Solarposition.org

Nara · Japan · 34.53° N · 135.95° E

Solar position in Haibara-akanedai

Sun position, daylight and the best solar panel angle for Haibara-akanedai — computed for 34.53° N, 135.95° E, 345 m above sea level.

Sunrise today06:09104° ESE
Sunset today17:10256° WSW
Best panel angle31°year-round, facing south
Off-grid angle46°best for the darkest month

The sun right now

Azimuth180.0°
Elevation43.4°
At solar noon, 11:40Open on the sun map

Sun in Haibara-akanedai today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn04:45sun 18° below horizon
Nautical dawn05:1412° below
Civil dawn05:446° below
Sunrise06:09104° ESE
Golden hour ends06:44sun 6° up
Solar noon11:4043.4° high
Golden hour starts16:35sun 6° up
Sunset17:10256° WSW
Civil dusk17:366° below
Nautical dusk18:0512° below
Astronomical dusk18:3418° below
Day length11 h 01 min

Sun path diagram for Haibara-akanedai

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 78.9° at solar noon in Haibara-akanedai; 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
January07:0012:0717:1410 h 13 min35.6°
February06:3512:1017:4411 h 09 min44.9°
March05:5912:0318:0812 h 09 min55.7°
April05:1711:5518:3213 h 15 min67.3°
May04:4911:5218:5614 h 06 min75.6°
June04:4311:5719:1214 h 28 min78.9°
July04:5812:0219:0614 h 08 min75.9°
August05:2111:5918:3713 h 16 min67.6°
September05:4311:4917:5512 h 12 min56.2°
October06:0611:4017:1411 h 09 min44.8°
November06:3511:4116:4810 h 14 min35.6°
December06:5811:5416:499 h 51 min32.1°

A year of daylight in Haibara-akanedai

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 Haibara-akanedai

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

31°collects the most energy over a year: 1304 kWh per kWp.

46°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 31°Best worst-month 46°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°115489%1.792.4×
15°126497%2.381.8×
30°1304100%2.821.5×
31° year-round best1304100%2.851.5×
35° = latitude1301100%2.931.4×
45°127197%3.091.3×
46° off-grid best126797%3.111.3×
60°116990%3.171.4×
70°106582%3.121.5×
90°79361%2.752.1×

A fixed array in Haibara-akanedai produces the most over a year at 31°. The design month for an off-grid system is December: at 46° it makes 3.11 kWh per kWp a day, 9% more than at 31°, and costs 3% of the yearly total. Why steep panels win winter.

Off-grid solar in Haibara-akanedai at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 31° (year-round best).

012345January: 3.15 (70°)3.2JanFebruary: 3.27 (70°)3.3FebMarch: 3.40 (70°)3.4MarApril: 3.05 (70°)3.0AprMay: 2.62 (70°)2.6MayJune: 2.20 (70°)2.2JunJuly: 2.28 (70°)2.3JulAugust: 2.78 (70°)2.8AugSeptember: 2.84 (70°)2.8SepOctober: 3.07 (70°)3.1OctNovember: 3.25 (70°)3.2NovDecember: 3.12 (70°)3.1Dec31°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 31°Mean temp.
January2.373.533.152.973.4 °C
February3.053.693.273.414.4 °C
March4.033.883.404.007.4 °C
April4.843.563.054.2112.4 °C
May5.233.132.624.1117.1 °C
June4.742.692.203.5421.0 °C
July4.892.822.283.6424.9 °C
August5.153.432.784.0825.8 °C
September4.053.452.843.5822.5 °C
October3.273.643.073.3516.9 °C
November2.623.753.253.1311.4 °C
December2.183.533.122.855.9 °C
Year3.87 avg3.42 avg1065 kWh1304 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 410 Wp at 31°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Haibara-akanedai

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°

3.6 mrow pitch at 31°

Row spacing calculator

How Haibara-akanedai compares in Japan

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

355thof 1,216 places in Japan for sunshine, shared: 3.87 peak sun hours a day on flat ground.

+2%solar energy a year compared with the average place in Japan: 1,304 against 1,284 kWh per kWp.

−6 mindaylight on the longest day, compared with Tokyo: 14 h 28 min against 14 h 35 min.

31°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); Haibara-akanedai ranks joint 355th. 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 51 min, +6 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Haibara-akanedai, 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 Haibara-akanedai

What is the best solar panel angle in Haibara-akanedai?
For a fixed array facing south, the best year-round tilt in Haibara-akanedai is 31°, worth about 1304 kWh per kWp a year. An off-grid system that has to get through December does better at about 46°.
What time is sunrise and sunset in Haibara-akanedai today?
On 25 October 2026 the sun rises at 06:09 and sets at 17:10 local time (UTC+9), giving 11 h 01 min of daylight. Solar noon is at 11:40.
How many peak sun hours does Haibara-akanedai get?
On a flat surface 3.9 hours a day averaged over the year, from 2.2 in December to 5.2 in May. Panels tilted at 70° receive 2.7 sun hours a day in June.
How high does the sun get in Haibara-akanedai?
At solar noon the sun stands 78.9° above the horizon on the June solstice and 32.1° on the December solstice.
Is Haibara-akanedai a good place for solar panels?
With 3.9 peak sun hours a day on flat ground, Haibara-akanedai ranks joint 355th of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (31°) makes about 1,304 kWh a year here, 2% more than the average place in Japan.

Places near Haibara-akanedai

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.