Omsk Oblast · Russia · 54.91° N · 71.27° E
Solar position in Isil’kul’
Sun position, daylight and the best solar panel angle for Isil’kul’ — computed for 54.91° N, 71.27° E, 118 m above sea level.
The sun right now
Sun in Isil’kul’ today
Saturday, 24 October 2026 · local time UTC+6
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:00 | sun 18° below horizon |
| Nautical dawn | 06:42 | 12° below |
| Civil dawn | 07:24 | 6° below |
| Sunrise | 08:01 | 109° ESE |
| Golden hour ends | 08:54 | sun 6° up |
| Solar noon | 12:58 | 23.3° high |
| Golden hour starts | 17:03 | sun 6° up |
| Sunset | 17:55 | 250° WSW |
| Civil dusk | 18:33 | 6° below |
| Nautical dusk | 19:15 | 12° below |
| Astronomical dusk | 19:56 | 18° below |
| Day length | 9 h 54 min | |
Sun path diagram for Isil’kul’
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 58.5° at solar noon in Isil’kul’; on the December solstice only 11.7°. Sunrise swings from 45° NE in June to 132° SE in December — a 88° 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 | 09:23 | 13:26 | 17:29 | 8 h 06 min | 15.3° |
| February | 08:24 | 13:28 | 18:33 | 10 h 09 min | 24.6° |
| March | 07:15 | 13:22 | 19:29 | 12 h 15 min | 35.4° |
| April | 05:58 | 13:13 | 20:30 | 14 h 32 min | 47.0° |
| May | 04:58 | 13:11 | 21:25 | 16 h 27 min | 55.3° |
| June | 04:36 | 13:16 | 21:57 | 17 h 21 min | 58.5° |
| July | 05:05 | 13:21 | 21:36 | 16 h 31 min | 55.5° |
| August | 06:00 | 13:17 | 20:34 | 14 h 34 min | 47.2° |
| September | 06:58 | 13:07 | 19:16 | 12 h 19 min | 35.8° |
| October | 07:55 | 12:59 | 18:02 | 10 h 07 min | 24.4° |
| November | 08:57 | 13:00 | 17:03 | 8 h 06 min | 15.2° |
| December | 09:37 | 13:12 | 16:48 | 7 h 11 min | 11.7° |
A year of daylight in Isil’kul’
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 Isil’kul’
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: 1337 kWh per kWp.
77°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 | November kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 986 | 74% | 0.62 | 10.4× |
| 15° | 1170 | 87% | 0.99 | 5.7× |
| 30° | 1289 | 96% | 1.32 | 4.1× |
| 45° | 1337 | 100% | 1.58 | 3.2× |
| 47° year-round best | 1337 | 100% | 1.61 | 3.1× |
| 55° = latitude | 1327 | 99% | 1.70 | 3.0× |
| 60° | 1310 | 98% | 1.75 | 3.0× |
| 70° | 1252 | 94% | 1.80 | 2.8× |
| 77° off-grid best | 1194 | 89% | 1.82 | 2.8× |
| 90° | 1050 | 79% | 1.78 | 2.7× |
A fixed array in Isil’kul’ produces the most over a year at 47°. The design month for an off-grid system is November: at 77° it makes 1.82 kWh per kWp a day, 13% more than at 47°, and costs 11% of the yearly total. Why steep panels win winter.
Off-grid solar in Isil’kul’ 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 | 0.96 | 2.99 | 2.90 | 2.52 | -19.3 °C |
| February snow | 2.02 | 4.44 | 4.25 | 3.90 | -16.0 °C |
| March snow | 3.53 | 5.55 | 5.14 | 5.02 | -6.9 °C |
| April | 4.58 | 4.81 | 4.28 | 4.80 | 3.6 °C |
| May | 5.71 | 4.75 | 4.08 | 4.97 | 12.0 °C |
| June | 6.01 | 4.46 | 3.74 | 4.73 | 17.8 °C |
| July | 5.65 | 4.39 | 3.66 | 4.54 | 19.6 °C |
| August | 4.56 | 4.29 | 3.60 | 4.20 | 17.9 °C |
| September | 3.15 | 3.94 | 3.41 | 3.63 | 10.9 °C |
| October | 1.67 | 2.81 | 2.50 | 2.46 | 2.4 °C |
| November snow | 0.79 | 1.96 | 1.80 | 1.61 | -7.4 °C |
| December snow | 0.62 | 1.98 | 1.88 | 1.62 | -16.2 °C |
| Year | 3.28 avg | 3.86 avg | 1252 kWh | 1337 kWh |
Sizing example. To run a 1 kWh-per-day load through November on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 650 Wp of panels at 70°, versus 730 Wp at 47°. The steep array is 11% smaller for the same winter. Size your own system.
Row spacing in Isil’kul’
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.
13.3 mrow pitch at 70°
11.2 mrow pitch at 47°
How Isil’kul’ compares in Russia
Against the other 979 places in Russia with climate data, for a fixed array at its best angle.
342ndof 980 places in Russia for sunshine, shared: 3.28 peak sun hours a day on flat ground.
+12%solar energy a year compared with the average place in Russia: 1,337 against 1,196 kWh per kWp.
−12 mindaylight on the longest day, compared with Moscow: 17 h 21 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); Isil’kul’ ranks joint 342nd. In its darkest month, November, 1 kWp of off-grid panels at 70° makes 1.81 kWh a day here, against 1.31 kWh on average in Russia. The shortest day lasts 7 h 11 min, +11 min compared with Moscow.
Solar forecast for Isil’kul’, 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 Isil’kul’: 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.