Solarposition.org

Assaba · Mauritania · 15.56° N · 11.18° W

Solar position in El ’Ayoûn

Sun position, daylight and the best solar panel angle for El ’Ayoûn — computed for 15.56° N, 11.18° W, 179 m above sea level.

Sunrise today06:38102° ESE
Sunset today18:18258° WSW
Best panel angle16°year-round, facing south
Off-grid angle11°best for the darkest month

The sun right now

Azimuth180.0°
Elevation62.6°
At solar noon, 12:28Open on the sun map

Sun in El ’Ayoûn today

Saturday, 24 October 2026 · local time UTC

EventTimeDirection / height
Astronomical dawn05:26sun 18° below horizon
Nautical dawn05:5112° below
Civil dawn06:166° below
Sunrise06:38102° ESE
Golden hour ends07:07sun 6° up
Solar noon12:2862.6° high
Golden hour starts17:49sun 6° up
Sunset18:18258° WSW
Civil dusk18:406° below
Nautical dusk19:0612° below
Astronomical dusk19:3118° below
Day length11 h 40 min

Sun path diagram for El ’Ayoûn

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice78910111213141516171819EquinoxDecember solstice89101112131415161718Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 82.1° at solar noon in El ’Ayoûn; on the December solstice only 51.0°. Sunrise swings from 65° ENE in June to 114° ESE in December — a 49° 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:1512:5618:3611 h 21 min54.6°
February07:0612:5818:5011 h 43 min64.0°
March06:4812:5118:5512 h 08 min74.8°
April06:2612:4319:0012 h 34 min86.4°
May06:1412:4119:0812 h 55 min85.3°
June06:1412:4619:1813 h 03 min82.1°
July06:2312:5119:1812 h 55 min85.2°
August06:3012:4719:0412 h 34 min86.4°
September06:3312:3718:4112 h 08 min75.0°
October06:3712:2918:2011 h 43 min63.6°
November06:5012:3018:1111 h 21 min54.5°
December07:0612:4218:1811 h 12 min51.0°

A year of daylight in El ’Ayoûn

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in El ’Ayoûn

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

16°collects the most energy over a year: 1778 kWh per kWp.

11°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 16°Best worst-month 11°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearAugust kWh/kWp/dayBest ÷ worst month
0°172497%4.621.3×
11° off-grid best1774100%4.531.2×
15°1778100%4.461.2×
16° year-round best = latitude1778100%4.441.2×
30°173397%4.071.3×
45°159390%3.461.6×
60°136877%2.672.1×
70°118066%2.082.6×
90°80645%1.103.4×

A fixed array in El ’Ayoûn produces the most over a year at 16°. The design month for an off-grid system is August: at 11° it makes 4.53 kWh per kWp a day, 2% more than at 16°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in El ’Ayoûn at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 16° (year-round best).

0123456January: 4.63 (70°)4.6JanFebruary: 4.24 (70°)4.2FebMarch: 3.65 (70°)3.6MarApril: 2.74 (70°)2.7AprMay: 2.04 (70°)2.0MayJune: 1.80 (70°)1.8JunJuly: 1.78 (70°)1.8JulAugust: 2.08 (70°)2.1AugSeptember: 2.92 (70°)2.9SepOctober: 3.81 (70°)3.8OctNovember: 4.50 (70°)4.5NovDecember: 4.69 (70°)4.7Dec16°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 16°Mean temp.
January5.255.604.634.8623.0 °C
February5.915.194.245.1426.1 °C
March6.634.543.655.3829.8 °C
April7.023.472.745.3033.3 °C
May6.862.632.044.9435.3 °C
June6.462.331.804.6133.9 °C
July6.122.261.784.4729.9 °C
August5.842.602.084.4428.0 °C
September5.983.612.924.7927.9 °C
October5.864.713.814.9528.1 °C
November5.415.514.504.8926.1 °C
December5.055.694.694.7323.5 °C
Year6.03 avg4.00 avg1180 kWh1778 kWh

Sizing example. To run a 1 kWh-per-day load through July on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 660 Wp of panels at 70°, versus 270 Wp at 16°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in El ’Ayoûn

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.

2.4 mrow pitch at 70°

2.4 mrow pitch at 16°

Row spacing calculator

How El ’Ayoûn compares in Mauritania

Against the other 25 places in Mauritania with climate data, for a fixed array at its best angle.

26thof 26 places in Mauritania for sunshine: 6.03 peak sun hours a day on flat ground.

−4%solar energy a year compared with the average place in Mauritania: 1,778 against 1,845 kWh per kWp.

−10 mindaylight on the longest day, compared with Nouakchott: 13 h 03 min against 13 h 13 min.

16°best year-round tilt here; across Mauritania it runs from 15° in Sélibaby to 22° in Zouérat.

El ’Ayoûn gets the least sun of the 26 places in Mauritania (6.03 peak sun hours a day); the sunniest are Boutilimitt and one other place with 6.37. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 1.78 kWh a day here, against 1.95 kWh on average in Mauritania. The shortest day lasts 11 h 12 min, +10 min compared with Nouakchott.

The sunniest places in Mauritania

Solar forecast for El ’Ayoûn, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in El ’Ayoûn

What is the best solar panel angle in El ’Ayoûn?
For a fixed array facing south, the best year-round tilt in El ’Ayoûn is 16°, worth about 1778 kWh per kWp a year. An off-grid system that has to get through August does better at about 11°.
What time is sunrise and sunset in El ’Ayoûn today?
On 24 October 2026 the sun rises at 06:38 and sets at 18:18 local time (UTC), giving 11 h 40 min of daylight. Solar noon is at 12:28.
How many peak sun hours does El ’Ayoûn get?
On a flat surface 6.0 hours a day averaged over the year, from 5.1 in December to 7.0 in April. Panels tilted at 70° receive 2.3 sun hours a day in July.
How high does the sun get in El ’Ayoûn?
At solar noon the sun stands 82.1° above the horizon on the June solstice and 51.0° on the December solstice.
Is El ’Ayoûn a good place for solar panels?
With 6.0 peak sun hours a day on flat ground, El ’Ayoûn ranks 26th of 26 places in Mauritania for sunshine. A 1 kWp array at the best angle (16°) makes about 1,778 kWh a year here, 4% less than the average place in Mauritania.

Places near El ’Ayoûn

All places in Mauritania

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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.