Rostov · Russia · 47.22° N · 39.71° E
Solar position in Rostov-on-Don
Sun position, daylight and the best solar panel angle for Rostov-on-Don — computed for 47.22° N, 39.71° E, 54 m above sea level.
The sun right now
Sun in Rostov-on-Don today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:09 | sun 18° below horizon |
| Nautical dawn | 05:45 | 12° below |
| Civil dawn | 06:20 | 6° below |
| Sunrise | 06:52 | 106° ESE |
| Golden hour ends | 07:35 | sun 6° up |
| Solar noon | 12:05 | 31.0° high |
| Golden hour starts | 16:34 | sun 6° up |
| Sunset | 17:17 | 253° WSW |
| Civil dusk | 17:49 | 6° below |
| Nautical dusk | 18:24 | 12° below |
| Astronomical dusk | 19:00 | 18° below |
| Day length | 10 h 26 min | |
Sun path diagram for Rostov-on-Don
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 66.2° at solar noon in Rostov-on-Don; on the December solstice only 19.4°. Sunrise swings from 53° NE in June to 125° SE in December — a 72° 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 | 07:58 | 12:32 | 17:06 | 9 h 08 min | 23.0° |
| February | 07:16 | 12:35 | 17:53 | 10 h 38 min | 32.3° |
| March | 06:22 | 12:28 | 18:34 | 12 h 12 min | 43.1° |
| April | 05:22 | 12:20 | 19:18 | 13 h 56 min | 54.7° |
| May | 04:38 | 12:17 | 19:57 | 15 h 19 min | 63.0° |
| June | 04:25 | 12:22 | 20:20 | 15 h 56 min | 66.2° |
| July | 04:46 | 12:27 | 20:07 | 15 h 21 min | 63.2° |
| August | 05:25 | 12:24 | 19:22 | 13 h 57 min | 54.8° |
| September | 06:06 | 12:14 | 18:21 | 12 h 15 min | 43.4° |
| October | 06:47 | 12:05 | 17:23 | 10 h 35 min | 32.0° |
| November | 07:33 | 12:06 | 16:40 | 9 h 07 min | 22.9° |
| December | 08:04 | 12:19 | 16:33 | 8 h 29 min | 19.4° |
A year of daylight in Rostov-on-Don
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 Rostov-on-Don
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
36°collects the most energy over a year: 1295 kWh per kWp.
70°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° | 1089 | 84% | 0.64 | 8.3× |
| 15° | 1224 | 94% | 0.93 | 5.8× |
| 30° | 1289 | 100% | 1.17 | 4.5× |
| 36° year-round best | 1295 | 100% | 1.25 | 4.1× |
| 45° | 1283 | 99% | 1.35 | 3.6× |
| 47° = latitude | 1276 | 99% | 1.37 | 3.5× |
| 60° | 1204 | 93% | 1.45 | 3.0× |
| 70° off-grid best | 1115 | 86% | 1.47 | 2.7× |
| 90° | 862 | 67% | 1.40 | 2.2× |
A fixed array in Rostov-on-Don produces the most over a year at 36°. The design month for an off-grid system is December: at 70° it makes 1.47 kWh per kWp a day, 18% more than at 36°, and costs 14% of the yearly total. Why steep panels win winter.
Off-grid solar in Rostov-on-Don at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 36° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 36° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.00 | 1.94 | 1.76 | 1.49 | -3.6 °C |
| February snow | 1.86 | 3.02 | 2.74 | 2.48 | -2.6 °C |
| March | 3.00 | 3.51 | 3.12 | 3.34 | 3.1 °C |
| April | 4.68 | 4.30 | 3.73 | 4.51 | 10.0 °C |
| May | 6.03 | 4.41 | 3.71 | 5.05 | 17.2 °C |
| June | 6.56 | 4.27 | 3.52 | 5.10 | 22.2 °C |
| July | 6.41 | 4.36 | 3.55 | 5.03 | 25.3 °C |
| August | 5.78 | 4.82 | 3.94 | 5.03 | 25.1 °C |
| September | 4.19 | 4.71 | 3.96 | 4.37 | 18.5 °C |
| October | 2.46 | 3.63 | 3.14 | 3.08 | 10.5 °C |
| November | 1.25 | 2.27 | 2.00 | 1.80 | 3.4 °C |
| December snow | 0.81 | 1.64 | 1.47 | 1.25 | -1.5 °C |
| Year | 3.68 avg | 3.57 avg | 1115 kWh | 1295 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 800 Wp of panels at 70°, versus 940 Wp at 36°. The steep array is 15% smaller for the same winter. Size your own system.
Row spacing in Rostov-on-Don
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.
7.2 mrow pitch at 70°
5.7 mrow pitch at 36°
How Rostov-on-Don compares in Russia
Against the other 979 places in Russia with climate data, for a fixed array at its best angle.
165thof 980 places in Russia for sunshine, shared: 3.68 peak sun hours a day on flat ground.
+8%solar energy a year compared with the average place in Russia: 1,296 against 1,196 kWh per kWp.
−1 h 38 mindaylight on the longest day, compared with Moscow: 15 h 56 min against 17 h 34 min.
36°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); Rostov-on-Don ranks joint 165th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.47 kWh a day here, against 1.31 kWh on average in Russia. The shortest day lasts 8 h 29 min, +1 h 28 min compared with Moscow.
Solar forecast for Rostov-on-Don, 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 Rostov-on-Don: 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.