Aichi · Japan · 35.14° N · 137.05° E
Solar position in Nisshin
Sun position, daylight and the best solar panel angle for Nisshin — computed for 35.14° N, 137.05° E, 45 m above sea level.
The sun right now
Sun in Nisshin today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:41 | sun 18° below horizon |
| Nautical dawn | 05:10 | 12° below |
| Civil dawn | 05:40 | 6° below |
| Sunrise | 06:06 | 104° ESE |
| Golden hour ends | 06:41 | sun 6° up |
| Solar noon | 11:35 | 42.8° high |
| Golden hour starts | 16:30 | sun 6° up |
| Sunset | 17:05 | 256° WSW |
| Civil dusk | 17:31 | 6° below |
| Nautical dusk | 18:00 | 12° below |
| Astronomical dusk | 18:30 | 18° below |
| Day length | 10 h 59 min | |
Sun path diagram for Nisshin
Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.
- June solstice
- Equinox
- December solstice
- Today
On the June solstice the sun reaches 78.3° at solar noon in Nisshin; on the December solstice only 31.5°. 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 06:57 | 12:03 | 17:08 | 10 h 11 min | 35.0° |
| February | 06:31 | 12:05 | 17:39 | 11 h 08 min | 44.3° |
| March | 05:54 | 11:59 | 18:03 | 12 h 09 min | 55.1° |
| April | 05:12 | 11:50 | 18:28 | 13 h 16 min | 66.7° |
| May | 04:44 | 11:48 | 18:52 | 14 h 09 min | 75.0° |
| June | 04:37 | 11:53 | 19:09 | 14 h 32 min | 78.3° |
| July | 04:52 | 11:58 | 19:03 | 14 h 11 min | 75.3° |
| August | 05:15 | 11:54 | 18:33 | 13 h 18 min | 67.0° |
| September | 05:38 | 11:44 | 17:50 | 12 h 12 min | 55.6° |
| October | 06:02 | 11:36 | 17:09 | 11 h 07 min | 44.2° |
| November | 06:31 | 11:37 | 16:42 | 10 h 11 min | 35.0° |
| December | 06:55 | 11:49 | 16:43 | 9 h 47 min | 31.5° |
A year of daylight in Nisshin
Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.
Best solar panel angle in Nisshin
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
32°collects the most energy over a year: 1334 kWh per kWp.
46°gives the most in the darkest month — the one an off-grid system is sized for.
- Yearly energy
- Worst-month energy
| Tilt | kWh/kWp per year | Share of best year | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1167 | 88% | 1.78 | 2.5× |
| 15° | 1286 | 96% | 2.41 | 1.8× |
| 30° | 1333 | 100% | 2.89 | 1.5× |
| 32° year-round best | 1334 | 100% | 2.94 | 1.4× |
| 35° = latitude | 1332 | 100% | 3.01 | 1.4× |
| 45° | 1305 | 98% | 3.18 | 1.3× |
| 46° off-grid best | 1301 | 98% | 3.20 | 1.3× |
| 60° | 1204 | 90% | 3.28 | 1.4× |
| 70° | 1101 | 83% | 3.23 | 1.6× |
| 90° | 824 | 62% | 2.87 | 2.1× |
A fixed array in Nisshin produces the most over a year at 32°. The design month for an off-grid system is December: at 46° it makes 3.20 kWh per kWp a day, 9% more than at 32°, and costs 2% of the yearly total. Why steep panels win winter.
Off-grid solar in Nisshin at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 32° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 32° | Mean temp. |
|---|---|---|---|---|---|
| January | 2.41 | 3.76 | 3.38 | 3.16 | 1.7 °C |
| February | 3.12 | 3.89 | 3.47 | 3.59 | 2.7 °C |
| March | 4.07 | 3.98 | 3.51 | 4.11 | 6.0 °C |
| April | 4.85 | 3.61 | 3.11 | 4.25 | 11.1 °C |
| May | 5.30 | 3.19 | 2.68 | 4.17 | 16.1 °C |
| June | 4.81 | 2.75 | 2.26 | 3.60 | 20.1 °C |
| July | 4.86 | 2.83 | 2.30 | 3.63 | 23.9 °C |
| August | 5.13 | 3.46 | 2.82 | 4.09 | 24.9 °C |
| September | 4.09 | 3.53 | 2.92 | 3.65 | 21.6 °C |
| October | 3.30 | 3.73 | 3.17 | 3.44 | 16.0 °C |
| November | 2.62 | 3.86 | 3.36 | 3.23 | 10.1 °C |
| December | 2.17 | 3.64 | 3.23 | 2.94 | 4.5 °C |
| Year | 3.90 avg | 3.52 avg | 1101 kWh | 1334 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 520 Wp of panels at 70°, versus 400 Wp at 32°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Nisshin
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°
3.7 mrow pitch at 32°
How Nisshin compares in Japan
Against the other 1,215 places in Japan with climate data, for a fixed array at its best angle.
239thof 1,216 places in Japan for sunshine, shared: 3.90 peak sun hours a day on flat ground.
+4%solar energy a year compared with the average place in Japan: 1,334 against 1,284 kWh per kWp.
−3 mindaylight on the longest day, compared with Tokyo: 14 h 32 min against 14 h 35 min.
32°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); Nisshin ranks joint 239th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.26 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 9 h 47 min, +3 min compared with Tokyo.
Solar forecast for Nisshin, next 48 hours
Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.
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Questions about the sun in Nisshin
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Places near Nisshin
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A free, live card for Nisshin: where the sun is right now on today's path, a countdown to sunset or sunrise, the daylight change, the moon phase at night and the best panel angle.
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.