Penza Oblast · Russia · 52.46° N · 44.22° E
Solar position in Serdobsk
Sun position, daylight and the best solar panel angle for Serdobsk — computed for 52.46° N, 44.22° E, 191 m above sea level.
The sun right now
Sun in Serdobsk today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:49 | sun 18° below horizon |
| Nautical dawn | 05:29 | 12° below |
| Civil dawn | 06:09 | 6° below |
| Sunrise | 06:44 | 108° ESE |
| Golden hour ends | 07:33 | sun 6° up |
| Solar noon | 11:47 | 25.8° high |
| Golden hour starts | 16:00 | sun 6° up |
| Sunset | 16:49 | 251° WSW |
| Civil dusk | 17:24 | 6° below |
| Nautical dusk | 18:04 | 12° below |
| Astronomical dusk | 18:43 | 18° below |
| Day length | 10 h 05 min | |
Sun path diagram for Serdobsk
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 61.0° at solar noon in Serdobsk; on the December solstice only 14.2°. 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 | 08:00 | 12:14 | 16:29 | 8 h 29 min | 17.7° |
| February | 07:07 | 12:17 | 17:27 | 10 h 20 min | 27.1° |
| March | 06:03 | 12:10 | 18:17 | 12 h 14 min | 37.9° |
| April | 04:52 | 12:02 | 19:11 | 14 h 19 min | 49.5° |
| May | 03:58 | 11:59 | 20:01 | 16 h 03 min | 57.8° |
| June | 03:40 | 12:04 | 20:29 | 16 h 49 min | 61.0° |
| July | 04:06 | 12:09 | 20:11 | 16 h 05 min | 58.0° |
| August | 04:55 | 12:06 | 19:16 | 14 h 21 min | 49.6° |
| September | 05:47 | 11:55 | 18:04 | 12 h 17 min | 38.2° |
| October | 06:38 | 11:47 | 16:55 | 10 h 17 min | 26.8° |
| November | 07:34 | 11:48 | 16:02 | 8 h 28 min | 17.6° |
| December | 08:11 | 12:01 | 15:50 | 7 h 40 min | 14.2° |
A year of daylight in Serdobsk
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 Serdobsk
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
42°collects the most energy over a year: 1261 kWh per kWp.
78°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° | 1001 | 79% | 0.44 | 11.4× |
| 15° | 1152 | 91% | 0.71 | 7.4× |
| 30° | 1240 | 98% | 0.95 | 5.4× |
| 42° year-round best | 1261 | 100% | 1.10 | 4.5× |
| 45° | 1259 | 100% | 1.13 | 4.3× |
| 52° = latitude | 1245 | 99% | 1.20 | 3.9× |
| 60° | 1211 | 96% | 1.26 | 3.7× |
| 70° | 1142 | 91% | 1.30 | 3.5× |
| 78° off-grid best | 1067 | 85% | 1.31 | 3.4× |
| 90° | 928 | 74% | 1.29 | 3.2× |
A fixed array in Serdobsk produces the most over a year at 42°. The design month for an off-grid system is December: at 78° it makes 1.31 kWh per kWp a day, 19% more than at 42°, and costs 15% of the yearly total. Why steep panels win winter.
Off-grid solar in Serdobsk at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 42° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 42° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.93 | 2.23 | 2.09 | 1.79 | -11.6 °C |
| February snow | 1.98 | 3.57 | 3.35 | 3.06 | -10.5 °C |
| March snow | 3.43 | 4.96 | 4.55 | 4.44 | -4.2 °C |
| April | 4.32 | 4.32 | 3.81 | 4.39 | 5.6 °C |
| May | 5.68 | 4.53 | 3.86 | 4.90 | 14.3 °C |
| June | 6.16 | 4.38 | 3.67 | 4.89 | 18.1 °C |
| July | 6.04 | 4.50 | 3.72 | 4.86 | 21.5 °C |
| August | 4.99 | 4.54 | 3.78 | 4.55 | 20.4 °C |
| September | 3.35 | 4.07 | 3.48 | 3.74 | 13.7 °C |
| October | 1.75 | 2.80 | 2.47 | 2.41 | 5.4 °C |
| November snow | 0.78 | 1.65 | 1.48 | 1.32 | -1.9 °C |
| December snow | 0.57 | 1.42 | 1.30 | 1.10 | -8.6 °C |
| Year | 3.34 avg | 3.58 avg | 1142 kWh | 1261 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 900 Wp of panels at 70°, versus 1,070 Wp at 42°. The steep array is 15% smaller for the same winter. Size your own system.
Row spacing in Serdobsk
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.
10.4 mrow pitch at 70°
8.4 mrow pitch at 42°
How Serdobsk compares in Russia
Against the other 979 places in Russia with climate data, for a fixed array at its best angle.
309thof 980 places in Russia for sunshine, shared: 3.34 peak sun hours a day on flat ground.
+5%solar energy a year compared with the average place in Russia: 1,261 against 1,196 kWh per kWp.
−44 mindaylight on the longest day, compared with Moscow: 16 h 49 min against 17 h 34 min.
42°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); Serdobsk ranks joint 309th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.30 kWh a day here, against 1.31 kWh on average in Russia. The shortest day lasts 7 h 40 min, +39 min compared with Moscow.
Solar forecast for Serdobsk, 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 Serdobsk: 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.