%1.752.5×
15°126497%2.301.9×
30° year-round best1301100%2.721.6×
34° = latitude1298100%2.801.5×
45°126597%2.971.3×
50° off-grid best123895%3.021.3×
60°116089%3.041.4×
70°105681%2.981.5×
90°78360%2.632.0×

A fixed array in Tadaoka-higashi produces the most over a year at 30°. The design month for an off-grid system is December: at 50° it makes 3.02 kWh per kWp a day, 11% more than at 30°, and costs 5% of the yearly total. Why steep panels win winter.

Off-grid solar in Tadaoka-higashi at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 30° (year-round best).

012345January: 3.01 (70°)3.0JanFebruary: 3.14 (70°)3.1FebMarch: 3.35 (70°)3.3MarApril: 3.06 (70°)3.1AprMay: 2.65 (70°)2.7MayJune: 2.24 (70°)2.2JunJuly: 2.32 (70°)2.3JulAugust: 2.82 (70°)2.8AugSeptember: 2.88 (70°)2.9SepOctober: 3.12 (70°)3.1OctNovember: 3.17 (70°)3.2NovDecember: 2.98 (70°)3.0Dec30°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 30°Mean temp.
January2.313.363.012.842.6 °C
February2.973.533.143.283.6 °C
March3.983.813.353.946.7 °C
April4.843.563.064.2211.8 °C
May5.293.162.654.1816.8 °C
June4.802.732.243.6220.8 °C
July4.962.872.323.7224.8 °C
August5.193.472.824.1425.5 °C
September4.103.492.883.6322.0 °C
October3.323.693.123.4016.2 °C
November2.583.653.173.0510.5 °C
December2.133.372.982.724.9 °C
Year3.88 avg3.39 avg1056 kWh1301 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 530 Wp of panels at 70°, versus 430 Wp at 30°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Tadaoka-higashi

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 30°

Row spacing calculator

How Tadaoka-higashi compares in Japan

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

313thof 1,216 places in Japan for sunshine, shared: 3.88 peak sun hours a day on flat ground.

+1%solar energy a year compared with the average place in Japan: 1,301 against 1,284 kWh per kWp.

−7 mindaylight on the longest day, compared with Tokyo: 14 h 28 min against 14 h 35 min.

30°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); Tadaoka-higashi ranks joint 313th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.24 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 9 h 51 min, +6 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Tadaoka-higashi, 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 Tadaoka-higashi

What is the best solar panel angle in Tadaoka-higashi?
For a fixed array facing south, the best year-round tilt in Tadaoka-higashi is 30°, worth about 1301 kWh per kWp a year. An off-grid system that has to get through December does better at about 50°.
What time is sunrise and sunset in Tadaoka-higashi today?
On 25 October 2026 the sun rises at 06:11 and sets at 17:12 local time (UTC+9), giving 11 h 01 min of daylight. Solar noon is at 11:42.
How many peak sun hours does Tadaoka-higashi get?
On a flat surface 3.9 hours a day averaged over the year, from 2.1 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 Tadaoka-higashi?
At solar noon the sun stands 79.0° above the horizon on the June solstice and 32.1° on the December solstice.
Is Tadaoka-higashi a good place for solar panels?
With 3.9 peak sun hours a day on flat ground, Tadaoka-higashi ranks joint 313th of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (30°) makes about 1,301 kWh a year here, 1% more than the average place in Japan.

Places near Tadaoka-higashi

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.