Lviv · Ukraine · 49.79° N · 23.15° E
Solar position in Mostyska
Sun position, daylight and the best solar panel angle for Mostyska — computed for 49.79° N, 23.15° E, 210 m above sea level.
The sun right now
Sun in Mostyska today
Sunday, 25 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:16 | sun 18° below horizon |
| Nautical dawn | 05:54 | 12° below |
| Civil dawn | 06:31 | 6° below |
| Sunrise | 07:04 | 108° ESE |
| Golden hour ends | 07:50 | sun 6° up |
| Solar noon | 12:11 | 28.1° high |
| Golden hour starts | 16:31 | sun 6° up |
| Sunset | 17:17 | 252° WSW |
| Civil dusk | 17:50 | 6° below |
| Nautical dusk | 18:28 | 12° below |
| Astronomical dusk | 19:05 | 18° below |
| Day length | 10 h 13 min | |
Sun path diagram for Mostyska
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 63.7° at solar noon in Mostyska; on the December solstice only 16.8°. Sunrise swings from 51° NE in June to 127° SE in December — a 76° 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 | 08:13 | 12:38 | 17:03 | 8 h 50 min | 20.4° |
| February | 07:26 | 12:41 | 17:56 | 10 h 30 min | 29.8° |
| March | 06:28 | 12:34 | 18:41 | 12 h 13 min | 40.5° |
| April | 06:23 | 13:26 | 20:29 | 14 h 07 min | 52.2° |
| May | 05:34 | 13:24 | 21:13 | 15 h 39 min | 60.4° |
| June | 05:19 | 13:29 | 21:39 | 16 h 20 min | 63.7° |
| July | 05:42 | 13:33 | 21:24 | 15 h 41 min | 60.6° |
| August | 06:26 | 13:30 | 20:33 | 14 h 08 min | 52.2° |
| September | 07:12 | 13:20 | 19:27 | 12 h 16 min | 40.8° |
| October | 07:58 | 13:11 | 18:24 | 10 h 27 min | 29.5° |
| November | 07:48 | 12:13 | 16:37 | 8 h 49 min | 20.3° |
| December | 08:22 | 12:25 | 16:28 | 8 h 06 min | 16.8° |
A year of daylight in Mostyska
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 Mostyska
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
39°collects the most energy over a year: 1129 kWh per kWp.
76°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° | 927 | 82% | 0.52 | 8.6× |
| 15° | 1052 | 93% | 0.80 | 5.8× |
| 30° | 1118 | 99% | 1.05 | 4.3× |
| 39° year-round best | 1129 | 100% | 1.17 | 3.7× |
| 45° | 1124 | 100% | 1.24 | 3.4× |
| 50° = latitude | 1112 | 98% | 1.29 | 3.2× |
| 60° | 1067 | 95% | 1.36 | 2.8× |
| 70° | 997 | 88% | 1.40 | 2.5× |
| 76° off-grid best | 944 | 84% | 1.41 | 2.3× |
| 90° | 792 | 70% | 1.38 | 1.9× |
A fixed array in Mostyska produces the most over a year at 39°. The design month for an off-grid system is December: at 76° it makes 1.41 kWh per kWp a day, 21% more than at 39°, and costs 16% of the yearly total. Why steep panels win winter.
Off-grid solar in Mostyska at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 39° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 39° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.88 | 1.84 | 1.67 | 1.43 | -4.4 °C |
| February snow | 1.59 | 2.65 | 2.41 | 2.20 | -2.8 °C |
| March | 2.79 | 3.43 | 3.06 | 3.23 | 2.1 °C |
| April | 4.15 | 3.94 | 3.43 | 4.05 | 8.5 °C |
| May | 5.03 | 3.86 | 3.28 | 4.28 | 13.9 °C |
| June | 5.46 | 3.79 | 3.17 | 4.33 | 17.6 °C |
| July | 5.35 | 3.86 | 3.21 | 4.30 | 19.7 °C |
| August | 4.84 | 4.19 | 3.50 | 4.32 | 19.5 °C |
| September | 3.37 | 3.81 | 3.25 | 3.57 | 14.3 °C |
| October | 2.05 | 3.11 | 2.72 | 2.66 | 8.3 °C |
| November | 1.02 | 1.91 | 1.68 | 1.53 | 3.3 °C |
| December snow | 0.68 | 1.56 | 1.40 | 1.17 | -2.3 °C |
| Year | 3.11 avg | 3.17 avg | 997 kWh | 1129 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 840 Wp of panels at 70°, versus 1,010 Wp at 39°. The steep array is 17% smaller for the same winter. Size your own system.
Row spacing in Mostyska
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.
8.4 mrow pitch at 70°
6.8 mrow pitch at 39°
How Mostyska compares in Ukraine
Against the other 271 places in Ukraine with climate data, for a fixed array at its best angle.
270thof 272 places in Ukraine for sunshine, shared: 3.11 peak sun hours a day on flat ground.
−9%solar energy a year compared with the average place in Ukraine: 1,129 against 1,242 kWh per kWp.
−7 mindaylight on the longest day, compared with Kyiv: 16 h 20 min against 16 h 27 min.
39°best year-round tilt here; across Ukraine it runs from 33° in Sevastopol to 40° in Novhorod-Siverskyi.
Of the 272 places in Ukraine, Balaklava and one other place get the most sun (4.05 peak sun hours a day) and Mostyska and 2 other places the least (3.11); Mostyska ranks joint 270th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.40 kWh a day here, against 1.38 kWh on average in Ukraine. The shortest day lasts 8 h 06 min, +6 min compared with Kyiv.
Solar forecast for Mostyska, 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 Mostyska
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A free, live card for Mostyska: 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.