Solarposition.org

Miyagi · Japan · 38.57° N · 140.85° E

Solar position in Naka-niida

Sun position, daylight and the best solar panel angle for Naka-niida — computed for 38.57° N, 140.85° E, 31 m above sea level.

Sunrise today05:55105° ESE
Sunset today16:45255° WSW
Best panel angle33°year-round, facing south
Off-grid angle61°best for the darkest month

The sun right now

Azimuth180.0°
Elevation39.4°
At solar noon, 11:20Open on the sun map

Sun in Naka-niida today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn04:26sun 18° below horizon
Nautical dawn04:5712° below
Civil dawn05:286° below
Sunrise05:55105° ESE
Golden hour ends06:32sun 6° up
Solar noon11:2039.4° high
Golden hour starts16:08sun 6° up
Sunset16:45255° WSW
Civil dusk17:126° below
Nautical dusk17:4312° below
Astronomical dusk18:1418° below
Day length10 h 50 min

Sun path diagram for Naka-niida

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 solstice56789101112131415161718EquinoxDecember solstice78910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 74.9° at solar noon in Naka-niida; on the December solstice only 28.0°. Sunrise swings from 59° ENE in June to 120° ESE in December — a 61° 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
January06:5011:4716:459 h 55 min31.5°
February06:2011:5017:2011 h 00 min40.9°
March05:3911:4417:4812 h 10 min51.6°
April04:5211:3518:1813 h 26 min63.3°
May04:2011:3318:4614 h 26 min71.6°
June04:1211:3819:0414 h 52 min74.9°
July04:2811:4218:5614 h 28 min71.9°
August04:5511:3918:2313 h 28 min63.6°
September05:2211:2917:3612 h 13 min52.2°
October05:5111:2116:5011 h 00 min40.8°
November06:2411:2216:199 h 55 min31.6°
December06:5011:3416:189 h 28 min28.0°

A year of daylight in Naka-niida

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 Naka-niida

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

33°collects the most energy over a year: 1201 kWh per kWp.

61°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 33°Best worst-month 61°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°104587%1.313.2×
15°115496%1.782.4×
30°1200100%2.151.9×
33° year-round best1201100%2.201.9×
39° = latitude1196100%2.301.8×
45°118098%2.381.7×
60°109891%2.471.4×
61° off-grid best109091%2.471.4×
70°101084%2.441.4×
90°77464%2.191.9×

A fixed array in Naka-niida produces the most over a year at 33°. The design month for an off-grid system is December: at 61° it makes 2.47 kWh per kWp a day, 12% more than at 33°, and costs 9% of the yearly total. Why steep panels win winter.

Off-grid solar in Naka-niida at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 33° (year-round best).

012345January: 2.75 (70°)2.8JanFebruary: 3.13 (70°)3.1FebMarch: 3.22 (70°)3.2MarApril: 3.15 (70°)3.1AprMay: 2.76 (70°)2.8MayJune: 2.45 (70°)2.5JunJuly: 2.22 (70°)2.2JulAugust: 2.59 (70°)2.6AugSeptember: 2.78 (70°)2.8SepOctober: 2.92 (70°)2.9OctNovember: 2.85 (70°)2.8NovDecember: 2.44 (70°)2.4Dec33°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 33°Mean temp.
January snow1.863.052.752.49-0.8 °C
February snow2.613.463.133.08-0.7 °C
March3.583.613.223.682.5 °C
April4.593.613.154.137.8 °C
May5.043.252.764.0713.4 °C
June4.952.952.453.7917.8 °C
July4.342.722.223.3121.6 °C
August4.413.172.593.5823.1 °C
September3.683.332.783.3619.5 °C
October2.903.412.923.1013.6 °C
November2.123.252.852.697.7 °C
December1.612.732.442.202.1 °C
Year3.48 avg3.21 avg1010 kWh1201 kWh

Sizing example. To run a 1 kWh-per-day load through July on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 530 Wp of panels at 70°, versus 540 Wp at 33°. The steep array is 1% smaller for the same winter. Size your own system.

Row spacing in Naka-niida

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.

4.7 mrow pitch at 70°

4.0 mrow pitch at 33°

Row spacing calculator

How Naka-niida compares in Japan

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

1088thof 1,216 places in Japan for sunshine, shared: 3.48 peak sun hours a day on flat ground.

−6%solar energy a year compared with the average place in Japan: 1,201 against 1,284 kWh per kWp.

+17 mindaylight on the longest day, compared with Tokyo: 14 h 52 min against 14 h 35 min.

33°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); Naka-niida ranks joint 1088th. In its darkest month, July, 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 28 min, −16 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Naka-niida, 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 Naka-niida

What is the best solar panel angle in Naka-niida?
For a fixed array facing south, the best year-round tilt in Naka-niida is 33°, worth about 1201 kWh per kWp a year. An off-grid system that has to get through December does better at about 61°.
What time is sunrise and sunset in Naka-niida today?
On 25 October 2026 the sun rises at 05:55 and sets at 16:45 local time (UTC+9), giving 10 h 50 min of daylight. Solar noon is at 11:20.
How many peak sun hours does Naka-niida get?
On a flat surface 3.5 hours a day averaged over the year, from 1.6 in December to 5.0 in May. Panels tilted at 70° receive 2.7 sun hours a day in July.
How high does the sun get in Naka-niida?
At solar noon the sun stands 74.9° above the horizon on the June solstice and 28.0° on the December solstice.
Is Naka-niida a good place for solar panels?
With 3.5 peak sun hours a day on flat ground, Naka-niida ranks joint 1088th of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (33°) makes about 1,201 kWh a year here, 6% less than the average place in Japan.

Places near Naka-niida

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.