Baladiyat ar Rayyan · Qatar · 25.29° N · 51.42° E
Solar position in Ar Rayyān
Sun position, daylight and the best solar panel angle for Ar Rayyān — computed for 25.29° N, 51.42° E, 23 m above sea level.
The sun right now
Sun in Ar Rayyān today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:20 | sun 18° below horizon |
| Nautical dawn | 04:47 | 12° below |
| Civil dawn | 05:13 | 6° below |
| Sunrise | 05:37 | 103° ESE |
| Golden hour ends | 06:08 | sun 6° up |
| Solar noon | 11:18 | 52.9° high |
| Golden hour starts | 16:28 | sun 6° up |
| Sunset | 16:59 | 257° WSW |
| Civil dusk | 17:22 | 6° below |
| Nautical dusk | 17:49 | 12° below |
| Astronomical dusk | 18:16 | 18° below |
| Day length | 11 h 22 min | |
Sun path diagram for Ar Rayyān
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 88.1° at solar noon in Ar Rayyān; on the December solstice only 41.3°. Sunrise swings from 63° ENE in June to 116° ESE in December — a 52° 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 | 06:20 | 11:45 | 17:10 | 10 h 49 min | 44.9° |
| February | 06:04 | 11:48 | 17:31 | 11 h 27 min | 54.2° |
| March | 05:37 | 11:41 | 17:45 | 12 h 08 min | 65.0° |
| April | 05:06 | 11:33 | 17:59 | 12 h 53 min | 76.6° |
| May | 04:46 | 11:30 | 18:15 | 13 h 28 min | 84.9° |
| June | 04:44 | 11:36 | 18:27 | 13 h 43 min | 88.1° |
| July | 04:56 | 11:40 | 18:25 | 13 h 29 min | 85.1° |
| August | 05:10 | 11:37 | 18:04 | 12 h 54 min | 76.8° |
| September | 05:22 | 11:27 | 17:32 | 12 h 10 min | 65.4° |
| October | 05:35 | 11:18 | 17:01 | 11 h 26 min | 54.0° |
| November | 05:55 | 11:20 | 16:44 | 10 h 49 min | 44.8° |
| December | 06:15 | 11:32 | 16:49 | 10 h 34 min | 41.3° |
A year of daylight in Ar Rayyān
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 Ar Rayyān
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
22°collects the most energy over a year: 1635 kWh per kWp.
44°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° | 1543 | 94% | 2.77 | 2.0× |
| 15° | 1626 | 99% | 3.37 | 1.6× |
| 22° year-round best | 1635 | 100% | 3.58 | 1.4× |
| 25° = latitude | 1633 | 100% | 3.66 | 1.4× |
| 30° | 1622 | 99% | 3.77 | 1.3× |
| 44° off-grid best | 1537 | 94% | 3.94 | 1.2× |
| 45° | 1528 | 93% | 3.95 | 1.2× |
| 60° | 1353 | 83% | 3.90 | 1.4× |
| 70° | 1198 | 73% | 3.74 | 1.6× |
| 90° | 837 | 51% | 3.14 | 2.3× |
A fixed array in Ar Rayyān produces the most over a year at 22°. The design month for an off-grid system is December: at 44° it makes 3.94 kWh per kWp a day, 10% more than at 22°, and costs 6% of the yearly total. Why steep panels win winter.
Off-grid solar in Ar Rayyān at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 22° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 22° | Mean temp. |
|---|---|---|---|---|---|
| January | 3.70 | 4.52 | 3.81 | 3.77 | 18.2 °C |
| February | 4.47 | 4.52 | 3.80 | 4.23 | 18.9 °C |
| March | 5.29 | 4.30 | 3.57 | 4.61 | 22.1 °C |
| April | 5.83 | 3.69 | 2.99 | 4.64 | 26.3 °C |
| May | 6.69 | 3.36 | 2.66 | 4.95 | 31.2 °C |
| June | 7.10 | 3.09 | 2.42 | 5.05 | 33.6 °C |
| July | 6.72 | 3.14 | 2.44 | 4.82 | 35.3 °C |
| August | 6.48 | 3.62 | 2.82 | 4.85 | 35.6 °C |
| September | 6.01 | 4.40 | 3.48 | 4.87 | 33.9 °C |
| October | 5.10 | 4.88 | 3.91 | 4.55 | 30.6 °C |
| November | 3.95 | 4.62 | 3.78 | 3.84 | 25.5 °C |
| December | 3.48 | 4.48 | 3.74 | 3.58 | 20.6 °C |
| Year | 5.41 avg | 4.05 avg | 1198 kWh | 1635 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 490 Wp of panels at 70°, versus 330 Wp at 22°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Ar Rayyān
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.
3.1 mrow pitch at 70°
2.8 mrow pitch at 22°
How Ar Rayyān compares in Qatar
Against the other 9 places in Qatar with climate data, for a fixed array at its best angle.
4thof 10 places in Qatar for sunshine: 5.41 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in Qatar: 1,635 against 1,627 kWh per kWp.
±0 mindaylight on the longest day, compared with Doha: 13 h 43 min against 13 h 43 min.
22°best year-round tilt here; across Qatar it runs from 21° in Lusail to 22° in Doha.
Of the 10 places in Qatar, Umm Ghuwaylīnah gets the most sun (5.46 peak sun hours a day) and Az̧ Z̧a‘āyin the least (5.29); Ar Rayyān ranks 4th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.42 kWh a day here, against 2.42 kWh on average in Qatar. The shortest day lasts 10 h 34 min, ±0 min compared with Doha.
Solar forecast for Ar Rayyān, 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 Ar Rayyān: 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.