Hokkaido · Japan · 43.11° N · 141.55° E
Solar position in Ebetsu
Sun position, daylight and the best solar panel angle for Ebetsu — computed for 43.11° N, 141.55° E, 12 m above sea level.
The sun right now
Sun in Ebetsu today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:23 | sun 18° below horizon |
| Nautical dawn | 04:56 | 12° below |
| Civil dawn | 05:29 | 6° below |
| Sunrise | 05:59 | 106° ESE |
| Golden hour ends | 06:38 | sun 6° up |
| Solar noon | 11:17 | 34.9° high |
| Golden hour starts | 15:56 | sun 6° up |
| Sunset | 16:36 | 254° WSW |
| Civil dusk | 17:05 | 6° below |
| Nautical dusk | 17:38 | 12° below |
| Astronomical dusk | 18:11 | 18° below |
| Day length | 10 h 37 min | |
Sun path diagram for Ebetsu
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 70.3° at solar noon in Ebetsu; on the December solstice only 23.5°. 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 06:59 | 11:45 | 16:31 | 9 h 32 min | 27.0° |
| February | 06:23 | 11:47 | 17:12 | 10 h 49 min | 36.3° |
| March | 05:36 | 11:41 | 17:46 | 12 h 10 min | 47.1° |
| April | 04:43 | 11:32 | 18:22 | 13 h 40 min | 58.7° |
| May | 04:05 | 11:30 | 18:56 | 14 h 51 min | 67.1° |
| June | 03:54 | 11:35 | 19:16 | 15 h 23 min | 70.3° |
| July | 04:12 | 11:40 | 19:07 | 14 h 54 min | 67.4° |
| August | 04:45 | 11:36 | 18:27 | 13 h 42 min | 59.0° |
| September | 05:19 | 11:26 | 17:33 | 12 h 14 min | 47.6° |
| October | 05:54 | 11:18 | 16:42 | 10 h 48 min | 36.3° |
| November | 06:33 | 11:19 | 16:05 | 9 h 32 min | 27.0° |
| December | 07:01 | 11:31 | 16:01 | 8 h 59 min | 23.5° |
A year of daylight in Ebetsu
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 Ebetsu
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
35°collects the most energy over a year: 1167 kWh per kWp.
71°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° | 1002 | 86% | 0.91 | 4.8× |
| 15° | 1112 | 95% | 1.24 | 3.6× |
| 30° | 1163 | 100% | 1.53 | 2.9× |
| 35° year-round best | 1167 | 100% | 1.61 | 2.7× |
| 43° = latitude | 1159 | 99% | 1.71 | 2.4× |
| 45° | 1154 | 99% | 1.74 | 2.4× |
| 60° | 1083 | 93% | 1.86 | 2.0× |
| 70° | 1005 | 86% | 1.88 | 1.8× |
| 71° off-grid best | 996 | 85% | 1.89 | 1.8× |
| 90° | 789 | 68% | 1.81 | 1.7× |
A fixed array in Ebetsu produces the most over a year at 35°. The design month for an off-grid system is December: at 71° it makes 1.89 kWh per kWp a day, 17% more than at 35°, and costs 15% of the yearly total. Why steep panels win winter.
Off-grid solar in Ebetsu at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 35° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 35° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.37 | 2.47 | 2.25 | 1.95 | -4.6 °C |
| February snow | 2.11 | 3.10 | 2.83 | 2.64 | -4.5 °C |
| March snow | 3.29 | 3.74 | 3.38 | 3.59 | -1.2 °C |
| April | 4.51 | 3.82 | 3.38 | 4.24 | 4.3 °C |
| May | 5.17 | 3.58 | 3.08 | 4.33 | 10.0 °C |
| June | 5.09 | 3.22 | 2.71 | 4.00 | 14.7 °C |
| July | 4.70 | 3.11 | 2.58 | 3.70 | 18.7 °C |
| August | 4.37 | 3.37 | 2.79 | 3.68 | 20.3 °C |
| September | 3.74 | 3.70 | 3.12 | 3.62 | 17.2 °C |
| October | 2.64 | 3.40 | 2.94 | 3.01 | 11.0 °C |
| November | 1.52 | 2.40 | 2.12 | 1.99 | 4.3 °C |
| December snow | 1.12 | 2.09 | 1.88 | 1.61 | -2.1 °C |
| Year | 3.31 avg | 3.17 avg | 1005 kWh | 1167 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 630 Wp of panels at 70°, versus 730 Wp at 35°. The steep array is 15% smaller for the same winter. Size your own system.
Row spacing in Ebetsu
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°
4.7 mrow pitch at 35°
How Ebetsu 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.
−9%solar energy a year compared with the average place in Japan: 1,167 against 1,284 kWh per kWp.
+48 mindaylight on the longest day, compared with Tokyo: 15 h 23 min against 14 h 35 min.
35°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); Ebetsu ranks joint 1174th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.89 kWh a day here, against 2.14 kWh on average in Japan. The shortest day lasts 8 h 59 min, −45 min compared with Tokyo.
Solar forecast for Ebetsu, 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 Ebetsu
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Places near Ebetsu
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A free, live card for Ebetsu: 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.