Buryatiya Republic · Russia · 51.83° N · 107.60° E
Solar position in Ulan-Ude
Sun position, daylight and the best solar panel angle for Ulan-Ude — computed for 51.83° N, 107.60° E, 536 m above sea level.
The sun right now
Sun in Ulan-Ude today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:37 | sun 18° below horizon |
| Nautical dawn | 06:16 | 12° below |
| Civil dawn | 06:56 | 6° below |
| Sunrise | 07:30 | 109° ESE |
| Golden hour ends | 08:19 | sun 6° up |
| Solar noon | 12:33 | 26.1° high |
| Golden hour starts | 16:47 | sun 6° up |
| Sunset | 17:35 | 251° WSW |
| Civil dusk | 18:10 | 6° below |
| Nautical dusk | 18:49 | 12° below |
| Astronomical dusk | 19:28 | 18° below |
| Day length | 10 h 05 min | |
Sun path diagram for Ulan-Ude
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 61.6° at solar noon in Ulan-Ude; on the December solstice only 14.8°. Sunrise swings from 49° NE in June to 129° SE in December — a 80° 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 | 08:44 | 13:01 | 17:17 | 8 h 34 min | 18.3° |
| February | 07:52 | 13:03 | 18:14 | 10 h 21 min | 27.6° |
| March | 06:50 | 12:57 | 19:03 | 12 h 13 min | 38.4° |
| April | 05:41 | 12:48 | 19:56 | 14 h 15 min | 50.0° |
| May | 04:48 | 12:46 | 20:44 | 15 h 56 min | 58.4° |
| June | 04:30 | 12:51 | 21:12 | 16 h 42 min | 61.6° |
| July | 04:55 | 12:55 | 20:55 | 16 h 00 min | 58.6° |
| August | 05:43 | 12:52 | 20:01 | 14 h 18 min | 50.3° |
| September | 06:33 | 12:42 | 18:51 | 12 h 18 min | 38.9° |
| October | 07:23 | 12:33 | 17:43 | 10 h 20 min | 27.5° |
| November | 08:18 | 12:35 | 16:51 | 8 h 33 min | 18.3° |
| December | 08:54 | 12:47 | 16:40 | 7 h 46 min | 14.8° |
A year of daylight in Ulan-Ude
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 Ulan-Ude
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
47°collects the most energy over a year: 1445 kWh per kWp.
79°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° | 1070 | 74% | 0.66 | 7.5× |
| 15° | 1267 | 88% | 1.21 | 4.4× |
| 30° | 1395 | 96% | 1.70 | 3.1× |
| 45° | 1445 | 100% | 2.08 | 2.4× |
| 47° year-round best | 1445 | 100% | 2.13 | 2.3× |
| 52° = latitude | 1441 | 100% | 2.22 | 2.3× |
| 60° | 1415 | 98% | 2.35 | 2.2× |
| 70° | 1352 | 94% | 2.44 | 2.1× |
| 79° off-grid best | 1268 | 88% | 2.47 | 2.0× |
| 90° | 1133 | 78% | 2.43 | 1.9× |
A fixed array in Ulan-Ude produces the most over a year at 47°. The design month for an off-grid system is December: at 79° it makes 2.47 kWh per kWp a day, 16% more than at 47°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Ulan-Ude at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 47° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 47° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.21 | 3.55 | 3.48 | 3.06 | -22.3 °C |
| February snow | 2.22 | 4.63 | 4.48 | 4.16 | -19.2 °C |
| March snow | 3.59 | 5.38 | 5.03 | 4.97 | -9.3 °C |
| April | 4.79 | 4.73 | 4.25 | 4.86 | 1.1 °C |
| May | 5.85 | 4.62 | 4.02 | 4.99 | 8.5 °C |
| June | 6.09 | 4.31 | 3.62 | 4.67 | 16.9 °C |
| July | 5.67 | 4.20 | 3.49 | 4.43 | 19.5 °C |
| August | 4.71 | 4.21 | 3.56 | 4.23 | 16.5 °C |
| September | 3.58 | 4.30 | 3.76 | 4.06 | 8.7 °C |
| October snow | 2.26 | 3.92 | 3.55 | 3.45 | -0.8 °C |
| November snow | 1.23 | 3.01 | 2.83 | 2.54 | -11.3 °C |
| December snow | 0.83 | 2.52 | 2.44 | 2.13 | -19.7 °C |
| Year | 3.51 avg | 4.11 avg | 1352 kWh | 1445 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 480 Wp of panels at 70°, versus 550 Wp at 47°. The steep array is 13% smaller for the same winter. Size your own system.
Row spacing in Ulan-Ude
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.
9.9 mrow pitch at 70°
8.5 mrow pitch at 47°
How Ulan-Ude compares in Russia
Against the other 979 places in Russia with climate data, for a fixed array at its best angle.
239thof 980 places in Russia for sunshine, shared: 3.51 peak sun hours a day on flat ground.
+21%solar energy a year compared with the average place in Russia: 1,446 against 1,196 kWh per kWp.
−51 mindaylight on the longest day, compared with Moscow: 16 h 42 min against 17 h 34 min.
47°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); Ulan-Ude ranks joint 239th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.44 kWh a day here, against 1.31 kWh on average in Russia. The shortest day lasts 7 h 46 min, +46 min compared with Moscow.
Solar forecast for Ulan-Ude, 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 Ulan-Ude
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Places near Ulan-Ude
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A free, live card for Ulan-Ude: 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.