Attica · Greece · 37.91° N · 23.75° E
Solar position in Argyroúpoli
Sun position, daylight and the best solar panel angle for Argyroúpoli — computed for 37.91° N, 23.75° E, 67 m above sea level.
The sun right now
Sun in Argyroúpoli today
Sunday, 25 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:15 | sun 18° below horizon |
| Nautical dawn | 05:45 | 12° below |
| Civil dawn | 06:16 | 6° below |
| Sunrise | 06:43 | 105° ESE |
| Golden hour ends | 07:19 | sun 6° up |
| Solar noon | 12:08 | 39.9° high |
| Golden hour starts | 16:58 | sun 6° up |
| Sunset | 17:34 | 255° WSW |
| Civil dusk | 18:01 | 6° below |
| Nautical dusk | 18:32 | 12° below |
| Astronomical dusk | 19:02 | 18° below |
| Day length | 10 h 51 min | |
Sun path diagram for Argyroúpoli
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 75.5° at solar noon in Argyroúpoli; on the December solstice only 28.7°. Sunrise swings from 59° ENE in June to 120° ESE in December — a 61° 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 | 07:37 | 12:36 | 17:35 | 9 h 59 min | 32.3° |
| February | 07:07 | 12:38 | 18:10 | 11 h 02 min | 41.6° |
| March | 06:27 | 12:32 | 18:37 | 12 h 10 min | 52.4° |
| April | 06:41 | 13:23 | 20:06 | 13 h 24 min | 64.0° |
| May | 06:10 | 13:21 | 20:33 | 14 h 23 min | 72.3° |
| June | 06:02 | 13:26 | 20:50 | 14 h 48 min | 75.5° |
| July | 06:19 | 13:31 | 20:43 | 14 h 24 min | 72.5° |
| August | 06:45 | 13:28 | 20:10 | 13 h 25 min | 64.1° |
| September | 07:11 | 13:17 | 19:23 | 12 h 12 min | 52.7° |
| October | 07:39 | 13:09 | 18:39 | 11 h 00 min | 41.3° |
| November | 07:11 | 12:10 | 17:09 | 9 h 58 min | 32.2° |
| December | 07:36 | 12:23 | 17:09 | 9 h 32 min | 28.7° |
A year of daylight in Argyroúpoli
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 Argyroúpoli
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
29°collects the most energy over a year: 1557 kWh per kWp.
61°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° | 1384 | 89% | 1.40 | 4.3× |
| 15° | 1515 | 97% | 1.89 | 3.2× |
| 29° year-round best | 1557 | 100% | 2.25 | 2.5× |
| 30° | 1557 | 100% | 2.28 | 2.5× |
| 38° = latitude | 1542 | 99% | 2.42 | 2.2× |
| 45° | 1508 | 97% | 2.52 | 2.1× |
| 60° | 1373 | 88% | 2.61 | 1.7× |
| 61° off-grid best | 1361 | 87% | 2.61 | 1.7× |
| 70° | 1239 | 80% | 2.58 | 1.6× |
| 90° | 893 | 57% | 2.31 | 1.9× |
A fixed array in Argyroúpoli produces the most over a year at 29°. The design month for an off-grid system is December: at 61° it makes 2.61 kWh per kWp a day, 16% more than at 29°, and costs 13% of the yearly total. Why steep panels win winter.
Off-grid solar in Argyroúpoli at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 29° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 29° | Mean temp. |
|---|---|---|---|---|---|
| January | 2.06 | 3.31 | 2.87 | 2.57 | 10.7 °C |
| February | 2.85 | 3.69 | 3.20 | 3.18 | 11.0 °C |
| March | 4.20 | 4.38 | 3.77 | 4.25 | 12.7 °C |
| April | 5.58 | 4.36 | 3.71 | 4.97 | 15.2 °C |
| May | 6.67 | 4.05 | 3.38 | 5.34 | 19.5 °C |
| June | 7.56 | 3.87 | 3.16 | 5.62 | 24.1 °C |
| July | 7.67 | 4.08 | 3.31 | 5.73 | 26.7 °C |
| August | 6.86 | 4.70 | 3.81 | 5.61 | 26.9 °C |
| September | 5.25 | 4.98 | 4.10 | 4.92 | 23.8 °C |
| October | 3.59 | 4.47 | 3.74 | 3.84 | 19.8 °C |
| November | 2.38 | 3.65 | 3.10 | 2.85 | 16.0 °C |
| December | 1.77 | 2.99 | 2.58 | 2.25 | 12.3 °C |
| Year | 4.71 avg | 4.05 avg | 1239 kWh | 1557 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 460 Wp of panels at 70°, versus 520 Wp at 29°. The steep array is 13% smaller for the same winter. Size your own system.
Row spacing in Argyroúpoli
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.
4.6 mrow pitch at 70°
3.8 mrow pitch at 29°
How Argyroúpoli compares in Greece
Against the other 116 places in Greece with climate data, for a fixed array at its best angle.
16thof 117 places in Greece for sunshine, shared: 4.71 peak sun hours a day on flat ground.
+2%solar energy a year compared with the average place in Greece: 1,557 against 1,533 kWh per kWp.
±0 mindaylight on the longest day, compared with Athens: 14 h 48 min against 14 h 48 min.
29°best year-round tilt here; across Greece it runs from 27° in Irákleion to 34° in Sérres.
Of the 117 places in Greece, Ródos gets the most sun (5.17 peak sun hours a day) and Dráma the least (4.18); Argyroúpoli ranks joint 16th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.58 kWh a day here, against 2.64 kWh on average in Greece. The shortest day lasts 9 h 32 min, ±0 min compared with Athens.
Solar forecast for Argyroúpoli, 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 Argyroúpoli
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Places near Argyroúpoli
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A free, live card for Argyroúpoli: 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.