Solarposition.org

Nara · Japan · 34.51° N · 135.79° E

Solar position in Kashihara-shi

Sun position, daylight and the best solar panel angle for Kashihara-shi — computed for 34.51° N, 135.79° E, 65 m above sea level.

Sunrise today06:10104° ESE
Sunset today17:11256° WSW
Best panel angle31°year-round, facing south
Off-grid angle48°best for the darkest month

The sun right now

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

Sun in Kashihara-shi today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn04:46sun 18° below horizon
Nautical dawn05:1512° below
Civil dawn05:446° below
Sunrise06:10104° ESE
Golden hour ends06:45sun 6° up
Solar noon11:4043.4° high
Golden hour starts16:36sun 6° up
Sunset17:11256° WSW
Civil dusk17:366° below
Nautical dusk18:0612° below
Astronomical dusk18:3518° below
Day length11 h 01 min

Sun path diagram for Kashihara-shi

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 Kashihara-shi; 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
January07:0112:0817:1410 h 14 min35.6°
February06:3612:1017:4511 h 09 min44.9°
March05:5912:0418:0812 h 09 min55.7°
April05:1811:5518:3313 h 14 min67.3°
May04:5011:5318:5614 h 06 min75.7°
June04:4411:5819:1214 h 28 min78.9°
July04:5912:0319:0714 h 08 min76.0°
August05:2111:5918:3713 h 16 min67.6°
September05:4311:4917:5512 h 12 min56.2°
October06:0611:4117:1511 h 09 min44.8°
November06:3511:4216:4910 h 14 min35.6°
December06:5911:5416:509 h 51 min32.1°

A year of daylight in Kashihara-shi

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 Kashihara-shi

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: 1303 kWh per kWp.

48°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 48°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°115589%1.772.4×
15°126497%2.351.8×
30°1303100%2.791.5×
31° year-round best1303100%2.811.5×
35° = latitude1299100%2.901.4×
45°126997%3.051.3×
48° off-grid best125496%3.081.3×
60°116689%3.131.4×
70°106282%3.071.5×
90°78961%2.712.0×

A fixed array in Kashihara-shi produces the most over a year at 31°. The design month for an off-grid system is December: at 48° it makes 3.08 kWh per kWp a day, 10% more than at 31°, and costs 4% of the yearly total. Why steep panels win winter.

Off-grid solar in Kashihara-shi at 70°

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

012345January: 3.10 (70°)3.1JanFebruary: 3.23 (70°)3.2FebMarch: 3.38 (70°)3.4MarApril: 3.05 (70°)3.1AprMay: 2.63 (70°)2.6MayJune: 2.21 (70°)2.2JunJuly: 2.30 (70°)2.3JulAugust: 2.79 (70°)2.8AugSeptember: 2.86 (70°)2.9SepOctober: 3.09 (70°)3.1OctNovember: 3.22 (70°)3.2NovDecember: 3.07 (70°)3.1Dec31°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 31°Mean temp.
January2.353.473.102.933.0 °C
February3.023.633.233.374.1 °C
March4.013.853.383.987.1 °C
April4.843.563.054.2112.1 °C
May5.253.142.634.1317.0 °C
June4.752.702.213.5620.9 °C
July4.912.842.303.6624.8 °C
August5.163.442.794.0925.7 °C
September4.063.462.863.5922.3 °C
October3.283.653.093.3616.6 °C
November2.613.723.223.1111.0 °C
December2.163.473.072.815.5 °C
Year3.87 avg3.41 avg1062 kWh1303 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 420 Wp at 31°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Kashihara-shi

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 Kashihara-shi 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.

+1%solar energy a year compared with the average place in Japan: 1,303 against 1,284 kWh per kWp.

−7 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); Kashihara-shi ranks joint 355th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.21 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 Kashihara-shi, 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 Kashihara-shi

What is the best solar panel angle in Kashihara-shi?
For a fixed array facing south, the best year-round tilt in Kashihara-shi is 31°, worth about 1303 kWh per kWp a year. An off-grid system that has to get through December does better at about 48°.
What time is sunrise and sunset in Kashihara-shi today?
On 25 October 2026 the sun rises at 06:10 and sets at 17:11 local time (UTC+9), giving 11 h 01 min of daylight. Solar noon is at 11:40.
How many peak sun hours does Kashihara-shi 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 Kashihara-shi?
At solar noon the sun stands 78.9° above the horizon on the June solstice and 32.1° on the December solstice.
Is Kashihara-shi a good place for solar panels?
With 3.9 peak sun hours a day on flat ground, Kashihara-shi ranks joint 355th of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (31°) makes about 1,303 kWh a year here, 1% more than the average place in Japan.

Places near Kashihara-shi

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.