Trarza · Mauritania · 17.55° N · 14.70° W
Solar position in Boutilimitt
Sun position, daylight and the best solar panel angle for Boutilimitt — computed for 17.55° N, 14.70° W, 51 m above sea level.
The sun right now
Sun in Boutilimitt today
Saturday, 24 October 2026 · local time UTC
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:41 | sun 18° below horizon |
| Nautical dawn | 06:06 | 12° below |
| Civil dawn | 06:32 | 6° below |
| Sunrise | 06:54 | 102° ESE |
| Golden hour ends | 07:24 | sun 6° up |
| Solar noon | 12:42 | 60.6° high |
| Golden hour starts | 18:01 | sun 6° up |
| Sunset | 18:31 | 258° WSW |
| Civil dusk | 18:53 | 6° below |
| Nautical dusk | 19:18 | 12° below |
| Astronomical dusk | 19:44 | 18° below |
| Day length | 11 h 37 min | |
Sun path diagram for Boutilimitt
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 84.1° at solar noon in Boutilimitt; on the December solstice only 49.0°. 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 07:32 | 13:10 | 18:47 | 11 h 15 min | 52.6° |
| February | 07:22 | 13:12 | 19:02 | 11 h 40 min | 62.0° |
| March | 07:02 | 13:05 | 19:09 | 12 h 08 min | 72.8° |
| April | 06:38 | 12:57 | 19:16 | 12 h 38 min | 84.4° |
| May | 06:24 | 12:55 | 19:26 | 13 h 01 min | 87.3° |
| June | 06:25 | 13:00 | 19:36 | 13 h 11 min | 84.1° |
| July | 06:34 | 13:05 | 19:35 | 13 h 02 min | 87.1° |
| August | 06:42 | 13:01 | 19:20 | 12 h 38 min | 84.4° |
| September | 06:47 | 12:51 | 18:55 | 12 h 08 min | 73.0° |
| October | 06:53 | 12:43 | 18:32 | 11 h 39 min | 61.7° |
| November | 07:07 | 12:44 | 18:21 | 11 h 15 min | 52.5° |
| December | 07:24 | 12:56 | 18:29 | 11 h 05 min | 49.0° |
A year of daylight in Boutilimitt
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 Boutilimitt
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
17°collects the most energy over a year: 1886 kWh per kWp.
22°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° | 1822 | 97% | 3.92 | 1.5× |
| 15° | 1885 | 100% | 4.61 | 1.3× |
| 17° year-round best | 1886 | 100% | 4.68 | 1.2× |
| 18° = latitude | 1886 | 100% | 4.72 | 1.2× |
| 22° off-grid best | 1879 | 100% | 4.84 | 1.2× |
| 30° | 1845 | 98% | 5.03 | 1.3× |
| 45° | 1703 | 90% | 5.15 | 1.4× |
| 60° | 1469 | 78% | 4.98 | 1.9× |
| 70° | 1272 | 67% | 4.70 | 2.3× |
| 90° | 869 | 46% | 3.78 | 2.9× |
A fixed array in Boutilimitt produces the most over a year at 17°. The design month for an off-grid system is December: at 22° it makes 4.84 kWh per kWp a day, 3% more than at 17°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Boutilimitt at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 17° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 17° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.24 | 5.73 | 4.77 | 4.94 | 20.9 °C |
| February | 5.99 | 5.47 | 4.52 | 5.34 | 23.0 °C |
| March | 6.99 | 4.97 | 4.06 | 5.80 | 26.3 °C |
| April | 7.42 | 3.79 | 3.04 | 5.72 | 29.4 °C |
| May | 7.45 | 2.92 | 2.30 | 5.43 | 32.3 °C |
| June | 7.16 | 2.62 | 2.04 | 5.10 | 33.5 °C |
| July | 6.87 | 2.73 | 2.14 | 4.99 | 31.8 °C |
| August | 6.64 | 3.14 | 2.49 | 5.00 | 31.2 °C |
| September | 6.30 | 4.00 | 3.19 | 4.98 | 31.3 °C |
| October | 6.07 | 5.04 | 4.04 | 5.13 | 30.2 °C |
| November | 5.35 | 5.63 | 4.60 | 4.90 | 26.1 °C |
| December | 4.92 | 5.68 | 4.70 | 4.68 | 22.4 °C |
| Year | 6.37 avg | 4.30 avg | 1272 kWh | 1886 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 580 Wp of panels at 70°, versus 250 Wp at 17°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Boutilimitt
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.
2.5 mrow pitch at 70°
2.5 mrow pitch at 17°
How Boutilimitt compares in Mauritania
Against the other 25 places in Mauritania with climate data, for a fixed array at its best angle.
1stof 26 places in Mauritania for sunshine, shared: 6.37 peak sun hours a day on flat ground.
+2%solar energy a year compared with the average place in Mauritania: 1,886 against 1,845 kWh per kWp.
−2 mindaylight on the longest day, compared with Nouakchott: 13 h 11 min against 13 h 13 min.
17°best year-round tilt here; across Mauritania it runs from 15° in Sélibaby to 22° in Zouérat.
Boutilimitt shares the top spot for sunshine among the 26 places in Mauritania (6.37 peak sun hours a day); the least sunny is El ’Ayoûn with 6.03. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.04 kWh a day here, against 1.95 kWh on average in Mauritania. The shortest day lasts 11 h 05 min, +2 min compared with Nouakchott.
Solar forecast for Boutilimitt, 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 Boutilimitt: 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.