Solarposition.org

Tottori · Japan · 35.50° N · 134.23° E

Solar position in Tottori-shi

Sun position, daylight and the best solar panel angle for Tottori-shi — computed for 35.50° N, 134.23° E, 6 m above sea level.

Sunrise today06:17104° ESE
Sunset today17:16256° WSW
Best panel angle28°year-round, facing south
Off-grid angle56°best for the darkest month

The sun right now

Azimuth180.0°
Elevation42.4°
At solar noon, 11:46Open on the sun map

Sun in Tottori-shi today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn04:52sun 18° below horizon
Nautical dawn05:2212° below
Civil dawn05:516° below
Sunrise06:17104° ESE
Golden hour ends06:52sun 6° up
Solar noon11:4642.4° high
Golden hour starts16:40sun 6° up
Sunset17:16256° WSW
Civil dusk17:426° below
Nautical dusk18:1112° below
Astronomical dusk18:4118° below
Day length10 h 58 min

Sun path diagram for Tottori-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 77.9° at solar noon in Tottori-shi; on the December solstice only 31.1°. Sunrise swings from 60° ENE in June to 119° 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
January07:0912:1417:1910 h 09 min34.6°
February06:4312:1617:5011 h 07 min43.9°
March06:0612:1018:1512 h 09 min54.7°
April05:2312:0118:4013 h 17 min66.3°
May04:5411:5919:0514 h 11 min74.7°
June04:4712:0419:2114 h 34 min77.9°
July05:0212:0919:1514 h 13 min75.0°
August05:2612:0618:4513 h 19 min66.6°
September05:4911:5618:0212 h 12 min55.2°
October06:1411:4717:2011 h 07 min43.9°
November06:4311:4816:5310 h 09 min34.6°
December07:0812:0016:539 h 45 min31.1°

A year of daylight in Tottori-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 Tottori-shi

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

28°collects the most energy over a year: 1170 kWh per kWp.

56°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 28°Best worst-month 56°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°106291%1.333.2×
15°114698%1.702.5×
28° year-round best1170100%1.942.2×
30°1169100%1.972.1×
36° = latitude116199%2.042.0×
45°112997%2.121.8×
56° off-grid best106291%2.161.6×
60°103088%2.151.6×
70°93380%2.101.4×
90°68859%1.841.7×

A fixed array in Tottori-shi produces the most over a year at 28°. The design month for an off-grid system is December: at 56° it makes 2.16 kWh per kWp a day, 11% more than at 28°, and costs 9% of the yearly total. Why steep panels win winter.

Off-grid solar in Tottori-shi at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 28° (year-round best).

012345January: 2.09 (70°)2.1JanFebruary: 2.47 (70°)2.5FebMarch: 2.96 (70°)3.0MarApril: 3.01 (70°)3.0AprMay: 2.66 (70°)2.7MayJune: 2.29 (70°)2.3JunJuly: 2.23 (70°)2.2JulAugust: 2.71 (70°)2.7AugSeptember: 2.69 (70°)2.7SepOctober: 2.90 (70°)2.9OctNovember: 2.58 (70°)2.6NovDecember: 2.10 (70°)2.1Dec28°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 28°Mean temp.
January1.772.372.092.013.8 °C
February2.472.802.472.604.2 °C
March3.563.382.963.476.8 °C
April4.693.513.014.1211.6 °C
May5.183.172.664.1616.4 °C
June4.812.782.293.6920.6 °C
July4.632.762.233.5324.6 °C
August4.913.352.713.9525.9 °C
September3.803.262.693.3622.2 °C
October3.113.432.903.1216.8 °C
November2.202.992.582.4811.6 °C
December1.642.402.101.946.4 °C
Year3.57 avg3.02 avg933 kWh1170 kWh

Sizing example. To run a 1 kWh-per-day load through January on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 560 Wp of panels at 70°, versus 610 Wp at 28°. The steep array is 8% smaller for the same winter. Size your own system.

Row spacing in Tottori-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.

4.2 mrow pitch at 70°

3.5 mrow pitch at 28°

Row spacing calculator

How Tottori-shi compares in Japan

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

1033rdof 1,216 places in Japan for sunshine, shared: 3.57 peak sun hours a day on flat ground.

−9%solar energy a year compared with the average place in Japan: 1,170 against 1,284 kWh per kWp.

−1 mindaylight on the longest day, compared with Tokyo: 14 h 34 min against 14 h 35 min.

28°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); Tottori-shi ranks joint 1033rd. In its darkest month, January, 1 kWp of off-grid panels at 70° makes 2.09 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 9 h 45 min, +1 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Tottori-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 Tottori-shi

What is the best solar panel angle in Tottori-shi?
For a fixed array facing south, the best year-round tilt in Tottori-shi is 28°, worth about 1170 kWh per kWp a year. An off-grid system that has to get through December does better at about 56°.
What time is sunrise and sunset in Tottori-shi today?
On 25 October 2026 the sun rises at 06:17 and sets at 17:16 local time (UTC+9), giving 10 h 58 min of daylight. Solar noon is at 11:46.
How many peak sun hours does Tottori-shi get?
On a flat surface 3.6 hours a day averaged over the year, from 1.6 in December to 5.2 in May. Panels tilted at 70° receive 2.4 sun hours a day in January.
How high does the sun get in Tottori-shi?
At solar noon the sun stands 77.9° above the horizon on the June solstice and 31.1° on the December solstice.
Is Tottori-shi a good place for solar panels?
With 3.6 peak sun hours a day on flat ground, Tottori-shi ranks joint 1033rd of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (28°) makes about 1,170 kWh a year here, 9% less than the average place in Japan.

Places near Tottori-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.