Deir ez-Zor · Syria · 34.85° N · 40.60° E
Solar position in Subaykhān
Sun position, daylight and the best solar panel angle for Subaykhān — computed for 34.85° N, 40.60° E, 188 m above sea level.
The sun right now
Sun in Subaykhān today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:06 | sun 18° below horizon |
| Nautical dawn | 05:35 | 12° below |
| Civil dawn | 06:05 | 6° below |
| Sunrise | 06:30 | 104° ESE |
| Golden hour ends | 07:05 | sun 6° up |
| Solar noon | 12:01 | 43.4° high |
| Golden hour starts | 16:57 | sun 6° up |
| Sunset | 17:32 | 256° WSW |
| Civil dusk | 17:57 | 6° below |
| Nautical dusk | 18:27 | 12° below |
| Astronomical dusk | 18:56 | 18° below |
| Day length | 11 h 01 min | |
Sun path diagram for Subaykhān
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 78.6° at solar noon in Subaykhān; on the December solstice only 31.7°. Sunrise swings from 60° ENE in June to 118° ESE in December — a 58° 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 | 07:22 | 12:29 | 17:35 | 10 h 12 min | 35.3° |
| February | 06:56 | 12:31 | 18:05 | 11 h 09 min | 44.7° |
| March | 06:20 | 12:24 | 18:29 | 12 h 10 min | 55.5° |
| April | 05:38 | 12:16 | 18:54 | 13 h 16 min | 67.1° |
| May | 05:10 | 12:14 | 19:18 | 14 h 08 min | 75.4° |
| June | 05:04 | 12:19 | 19:34 | 14 h 30 min | 78.6° |
| July | 05:19 | 12:24 | 19:28 | 14 h 09 min | 75.6° |
| August | 05:42 | 12:20 | 18:58 | 13 h 17 min | 67.2° |
| September | 06:04 | 12:10 | 18:16 | 12 h 11 min | 55.8° |
| October | 06:28 | 12:02 | 17:35 | 11 h 07 min | 44.4° |
| November | 06:57 | 12:03 | 17:09 | 10 h 12 min | 35.2° |
| December | 07:21 | 12:15 | 17:10 | 9 h 49 min | 31.7° |
A year of daylight in Subaykhān
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 Subaykhān
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
30°collects the most energy over a year: 1759 kWh per kWp.
58°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° | 1559 | 89% | 2.12 | 3.0× |
| 15° | 1709 | 97% | 2.88 | 2.1× |
| 30° year-round best | 1759 | 100% | 3.46 | 1.6× |
| 35° = latitude | 1753 | 100% | 3.61 | 1.5× |
| 45° | 1707 | 97% | 3.83 | 1.4× |
| 58° off-grid best | 1582 | 90% | 3.95 | 1.2× |
| 60° | 1556 | 88% | 3.95 | 1.2× |
| 70° | 1407 | 80% | 3.89 | 1.4× |
| 90° | 1019 | 58% | 3.46 | 2.5× |
A fixed array in Subaykhān produces the most over a year at 30°. The design month for an off-grid system is December: at 58° it makes 3.95 kWh per kWp a day, 14% more than at 30°, and costs 10% of the yearly total. Why steep panels win winter.
Off-grid solar in Subaykhān at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 30° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 30° | Mean temp. |
|---|---|---|---|---|---|
| January | 2.86 | 4.57 | 4.03 | 3.69 | 6.3 °C |
| February | 3.75 | 4.75 | 4.15 | 4.24 | 8.7 °C |
| March | 5.08 | 5.05 | 4.33 | 5.03 | 13.6 °C |
| April | 6.17 | 4.56 | 3.82 | 5.28 | 19.0 °C |
| May | 7.19 | 4.13 | 3.37 | 5.49 | 24.9 °C |
| June | 8.07 | 3.84 | 3.07 | 5.69 | 29.9 °C |
| July | 7.80 | 3.97 | 3.14 | 5.56 | 32.5 °C |
| August | 7.07 | 4.57 | 3.63 | 5.50 | 32.3 °C |
| September | 5.94 | 5.30 | 4.28 | 5.32 | 28.4 °C |
| October | 4.38 | 5.14 | 4.26 | 4.53 | 22.7 °C |
| November | 3.27 | 5.02 | 4.30 | 4.03 | 13.6 °C |
| December | 2.60 | 4.44 | 3.89 | 3.46 | 7.9 °C |
| Year | 5.36 avg | 4.61 avg | 1407 kWh | 1759 kWh |
Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 380 Wp of panels at 70°, versus 340 Wp at 30°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Subaykhān
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.
4.1 mrow pitch at 70°
3.6 mrow pitch at 30°
How Subaykhān compares in Syria
Against the other 87 places in Syria with climate data, for a fixed array at its best angle.
35thof 88 places in Syria for sunshine: 5.36 peak sun hours a day on flat ground.
+2%solar energy a year compared with the average place in Syria: 1,759 against 1,731 kWh per kWp.
−8 mindaylight on the longest day, compared with Aleppo: 14 h 30 min against 14 h 38 min.
30°best year-round tilt here; across Syria it runs from 27° in Damascus to 31° in Al Qāmishlī.
Of the 88 places in Syria, As-Suwayda gets the most sun (5.64 peak sun hours a day) and Al Mālikīyah the least (5.02); Subaykhān ranks 35th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 3.07 kWh a day here, against 3.06 kWh on average in Syria. The shortest day lasts 9 h 49 min, +7 min compared with Aleppo.
Solar forecast for Subaykhān, 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 Subaykhān
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Places near Subaykhān
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A free, live card for Subaykhān: 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.