Solarposition.org

Akita · Japan · 40.20° N · 140.39° E

Solar position in Kita-Akita

Sun position, daylight and the best solar panel angle for Kita-Akita — computed for 40.20° N, 140.39° E, 25 m above sea level.

Sunrise today05:59105° ESE
Sunset today16:45255° WSW
Best panel angle31°year-round, facing south
Off-grid angle59°best for the darkest month

The sun right now

Azimuth180.0°
Elevation37.8°
At solar noon, 11:22Open on the sun map

Sun in Kita-Akita today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn04:28sun 18° below horizon
Nautical dawn04:5912° below
Civil dawn05:316° below
Sunrise05:59105° ESE
Golden hour ends06:37sun 6° up
Solar noon11:2237.8° high
Golden hour starts16:07sun 6° up
Sunset16:45255° WSW
Civil dusk17:126° below
Nautical dusk17:4412° below
Astronomical dusk18:1618° below
Day length10 h 46 min

Sun path diagram for Kita-Akita

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 73.2° at solar noon in Kita-Akita; on the December solstice only 26.4°. Sunrise swings from 58° ENE in June to 121° ESE in December — a 63° 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
January06:5611:4916:439 h 47 min29.9°
February06:2411:5217:2010 h 56 min39.2°
March05:4111:4517:5012 h 10 min50.0°
April04:5211:3718:2213 h 30 min61.6°
May04:1811:3518:5214 h 34 min70.0°
June04:0911:4019:1115 h 02 min73.2°
July04:2611:4419:0314 h 37 min70.3°
August04:5411:4118:2713 h 33 min61.9°
September05:2411:3117:3812 h 14 min50.6°
October05:5511:2216:5010 h 56 min39.2°
November06:3011:2416:179 h 47 min29.9°
December06:5711:3616:159 h 18 min26.4°

A year of daylight in Kita-Akita

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 Kita-Akita

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: 1115 kWh per kWp.

59°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 31°Best worst-month 59°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°99189%0.974.3×
15°108197%1.273.4×
30°1114100%1.502.8×
31° year-round best1115100%1.512.7×
40° = latitude110499%1.602.5×
45°108898%1.642.3×
59° off-grid best101291%1.692.1×
60°100590%1.692.0×
70°92083%1.661.9×
90°69763%1.481.6×

A fixed array in Kita-Akita produces the most over a year at 31°. The design month for an off-grid system is December: at 59° it makes 1.69 kWh per kWp a day, 12% more than at 31°, and costs 9% of the yearly total. Why steep panels win winter.

Off-grid solar in Kita-Akita at 70°

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

012345January: 1.78 (70°)1.8JanFebruary: 2.32 (70°)2.3FebMarch: 2.84 (70°)2.8MarApril: 3.08 (70°)3.1AprMay: 2.82 (70°)2.8MayJune: 2.58 (70°)2.6JunJuly: 2.35 (70°)2.3JulAugust: 2.71 (70°)2.7AugSeptember: 2.98 (70°)3.0SepOctober: 2.90 (70°)2.9OctNovember: 2.24 (70°)2.2NovDecember: 1.66 (70°)1.7Dec31°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 31°Mean temp.
January snow1.352.001.781.63-0.3 °C
February snow2.072.592.322.29-0.2 °C
March3.213.192.843.232.7 °C
April4.383.533.083.997.6 °C
May5.003.312.824.1313.0 °C
June5.103.102.583.9817.7 °C
July4.482.872.353.4921.6 °C
August4.493.312.713.7023.5 °C
September3.833.582.983.5520.0 °C
October2.803.402.903.0114.1 °C
November1.732.572.242.108.0 °C
December1.211.881.661.512.2 °C
Year3.31 avg2.95 avg920 kWh1115 kWh

Sizing example. To run a 1 kWh-per-day load through December on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 710 Wp of panels at 70°, versus 780 Wp at 31°. The steep array is 9% smaller for the same winter. Size your own system.

Row spacing in Kita-Akita

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.

5.1 mrow pitch at 70°

4.1 mrow pitch at 31°

Row spacing calculator

How Kita-Akita compares in Japan

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

1174thof 1,216 places in Japan for sunshine, shared: 3.31 peak sun hours a day on flat ground.

−13%solar energy a year compared with the average place in Japan: 1,115 against 1,284 kWh per kWp.

+28 mindaylight on the longest day, compared with Tokyo: 15 h 02 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); Kita-Akita ranks joint 1174th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.66 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 9 h 18 min, −26 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Kita-Akita, 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 Kita-Akita

What is the best solar panel angle in Kita-Akita?
For a fixed array facing south, the best year-round tilt in Kita-Akita is 31°, worth about 1115 kWh per kWp a year. An off-grid system that has to get through December does better at about 59°.
What time is sunrise and sunset in Kita-Akita today?
On 25 October 2026 the sun rises at 05:59 and sets at 16:45 local time (UTC+9), giving 10 h 46 min of daylight. Solar noon is at 11:22.
How many peak sun hours does Kita-Akita get?
On a flat surface 3.3 hours a day averaged over the year, from 1.2 in December to 5.1 in June. Panels tilted at 70° receive 1.9 sun hours a day in December.
How high does the sun get in Kita-Akita?
At solar noon the sun stands 73.2° above the horizon on the June solstice and 26.4° on the December solstice.
Is Kita-Akita a good place for solar panels?
With 3.3 peak sun hours a day on flat ground, Kita-Akita ranks joint 1174th of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (31°) makes about 1,115 kWh a year here, 13% less than the average place in Japan.

Places near Kita-Akita

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.