Dzabkhan · Mongolia · 47.74° N · 96.84° E
Solar position in Uliastay
Sun position, daylight and the best solar panel angle for Uliastay — computed for 47.74° N, 96.84° E, 1755 m above sea level.
The sun right now
Sun in Uliastay today
Saturday, 24 October 2026 · local time UTC+7
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:20 | sun 18° below horizon |
| Nautical dawn | 05:56 | 12° below |
| Civil dawn | 06:32 | 6° below |
| Sunrise | 07:04 | 107° ESE |
| Golden hour ends | 07:47 | sun 6° up |
| Solar noon | 12:16 | 30.5° high |
| Golden hour starts | 16:45 | sun 6° up |
| Sunset | 17:28 | 253° WSW |
| Civil dusk | 18:00 | 6° below |
| Nautical dusk | 18:36 | 12° below |
| Astronomical dusk | 19:11 | 18° below |
| Day length | 10 h 24 min | |
Sun path diagram for Uliastay
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 65.7° at solar noon in Uliastay; on the December solstice only 18.9°. Sunrise swings from 53° NE in June to 125° SE in December — a 73° 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 | 08:12 | 12:44 | 17:15 | 9 h 04 min | 22.4° |
| February | 07:28 | 12:46 | 18:04 | 10 h 36 min | 31.7° |
| March | 06:34 | 12:40 | 18:46 | 12 h 12 min | 42.5° |
| April | 05:33 | 12:31 | 19:30 | 13 h 57 min | 54.1° |
| May | 04:48 | 12:29 | 20:10 | 15 h 23 min | 62.5° |
| June | 04:34 | 12:34 | 20:34 | 16 h 00 min | 65.7° |
| July | 04:55 | 12:38 | 20:21 | 15 h 26 min | 62.7° |
| August | 05:35 | 12:35 | 19:35 | 13 h 59 min | 54.4° |
| September | 06:17 | 12:25 | 18:33 | 12 h 16 min | 43.0° |
| October | 06:59 | 12:17 | 17:34 | 10 h 34 min | 31.6° |
| November | 07:46 | 12:18 | 16:49 | 9 h 04 min | 22.4° |
| December | 08:18 | 12:30 | 16:42 | 8 h 24 min | 18.9° |
A year of daylight in Uliastay
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 Uliastay
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: 1819 kWh per kWp.
65°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° | 1353 | 74% | 1.24 | 4.7× |
| 15° | 1600 | 88% | 2.16 | 2.8× |
| 30° | 1758 | 97% | 2.96 | 2.0× |
| 45° | 1819 | 100% | 3.58 | 1.7× |
| 47° year-round best | 1819 | 100% | 3.64 | 1.6× |
| 48° = latitude | 1819 | 100% | 3.67 | 1.6× |
| 60° | 1780 | 98% | 3.98 | 1.5× |
| 65° off-grid best | 1745 | 96% | 4.06 | 1.5× |
| 70° | 1700 | 93% | 4.11 | 1.6× |
| 90° | 1425 | 78% | 4.04 | 2.3× |
A fixed array in Uliastay produces the most over a year at 47°. The design month for an off-grid system is December: at 65° it makes 4.06 kWh per kWp a day, 11% more than at 47°, and costs 4% of the yearly total. Why steep panels win winter.
Off-grid solar in Uliastay 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 | 1.92 | 5.20 | 5.06 | 4.53 | -20.4 °C |
| February snow | 3.06 | 6.07 | 5.84 | 5.50 | -17.6 °C |
| March snow | 4.48 | 6.38 | 5.96 | 5.98 | -9.5 °C |
| April snow | 5.66 | 5.61 | 5.06 | 5.72 | 0.1 °C |
| May | 6.80 | 4.95 | 4.36 | 5.59 | 5.8 °C |
| June | 6.85 | 4.45 | 3.81 | 5.08 | 12.6 °C |
| July | 6.48 | 4.41 | 3.74 | 4.91 | 15.0 °C |
| August | 5.75 | 4.78 | 4.11 | 5.03 | 12.4 °C |
| September | 4.73 | 5.49 | 4.86 | 5.35 | 5.7 °C |
| October snow | 3.14 | 5.50 | 5.01 | 4.83 | -2.3 °C |
| November snow | 1.88 | 4.30 | 4.05 | 3.70 | -11.1 °C |
| December snow | 1.49 | 4.26 | 4.11 | 3.64 | -18.1 °C |
| Year | 4.36 avg | 5.11 avg | 1700 kWh | 1819 kWh |
Sizing example. To run a 1 kWh-per-day load through July on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 320 Wp of panels at 70°, versus 320 Wp at 47°. The steep array is 3% smaller for the same winter. Size your own system.
Row spacing in Uliastay
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.
7.4 mrow pitch at 70°
6.6 mrow pitch at 47°
How Uliastay compares in Mongolia
Against the other 23 places in Mongolia with climate data, for a fixed array at its best angle.
8thof 24 places in Mongolia for sunshine: 4.36 peak sun hours a day on flat ground.
+4%solar energy a year compared with the average place in Mongolia: 1,819 against 1,757 kWh per kWp.
−2 mindaylight on the longest day, compared with Ulan Bator: 16 h 00 min against 16 h 02 min.
47°best year-round tilt here; across Mongolia it runs from 43° in Ulaangom to 48° in Mörön.
Of the 24 places in Mongolia, Bogd gets the most sun (4.71 peak sun hours a day) and Sühbaatar the least (3.82); Uliastay ranks 8th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 3.74 kWh a day here, against 3.47 kWh on average in Mongolia. The shortest day lasts 8 h 24 min, +1 min compared with Ulan Bator.
Solar forecast for Uliastay, 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 Uliastay: 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.