Irkutsk Oblast · Russia · 52.56° N · 103.91° E
Solar position in Angarsk
Sun position, daylight and the best solar panel angle for Angarsk — computed for 52.56° N, 103.91° E, 430 m above sea level.
The sun right now
Sun in Angarsk today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:52 | sun 18° below horizon |
| Nautical dawn | 06:32 | 12° below |
| Civil dawn | 07:11 | 6° below |
| Sunrise | 07:47 | 109° ESE |
| Golden hour ends | 08:36 | sun 6° up |
| Solar noon | 12:48 | 25.4° high |
| Golden hour starts | 16:59 | sun 6° up |
| Sunset | 17:48 | 251° WSW |
| Civil dusk | 18:24 | 6° below |
| Nautical dusk | 19:03 | 12° below |
| Astronomical dusk | 19:43 | 18° below |
| Day length | 10 h 02 min | |
Sun path diagram for Angarsk
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 60.9° at solar noon in Angarsk; on the December solstice only 14.1°. Sunrise swings from 48° NE in June to 129° SE in December — a 82° 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 | 09:02 | 13:15 | 17:29 | 8 h 28 min | 17.6° |
| February | 08:09 | 13:18 | 18:27 | 10 h 19 min | 26.9° |
| March | 07:05 | 13:11 | 19:18 | 12 h 13 min | 37.7° |
| April | 05:54 | 13:03 | 20:13 | 14 h 19 min | 49.3° |
| May | 04:59 | 13:01 | 21:02 | 16 h 03 min | 57.6° |
| June | 04:40 | 13:06 | 21:31 | 16 h 51 min | 60.9° |
| July | 05:06 | 13:10 | 21:13 | 16 h 07 min | 57.9° |
| August | 05:56 | 13:07 | 20:17 | 14 h 22 min | 49.6° |
| September | 06:47 | 12:57 | 19:06 | 12 h 18 min | 38.2° |
| October | 07:40 | 12:48 | 17:57 | 10 h 17 min | 26.8° |
| November | 08:36 | 12:49 | 17:03 | 8 h 27 min | 17.6° |
| December | 09:12 | 13:02 | 16:51 | 7 h 39 min | 14.1° |
A year of daylight in Angarsk
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 Angarsk
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
48°collects the most energy over a year: 1418 kWh per kWp.
80°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° | 1034 | 73% | 0.66 | 7.3× |
| 15° | 1231 | 87% | 1.22 | 4.1× |
| 30° | 1361 | 96% | 1.73 | 2.9× |
| 45° | 1416 | 100% | 2.13 | 2.4× |
| 48° year-round best | 1418 | 100% | 2.19 | 2.4× |
| 53° = latitude | 1413 | 100% | 2.29 | 2.3× |
| 60° | 1393 | 98% | 2.40 | 2.2× |
| 70° | 1334 | 94% | 2.50 | 2.1× |
| 80° off-grid best | 1244 | 88% | 2.53 | 2.0× |
| 90° | 1126 | 79% | 2.49 | 2.1× |
A fixed array in Angarsk produces the most over a year at 48°. The design month for an off-grid system is December: at 80° it makes 2.53 kWh per kWp a day, 15% more than at 48°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Angarsk at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 48° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 48° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.19 | 3.54 | 3.44 | 3.05 | -20.5 °C |
| February snow | 2.26 | 4.83 | 4.65 | 4.33 | -17.5 °C |
| March snow | 3.69 | 5.64 | 5.25 | 5.19 | -8.1 °C |
| April | 4.68 | 4.67 | 4.17 | 4.74 | 2.0 °C |
| May | 5.47 | 4.37 | 3.79 | 4.65 | 9.0 °C |
| June | 5.85 | 4.18 | 3.52 | 4.48 | 17.0 °C |
| July | 5.40 | 4.04 | 3.36 | 4.21 | 19.4 °C |
| August | 4.58 | 4.13 | 3.49 | 4.11 | 16.5 °C |
| September | 3.42 | 4.16 | 3.63 | 3.91 | 9.0 °C |
| October snow | 2.18 | 3.78 | 3.41 | 3.32 | 0.2 °C |
| November snow | 1.20 | 2.92 | 2.73 | 2.47 | -9.7 °C |
| December snow | 0.83 | 2.59 | 2.50 | 2.19 | -18.1 °C |
| Year | 3.40 avg | 4.07 avg | 1334 kWh | 1418 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 470 Wp of panels at 70°, versus 540 Wp at 48°. The steep array is 12% smaller for the same winter. Size your own system.
Row spacing in Angarsk
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.
10.5 mrow pitch at 70°
9.1 mrow pitch at 48°
How Angarsk compares in Russia
Against the other 979 places in Russia with climate data, for a fixed array at its best angle.
277thof 980 places in Russia for sunshine, shared: 3.40 peak sun hours a day on flat ground.
+19%solar energy a year compared with the average place in Russia: 1,418 against 1,196 kWh per kWp.
−43 mindaylight on the longest day, compared with Moscow: 16 h 51 min against 17 h 34 min.
48°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); Angarsk ranks joint 277th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.50 kWh a day here, against 1.31 kWh on average in Russia. The shortest day lasts 7 h 39 min, +38 min compared with Moscow.
Solar forecast for Angarsk, 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 Angarsk
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Places near Angarsk
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A free, live card for Angarsk: 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.