Tatarstan Republic · Russia · 56.09° N · 49.88° E
Solar position in Arsk
Sun position, daylight and the best solar panel angle for Arsk — computed for 56.09° N, 49.88° E, 128 m above sea level.
The sun right now
Sun in Arsk today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:25 | sun 18° below horizon |
| Nautical dawn | 05:08 | 12° below |
| Civil dawn | 05:51 | 6° below |
| Sunrise | 06:30 | 110° ESE |
| Golden hour ends | 07:24 | sun 6° up |
| Solar noon | 11:24 | 22.1° high |
| Golden hour starts | 15:23 | sun 6° up |
| Sunset | 16:18 | 250° WSW |
| Civil dusk | 16:56 | 6° below |
| Nautical dusk | 17:40 | 12° below |
| Astronomical dusk | 18:23 | 18° below |
| Day length | 9 h 48 min | |
Sun path diagram for Arsk
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 57.4° at solar noon in Arsk; on the December solstice only 10.6°. Sunrise swings from 43° NE in June to 134° SE in December — a 91° 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 | 07:54 | 11:52 | 15:49 | 7 h 55 min | 14.1° |
| February | 06:52 | 11:54 | 16:56 | 10 h 04 min | 23.4° |
| March | 05:40 | 11:48 | 17:55 | 12 h 15 min | 34.2° |
| April | 04:20 | 11:39 | 18:59 | 14 h 39 min | 45.8° |
| May | 03:17 | 11:37 | 19:58 | 16 h 41 min | 54.1° |
| June | 02:52 | 11:42 | 20:31 | 17 h 39 min | 57.4° |
| July | 03:23 | 11:46 | 20:08 | 16 h 45 min | 54.4° |
| August | 04:22 | 11:43 | 19:03 | 14 h 41 min | 46.0° |
| September | 05:23 | 11:33 | 17:42 | 12 h 19 min | 34.6° |
| October | 06:24 | 11:24 | 16:25 | 10 h 01 min | 23.2° |
| November | 07:29 | 11:26 | 15:22 | 7 h 54 min | 14.0° |
| December | 08:10 | 11:38 | 15:06 | 6 h 56 min | 10.6° |
A year of daylight in Arsk
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 Arsk
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
44°collects the most energy over a year: 1155 kWh per kWp.
81°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° | 898 | 78% | 0.27 | 18.3× |
| 15° | 1042 | 90% | 0.49 | 10.5× |
| 30° | 1130 | 98% | 0.69 | 7.4× |
| 44° year-round best | 1155 | 100% | 0.85 | 5.8× |
| 45° | 1155 | 100% | 0.86 | 5.7× |
| 56° = latitude | 1134 | 98% | 0.95 | 4.8× |
| 60° | 1118 | 97% | 0.97 | 4.6× |
| 70° | 1059 | 92% | 1.02 | 4.0× |
| 81° off-grid best | 966 | 84% | 1.04 | 3.8× |
| 90° | 870 | 75% | 1.02 | 3.7× |
A fixed array in Arsk produces the most over a year at 44°. The design month for an off-grid system is December: at 81° it makes 1.04 kWh per kWp a day, 22% more than at 44°, and costs 16% of the yearly total. Why steep panels win winter.
Off-grid solar in Arsk at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 44° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 44° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.60 | 1.70 | 1.59 | 1.35 | -14.0 °C |
| February snow | 1.48 | 3.12 | 2.94 | 2.64 | -12.8 °C |
| March snow | 2.86 | 4.41 | 4.06 | 3.91 | -5.6 °C |
| April | 4.15 | 4.40 | 3.91 | 4.39 | 3.3 °C |
| May | 5.53 | 4.68 | 4.01 | 4.92 | 12.7 °C |
| June | 5.96 | 4.51 | 3.80 | 4.85 | 16.7 °C |
| July | 5.79 | 4.58 | 3.82 | 4.79 | 19.6 °C |
| August | 4.49 | 4.31 | 3.62 | 4.23 | 17.7 °C |
| September | 2.79 | 3.50 | 3.01 | 3.19 | 11.6 °C |
| October | 1.32 | 2.16 | 1.90 | 1.85 | 3.5 °C |
| November snow | 0.55 | 1.28 | 1.15 | 1.00 | -4.5 °C |
| December snow | 0.37 | 1.11 | 1.02 | 0.85 | -11.9 °C |
| Year | 3.00 avg | 3.31 avg | 1059 kWh | 1155 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 1,160 Wp of panels at 70°, versus 1,390 Wp at 44°. The steep array is 17% smaller for the same winter. Size your own system.
Row spacing in Arsk
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.
15.3 mrow pitch at 70°
12.3 mrow pitch at 44°
How Arsk compares in Russia
Against the other 979 places in Russia with climate data, for a fixed array at its best angle.
530thof 980 places in Russia for sunshine, shared: 3.00 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in Russia: 1,155 against 1,196 kWh per kWp.
+5 mindaylight on the longest day, compared with Moscow: 17 h 39 min against 17 h 34 min.
44°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); Arsk ranks joint 530th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.02 kWh a day here, against 1.31 kWh on average in Russia. The shortest day lasts 6 h 56 min, −5 min compared with Moscow.
Solar forecast for Arsk, 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 Arsk
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Places near Arsk
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A free, live card for Arsk: 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.