Kyiv Oblast · Ukraine · 50.08° N · 29.92° E
Solar position in Fastiv
Sun position, daylight and the best solar panel angle for Fastiv — computed for 50.08° N, 29.92° E, 217 m above sea level.
The sun right now
Sun in Fastiv today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:48 | sun 18° below horizon |
| Nautical dawn | 06:25 | 12° below |
| Civil dawn | 07:03 | 6° below |
| Sunrise | 07:36 | 107° ESE |
| Golden hour ends | 08:22 | sun 6° up |
| Solar noon | 12:44 | 28.1° high |
| Golden hour starts | 17:05 | sun 6° up |
| Sunset | 17:51 | 252° WSW |
| Civil dusk | 18:24 | 6° below |
| Nautical dusk | 19:02 | 12° below |
| Astronomical dusk | 19:39 | 18° below |
| Day length | 10 h 15 min | |
Sun path diagram for Fastiv
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 63.4° at solar noon in Fastiv; on the December solstice only 16.5°. Sunrise swings from 50° NE in June to 127° SE in December — a 77° 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 | 07:47 | 12:11 | 16:35 | 8 h 48 min | 20.1° |
| February | 07:00 | 12:14 | 17:28 | 10 h 29 min | 29.5° |
| March | 06:01 | 12:07 | 18:14 | 12 h 13 min | 40.3° |
| April | 05:55 | 12:59 | 20:03 | 14 h 08 min | 51.9° |
| May | 05:06 | 12:57 | 20:48 | 15 h 41 min | 60.2° |
| June | 04:50 | 13:02 | 21:13 | 16 h 23 min | 63.4° |
| July | 05:14 | 13:06 | 20:58 | 15 h 44 min | 60.4° |
| August | 05:58 | 13:03 | 20:07 | 14 h 09 min | 52.0° |
| September | 06:44 | 12:53 | 19:01 | 12 h 16 min | 40.6° |
| October | 07:31 | 12:44 | 17:57 | 10 h 26 min | 29.2° |
| November | 07:22 | 11:45 | 16:09 | 8 h 47 min | 20.0° |
| December | 07:56 | 11:58 | 16:00 | 8 h 04 min | 16.5° |
A year of daylight in Fastiv
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 Fastiv
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
38°collects the most energy over a year: 1205 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° | 995 | 83% | 0.49 | 10.3× |
| 15° | 1127 | 93% | 0.74 | 7.0× |
| 30° | 1196 | 99% | 0.96 | 5.3× |
| 38° year-round best | 1205 | 100% | 1.06 | 4.6× |
| 45° | 1198 | 99% | 1.14 | 4.1× |
| 50° = latitude | 1184 | 98% | 1.18 | 3.8× |
| 60° | 1134 | 94% | 1.25 | 3.3× |
| 70° | 1057 | 88% | 1.29 | 2.9× |
| 76° off-grid best | 999 | 83% | 1.29 | 2.7× |
| 90° | 833 | 69% | 1.26 | 2.2× |
A fixed array in Fastiv produces the most over a year at 38°. The design month for an off-grid system is December: at 76° it makes 1.29 kWh per kWp a day, 22% more than at 38°, and costs 17% of the yearly total. Why steep panels win winter.
Off-grid solar in Fastiv at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 38° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 38° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.88 | 1.85 | 1.69 | 1.43 | -5.9 °C |
| February snow | 1.67 | 2.79 | 2.55 | 2.31 | -4.4 °C |
| March | 3.00 | 3.77 | 3.39 | 3.54 | 1.1 °C |
| April | 4.46 | 4.30 | 3.75 | 4.41 | 8.5 °C |
| May | 5.63 | 4.33 | 3.67 | 4.81 | 15.0 °C |
| June | 6.15 | 4.24 | 3.54 | 4.89 | 19.0 °C |
| July | 5.91 | 4.27 | 3.53 | 4.76 | 21.6 °C |
| August | 5.14 | 4.49 | 3.73 | 4.61 | 21.0 °C |
| September | 3.57 | 4.13 | 3.51 | 3.82 | 15.2 °C |
| October | 2.04 | 3.10 | 2.70 | 2.64 | 8.0 °C |
| November | 0.89 | 1.60 | 1.41 | 1.28 | 2.0 °C |
| December snow | 0.63 | 1.43 | 1.29 | 1.06 | -3.6 °C |
| Year | 3.34 avg | 3.36 avg | 1057 kWh | 1205 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 920 Wp of panels at 70°, versus 1,110 Wp at 38°. The steep array is 17% smaller for the same winter. Size your own system.
Row spacing in Fastiv
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.
8.6 mrow pitch at 70°
6.8 mrow pitch at 38°
How Fastiv compares in Ukraine
Against the other 271 places in Ukraine with climate data, for a fixed array at its best angle.
182ndof 272 places in Ukraine for sunshine, shared: 3.34 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in Ukraine: 1,205 against 1,242 kWh per kWp.
−4 mindaylight on the longest day, compared with Kyiv: 16 h 23 min against 16 h 27 min.
38°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); Fastiv ranks joint 182nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.29 kWh a day here, against 1.38 kWh on average in Ukraine. The shortest day lasts 8 h 04 min, +4 min compared with Kyiv.
Solar forecast for Fastiv, 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 Fastiv
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Places near Fastiv
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A free, live card for Fastiv: 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.