Sakha · Russia · 66.43° N · 112.40° E
Solar position in Udachny
Sun position, daylight and the best solar panel angle for Udachny — computed for 66.43° N, 112.40° E, 315 m above sea level.
The sun right now
Sun in Udachny today
Sunday, 25 October 2026 · local time UTC+9
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:03 | sun 18° below horizon |
| Nautical dawn | 07:04 | 12° below |
| Civil dawn | 08:05 | 6° below |
| Sunrise | 09:01 | 119° ESE |
| Golden hour ends | 10:31 | sun 6° up |
| Solar noon | 13:13 | 11.6° high |
| Golden hour starts | 15:56 | sun 6° up |
| Sunset | 17:25 | 240° WSW |
| Civil dusk | 18:22 | 6° below |
| Nautical dusk | 19:23 | 12° below |
| Astronomical dusk | 20:23 | 18° below |
| Day length | 8 h 24 min | |
Sun path diagram for Udachny
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 47.0° at solar noon in Udachny; on the December solstice only 0.6°.
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 | 11:11 | 13:41 | 16:12 | 5 h 02 min | 3.9° |
| February | 09:16 | 13:44 | 18:12 | 8 h 56 min | 13.1° |
| March | 07:28 | 13:38 | 19:48 | 12 h 21 min | 23.8° |
| April | 05:25 | 13:29 | 21:35 | 16 h 10 min | 35.4° |
| May | 03:21 | 13:27 | 23:36 | 20 h 14 min | 43.8° |
| June | — | 13:32 | — | 24 h | 47.0° |
| July | 03:21 | 13:36 | 23:48 | 20 h 27 min | 44.1° |
| August | 05:24 | 13:33 | 21:40 | 16 h 15 min | 35.7° |
| September | 07:07 | 13:23 | 19:37 | 12 h 29 min | 24.3° |
| October | 08:47 | 13:14 | 17:41 | 8 h 53 min | 12.9° |
| November | 10:45 | 13:15 | 15:46 | 5 h 02 min | 3.9° |
| December | 12:18 | 13:28 | 14:38 | 2 h 19 min | 0.6° |
A year of daylight in Udachny
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 Udachny
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
54°collects the most energy over a year: 1115 kWh per kWp.
57°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° | 754 | 68% | 0.01 | — |
| 15° | 919 | 82% | 0.01 | — |
| 30° | 1038 | 93% | 0.01 | — |
| 45° | 1103 | 99% | 0.01 | — |
| 54° year-round best | 1115 | 100% | 0.01 | — |
| 57° off-grid best | 1114 | 100% | 0.01 | — |
| 60° | 1110 | 100% | 0.01 | — |
| 66° = latitude | 1097 | 98% | 0.01 | — |
| 70° | 1083 | 97% | 0.01 | — |
| 90° | 955 | 86% | 0.01 | — |
A fixed array in Udachny produces the most over a year at 54°. The design month for an off-grid system is December: at 57° it makes 0.01 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Udachny at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 54° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 54° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.08 | 0.94 | 0.94 | 0.81 | -33.5 °C |
| February snow | 0.78 | 2.90 | 2.94 | 2.67 | -32.6 °C |
| March snow | 2.38 | 5.18 | 5.06 | 4.83 | -21.6 °C |
| April snow | 4.32 | 6.14 | 5.75 | 5.81 | -10.4 °C |
| May snow | 5.33 | 5.45 | 4.91 | 5.31 | -1.1 °C |
| June | 5.46 | 4.70 | 4.02 | 4.58 | 11.3 °C |
| July | 5.00 | 4.52 | 3.83 | 4.32 | 14.1 °C |
| August | 3.41 | 3.67 | 3.16 | 3.42 | 10.3 °C |
| September | 1.97 | 2.78 | 2.47 | 2.53 | 1.8 °C |
| October snow | 0.81 | 1.71 | 1.58 | 1.49 | -11.6 °C |
| November snow | 0.19 | 1.03 | 0.99 | 0.88 | -26.2 °C |
| December snow | 0.01 | 0.01 | 0.01 | 0.01 | -32.8 °C |
| Year | 2.49 avg | 3.25 avg | 1083 kWh | 1115 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 117,960 Wp of panels at 70°, versus 117,960 Wp at 54°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Udachny
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.
—The winter sun stays too low for rows to be shade-free; use a single row.
How Udachny compares in Russia
Against the other 979 places in Russia with climate data, for a fixed array at its best angle.
927thof 980 places in Russia for sunshine, shared: 2.49 peak sun hours a day on flat ground.
−7%solar energy a year compared with the average place in Russia: 1,115 against 1,196 kWh per kWp.
+6 h 26 mindaylight on the longest day, compared with Moscow: 24 h (midnight sun) against 17 h 34 min.
54°best year-round tilt here; across Russia it runs from 32° in Derbent to 54° in Yakutsk.
Of the 980 places in Russia, Novorossiysk gets the most sun (3.96 peak sun hours a day) and Polyarnyy the least (1.93); Udachny ranks joint 927th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.01 kWh a day here, against 1.31 kWh on average in Russia. The shortest day lasts 2 h 19 min, −4 h 41 min compared with Moscow.
Solar forecast for Udachny, 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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A free, live card for Udachny: 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.