Bilecik · Turkey · 39.91° N · 30.04° E
Solar position in Bozüyük
Sun position, daylight and the best solar panel angle for Bozüyük — computed for 39.91° N, 30.04° E, 752 m above sea level.
The sun right now
Sun in Bozüyük today
Sunday, 25 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:50 | sun 18° below horizon |
| Nautical dawn | 06:21 | 12° below |
| Civil dawn | 06:53 | 6° below |
| Sunrise | 07:20 | 105° ESE |
| Golden hour ends | 07:58 | sun 6° up |
| Solar noon | 12:43 | 37.9° high |
| Golden hour starts | 17:29 | sun 6° up |
| Sunset | 18:06 | 255° WSW |
| Civil dusk | 18:34 | 6° below |
| Nautical dusk | 19:05 | 12° below |
| Astronomical dusk | 19:37 | 18° below |
| Day length | 10 h 46 min | |
Sun path diagram for Bozüyük
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 73.5° at solar noon in Bozüyük; on the December solstice only 26.7°. Sunrise swings from 58° ENE in June to 120° ESE in December — a 62° 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 | 08:16 | 13:11 | 18:05 | 9 h 49 min | 30.3° |
| February | 07:44 | 13:13 | 18:42 | 10 h 58 min | 39.6° |
| March | 07:02 | 13:07 | 19:12 | 12 h 11 min | 50.4° |
| April | 06:13 | 12:58 | 19:44 | 13 h 30 min | 62.0° |
| May | 05:39 | 12:56 | 20:13 | 14 h 33 min | 70.3° |
| June | 05:31 | 13:01 | 20:31 | 15 h 00 min | 73.5° |
| July | 05:48 | 13:06 | 20:23 | 14 h 35 min | 70.5° |
| August | 06:17 | 13:02 | 19:48 | 13 h 31 min | 62.1° |
| September | 06:46 | 12:52 | 18:58 | 12 h 13 min | 50.7° |
| October | 07:16 | 12:44 | 18:12 | 10 h 56 min | 39.3° |
| November | 07:51 | 12:45 | 17:39 | 9 h 48 min | 30.2° |
| December | 08:17 | 12:57 | 17:37 | 9 h 20 min | 26.7° |
A year of daylight in Bozüyük
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 Bozüyük
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
32°collects the most energy over a year: 1513 kWh per kWp.
63°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° | 1319 | 87% | 1.34 | 4.5× |
| 15° | 1459 | 96% | 1.87 | 3.2× |
| 30° | 1513 | 100% | 2.29 | 2.5× |
| 32° year-round best | 1513 | 100% | 2.34 | 2.4× |
| 40° = latitude | 1500 | 99% | 2.50 | 2.1× |
| 45° | 1479 | 98% | 2.57 | 2.0× |
| 60° | 1362 | 90% | 2.69 | 1.7× |
| 63° off-grid best | 1329 | 88% | 2.69 | 1.6× |
| 70° | 1241 | 82% | 2.67 | 1.6× |
| 90° | 918 | 61% | 2.42 | 1.8× |
A fixed array in Bozüyük produces the most over a year at 32°. The design month for an off-grid system is December: at 63° it makes 2.69 kWh per kWp a day, 15% more than at 32°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Bozüyük at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 32° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 32° | Mean temp. |
|---|---|---|---|---|---|
| January | 1.82 | 2.96 | 2.66 | 2.42 | 0.7 °C |
| February | 2.62 | 3.44 | 3.07 | 3.08 | 2.4 °C |
| March | 3.76 | 3.96 | 3.50 | 3.92 | 5.6 °C |
| April | 5.02 | 4.04 | 3.50 | 4.57 | 9.8 °C |
| May | 6.09 | 3.90 | 3.31 | 4.96 | 14.9 °C |
| June | 7.04 | 3.87 | 3.23 | 5.34 | 19.1 °C |
| July | 7.42 | 4.20 | 3.47 | 5.64 | 22.1 °C |
| August | 6.55 | 4.70 | 3.89 | 5.48 | 22.4 °C |
| September | 5.01 | 4.93 | 4.15 | 4.88 | 18.4 °C |
| October | 3.41 | 4.44 | 3.82 | 3.89 | 13.0 °C |
| November | 2.34 | 3.98 | 3.51 | 3.17 | 7.4 °C |
| December | 1.65 | 2.99 | 2.67 | 2.34 | 2.5 °C |
| Year | 4.40 avg | 3.95 avg | 1241 kWh | 1513 kWh |
Sizing example. To run a 1 kWh-per-day load through January on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 440 Wp of panels at 70°, versus 500 Wp at 32°. The steep array is 12% smaller for the same winter. Size your own system.
Row spacing in Bozüyük
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.
5.0 mrow pitch at 70°
4.1 mrow pitch at 32°
How Bozüyük compares in Turkey
Against the other 415 places in Turkey with climate data, for a fixed array at its best angle.
268thof 416 places in Turkey for sunshine, shared: 4.40 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in Turkey: 1,513 against 1,567 kWh per kWp.
−7 mindaylight on the longest day, compared with Istanbul: 15 h 00 min against 15 h 08 min.
32°best year-round tilt here; across Turkey it runs from 29° in Antakya to 36° in Ardahan.
Of the 416 places in Turkey, Sarigerme and 2 other places get the most sun (5.11 peak sun hours a day) and Hopa the least (3.80); Bozüyük ranks joint 268th. In its darkest month, January, 1 kWp of off-grid panels at 70° makes 2.66 kWh a day here, against 2.84 kWh on average in Turkey. The shortest day lasts 9 h 20 min, +7 min compared with Istanbul.
Solar forecast for Bozüyük, 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 Bozüyük: 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.