Turkey · 40.92° N · 38.39° E
Solar position in Giresun
Sun position, daylight and the best solar panel angle for Giresun — computed for 40.92° N, 38.39° E, 39 m above sea level.
The sun right now
Sun in Giresun today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:15 | sun 18° below horizon |
| Nautical dawn | 05:47 | 12° below |
| Civil dawn | 06:19 | 6° below |
| Sunrise | 06:47 | 105° ESE |
| Golden hour ends | 07:25 | sun 6° up |
| Solar noon | 12:10 | 37.3° high |
| Golden hour starts | 16:55 | sun 6° up |
| Sunset | 17:33 | 255° WSW |
| Civil dusk | 18:01 | 6° below |
| Nautical dusk | 18:33 | 12° below |
| Astronomical dusk | 19:05 | 18° below |
| Day length | 10 h 46 min | |
Sun path diagram for Giresun
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 72.5° at solar noon in Giresun; on the December solstice only 25.7°. Sunrise swings from 57° ENE in June to 121° ESE in December — a 64° 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 | 07:45 | 12:37 | 17:29 | 9 h 44 min | 29.3° |
| February | 07:12 | 12:40 | 18:07 | 10 h 55 min | 38.6° |
| March | 06:28 | 12:33 | 18:39 | 12 h 11 min | 49.4° |
| April | 05:38 | 12:25 | 19:12 | 13 h 33 min | 61.0° |
| May | 05:03 | 12:23 | 19:42 | 14 h 39 min | 69.3° |
| June | 04:54 | 12:28 | 20:01 | 15 h 07 min | 72.5° |
| July | 05:12 | 12:32 | 19:52 | 14 h 41 min | 69.5° |
| August | 05:42 | 12:29 | 19:16 | 13 h 34 min | 61.1° |
| September | 06:12 | 12:19 | 18:25 | 12 h 13 min | 49.7° |
| October | 06:44 | 12:10 | 17:37 | 10 h 53 min | 38.3° |
| November | 07:20 | 12:12 | 17:03 | 9 h 43 min | 29.2° |
| December | 07:47 | 12:24 | 17:01 | 9 h 14 min | 25.7° |
A year of daylight in Giresun
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 Giresun
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: 1383 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° | 1202 | 87% | 1.22 | 4.4× |
| 15° | 1330 | 96% | 1.70 | 3.2× |
| 30° | 1382 | 100% | 2.08 | 2.4× |
| 32° year-round best | 1383 | 100% | 2.13 | 2.4× |
| 41° = latitude | 1370 | 99% | 2.28 | 2.1× |
| 45° | 1355 | 98% | 2.34 | 2.0× |
| 60° | 1252 | 91% | 2.45 | 1.7× |
| 63° off-grid best | 1223 | 88% | 2.45 | 1.7× |
| 70° | 1145 | 83% | 2.44 | 1.6× |
| 90° | 857 | 62% | 2.22 | 1.6× |
A fixed array in Giresun produces the most over a year at 32°. The design month for an off-grid system is December: at 63° it makes 2.45 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 Giresun 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 | 1.73 | 2.80 | 2.50 | 2.28 | 1.7 °C |
| February | 2.50 | 3.25 | 2.90 | 2.91 | 2.4 °C |
| March | 3.44 | 3.56 | 3.15 | 3.53 | 5.1 °C |
| April | 4.67 | 3.83 | 3.33 | 4.29 | 8.6 °C |
| May | 5.71 | 3.77 | 3.21 | 4.72 | 13.5 °C |
| June | 6.53 | 3.75 | 3.14 | 5.04 | 18.1 °C |
| July | 6.45 | 3.87 | 3.20 | 5.02 | 21.0 °C |
| August | 5.72 | 4.24 | 3.51 | 4.84 | 21.8 °C |
| September | 4.58 | 4.55 | 3.82 | 4.47 | 18.7 °C |
| October | 3.07 | 3.94 | 3.37 | 3.44 | 14.2 °C |
| November | 2.08 | 3.51 | 3.07 | 2.78 | 8.6 °C |
| December | 1.52 | 2.75 | 2.44 | 2.13 | 4.1 °C |
| Year | 4.01 avg | 3.65 avg | 1145 kWh | 1383 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 480 Wp of panels at 70°, versus 550 Wp at 32°. The steep array is 13% smaller for the same winter. Size your own system.
Row spacing in Giresun
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.
5.2 mrow pitch at 70°
4.3 mrow pitch at 32°
How Giresun compares in Turkey
Against the other 415 places in Turkey with climate data, for a fixed array at its best angle.
394thof 416 places in Turkey for sunshine, shared: 4.01 peak sun hours a day on flat ground.
−12%solar energy a year compared with the average place in Turkey: 1,383 against 1,567 kWh per kWp.
−1 mindaylight on the longest day, compared with Istanbul: 15 h 07 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); Giresun ranks joint 394th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.44 kWh a day here, against 2.84 kWh on average in Turkey. The shortest day lasts 9 h 14 min, +1 min compared with Istanbul.
Solar forecast for Giresun, 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 Giresun
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Places near Giresun
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A free, live card for Giresun: 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.