Solarposition.org

Hokkaido · Japan · 43.35° N · 142.38° E

Solar position in Shimo-furano

Sun position, daylight and the best solar panel angle for Shimo-furano — computed for 43.35° N, 142.38° E, 170 m above sea level.

Sunrise today05:56106° ESE
Sunset today16:32254° WSW
Best panel angle37°year-round, facing south
Off-grid angle71°best for the darkest month

The sun right now

Azimuth180.0°
Elevation34.6°
At solar noon, 11:14Open on the sun map

Sun in Shimo-furano today

Sunday, 25 October 2026 · local time UTC+9

EventTimeDirection / height
Astronomical dawn04:20sun 18° below horizon
Nautical dawn04:5312° below
Civil dawn05:266° below
Sunrise05:56106° ESE
Golden hour ends06:35sun 6° up
Solar noon11:1434.6° high
Golden hour starts15:52sun 6° up
Sunset16:32254° WSW
Civil dusk17:016° below
Nautical dusk17:3512° below
Astronomical dusk18:0818° below
Day length10 h 36 min

Sun path diagram for Shimo-furano

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 solstice45678910111213141516171819EquinoxDecember solstice89101112131415Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 70.1° at solar noon in Shimo-furano; on the December solstice only 23.3°. Sunrise swings from 56° NE in June to 122° ESE in December — a 66° 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
January06:5611:4116:279 h 30 min26.8°
February06:2011:4417:0810 h 48 min36.1°
March05:3211:3717:4312 h 10 min46.9°
April04:3911:2918:1913 h 41 min58.5°
May04:0011:2718:5314 h 53 min66.8°
June03:5011:3219:1415 h 24 min70.1°
July04:0811:3619:0414 h 56 min67.1°
August04:4111:3318:2413 h 43 min58.8°
September05:1611:2317:3012 h 15 min47.4°
October05:5111:1416:3810 h 48 min36.0°
November06:3011:1616:019 h 31 min26.8°
December06:5911:2815:578 h 58 min23.3°

A year of daylight in Shimo-furano

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 Shimo-furano

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

37°collects the most energy over a year: 1195 kWh per kWp.

71°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 37°Best worst-month 71°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°101485%0.974.4×
15°113195%1.353.3×
30°118999%1.672.6×
37° year-round best1195100%1.802.4×
43° = latitude1190100%1.892.2×
45°118599%1.912.2×
60°112194%2.051.9×
70°104688%2.081.8×
71° off-grid best103787%2.081.8×
90°83370%2.002.0×

A fixed array in Shimo-furano produces the most over a year at 37°. The design month for an off-grid system is December: at 71° it makes 2.08 kWh per kWp a day, 16% more than at 37°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in Shimo-furano at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 37° (year-round best).

012345January: 2.59 (70°)2.6JanFebruary: 3.13 (70°)3.1FebMarch: 3.82 (70°)3.8MarApril: 3.41 (70°)3.4AprMay: 3.03 (70°)3.0MayJune: 2.71 (70°)2.7JunJuly: 2.62 (70°)2.6JulAugust: 2.76 (70°)2.8AugSeptember: 3.06 (70°)3.1SepOctober: 2.96 (70°)3.0OctNovember: 2.22 (70°)2.2NovDecember: 2.08 (70°)2.1Dec37°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 37°Mean temp.
January snow1.512.792.592.27-8.9 °C
February snow2.283.373.132.95-8.5 °C
March snow3.444.173.823.88-4.5 °C
April4.513.833.414.252.2 °C
May5.053.513.034.209.3 °C
June5.073.212.713.9514.3 °C
July4.773.162.623.7218.4 °C
August4.293.322.763.6019.2 °C
September3.643.603.063.5414.9 °C
October2.593.382.963.047.9 °C
November1.532.482.222.090.6 °C
December snow1.182.272.081.80-6.3 °C
Year3.33 avg3.26 avg1046 kWh1195 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 570 Wp of panels at 70°, versus 660 Wp at 37°. The steep array is 14% smaller for the same winter. Size your own system.

Row spacing in Shimo-furano

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.

5.8 mrow pitch at 70°

4.9 mrow pitch at 37°

Row spacing calculator

How Shimo-furano compares in Japan

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

1162ndof 1,216 places in Japan for sunshine, shared: 3.33 peak sun hours a day on flat ground.

−7%solar energy a year compared with the average place in Japan: 1,195 against 1,284 kWh per kWp.

+50 mindaylight on the longest day, compared with Tokyo: 15 h 24 min against 14 h 35 min.

37°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); Shimo-furano ranks joint 1162nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.08 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 8 h 58 min, −47 min compared with Tokyo.

The sunniest places in Japan

Solar forecast for Shimo-furano, 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 Shimo-furano

What is the best solar panel angle in Shimo-furano?
For a fixed array facing south, the best year-round tilt in Shimo-furano is 37°, worth about 1195 kWh per kWp a year. An off-grid system that has to get through December does better at about 71°.
What time is sunrise and sunset in Shimo-furano today?
On 25 October 2026 the sun rises at 05:56 and sets at 16:32 local time (UTC+9), giving 10 h 36 min of daylight. Solar noon is at 11:14.
How many peak sun hours does Shimo-furano 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 2.3 sun hours a day in December.
How high does the sun get in Shimo-furano?
At solar noon the sun stands 70.1° above the horizon on the June solstice and 23.3° on the December solstice.
Is Shimo-furano a good place for solar panels?
With 3.3 peak sun hours a day on flat ground, Shimo-furano ranks joint 1162nd of 1,216 places in Japan for sunshine. A 1 kWp array at the best angle (37°) makes about 1,195 kWh a year here, 7% less than the average place in Japan.

Places near Shimo-furano

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.