Solarposition.org

Nara · Japan · 34.60° N · 135.69° E

Solar position in Tatsuno-kita

Sun position, daylight and the best solar panel angle for Tatsuno-kita — computed for 34.60° N, 135.69° E, 42 m above sea level.

Sunrise today06:10104° ESE
Sunset today17:11256° WSW
Best panel angle30°year-round, facing south
Off-grid angle50°best for the darkest month

The sun right now

Azimuth180.0°
Elevation43.4°
At solar noon, 11:41Open on the sun map

Sun in Tatsuno-kita today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn04:46sun 18° below horizon
Nautical dawn05:1512° below
Civil dawn05:456° below
Sunrise06:10104° ESE
Golden hour ends06:45sun 6° up
Solar noon11:4143.4° high
Golden hour starts16:36sun 6° up
Sunset17:11256° WSW
Civil dusk17:376° below
Nautical dusk18:0612° below
Astronomical dusk18:3518° below
Day length11 h 00 min

Sun path diagram for Tatsuno-kita

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 78.8° at solar noon in Tatsuno-kita; on the December solstice only 32.0°. 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
January07:0112:0817:1510 h 13 min35.5°
February06:3612:1117:4511 h 09 min44.8°
March06:0012:0418:0912 h 09 min55.6°
April05:1811:5618:3313 h 15 min67.2°
May04:5011:5318:5714 h 06 min75.6°
June04:4411:5819:1314 h 29 min78.8°
July04:5912:0319:0714 h 08 min75.9°
August05:2112:0018:3813 h 16 min67.5°
September05:4411:5017:5612 h 12 min56.1°
October06:0711:4117:1511 h 09 min44.8°
November06:3611:4216:4910 h 13 min35.5°
December06:5911:5516:509 h 50 min32.0°

A year of daylight in Tatsuno-kita

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 Tatsuno-kita

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: 1290 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°114789%1.732.5×
15°125397%2.281.9×
30° year-round best1290100%2.701.6×
35° = latitude1287100%2.801.5×
45°125697%2.951.3×
50° off-grid best122995%3.001.3×
60°115389%3.031.4×
70°104981%2.971.5×
90°77960%2.622.0×

A fixed array in Tatsuno-kita produces the most over a year at 30°. The design month for an off-grid system is December: at 50° it makes 3.00 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 Tatsuno-kita at 70°

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

012345January: 2.99 (70°)3.0JanFebruary: 3.13 (70°)3.1FebMarch: 3.34 (70°)3.3MarApril: 3.04 (70°)3.0AprMay: 2.64 (70°)2.6MayJune: 2.22 (70°)2.2JunJuly: 2.30 (70°)2.3JulAugust: 2.79 (70°)2.8AugSeptember: 2.85 (70°)2.9SepOctober: 3.08 (70°)3.1OctNovember: 3.16 (70°)3.2NovDecember: 2.97 (70°)3.0Dec30°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 30°Mean temp.
January2.293.342.992.812.9 °C
February2.953.533.133.273.8 °C
March3.963.803.343.926.8 °C
April4.813.543.044.2011.9 °C
May5.243.152.644.1516.8 °C
June4.772.712.223.5920.8 °C
July4.902.842.303.6824.8 °C
August5.143.442.794.1025.6 °C
September4.053.462.853.5922.2 °C
October3.273.643.083.3516.5 °C
November2.573.653.163.0410.8 °C
December2.113.362.972.705.3 °C
Year3.84 avg3.37 avg1049 kWh1290 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 440 Wp at 30°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Tatsuno-kita

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 30°

Row spacing calculator

How Tatsuno-kita compares in Japan

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

506thof 1,216 places in Japan for sunshine, shared: 3.84 peak sun hours a day on flat ground.

±0%solar energy a year compared with the average place in Japan: 1,290 against 1,284 kWh per kWp.

−6 mindaylight on the longest day, compared with Tokyo: 14 h 29 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); Tatsuno-kita ranks joint 506th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.22 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 9 h 50 min, +6 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Tatsuno-kita, 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 Tatsuno-kita

What is the best solar panel angle in Tatsuno-kita?
For a fixed array facing south, the best year-round tilt in Tatsuno-kita is 30°, worth about 1290 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 Tatsuno-kita today?
On 25 October 2026 the sun rises at 06:10 and sets at 17:11 local time (UTC+9), giving 11 h 00 min of daylight. Solar noon is at 11:41.
How many peak sun hours does Tatsuno-kita get?
On a flat surface 3.8 hours a day averaged over the year, from 2.1 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 Tatsuno-kita?
At solar noon the sun stands 78.8° above the horizon on the June solstice and 32.0° on the December solstice.
Is Tatsuno-kita a good place for solar panels?
With 3.8 peak sun hours a day on flat ground, Tatsuno-kita ranks joint 506th of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (30°) makes about 1,290 kWh a year here, as much as the average place in Japan.

Places near Tatsuno-kita

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.