26 places · sun position · panel angle
Solar data for Mauritania
Across the 26 places in Mauritania the best fixed tilt for solar panels runs from 15° in Sélibaby to 22° in Zouérat, and flat ground gets 6.0 to 6.4 peak sun hours a day. Every number is computed for each place.
Solar power in Mauritania at a glance
Averages over 26 places with climate data, for a fixed array facing south.
- 6.03–6.10
- 6.10–6.17
- 6.17–6.23
- 6.23–6.30
- 6.30–6.37
Peak sun hours a day on flat ground. Each dot is one place.
The sunniest places in Mauritania, with 6.37 peak sun hours a day on flat ground, are Boutilimitt and one other place; the least sunny is El ’Ayoûn with 6.03. A 1 kWp array at its best angle makes from 1,777 kWh a year in Sélibaby to 1,921 kWh in Zouérat — 1,845 kWh on average.
The best year-round tilt runs from 15° in Sélibaby to 22° in Zouérat. Off-grid systems are sized for the darkest month and do better steeper, at 19° on average: at 70° that month brings 1.74 kWh per kWp a day in Sélibaby and 2.19 kWh in Zouérat.
Size an off-grid system or open any place below for its sun path, monthly table and tilt curve.
Sunniest places in Mauritania
Ranked by peak sun hours on flat ground: the yearly average of a day's sunshine energy (NASA POWER climatology). Output: 1 kWp at its best year-round angle.
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 1 | Boutilimitt | Trarza | 6.37 | 1,886 | 17° |
| 1 | Magṭa‘ Laḥjar | Brakna | 6.37 | 1,881 | 17° |
| 3 | Akjoujt | Inchiri | 6.30 | 1,881 | 19° |
| 3 | Aleg | Brakna | 6.30 | 1,858 | 16° |
| 5 | Guerou | Assaba | 6.26 | 1,849 | 16° |
| 6 | Zouérat | Tiris Zemmour | 6.25 | 1,921 | 22° |
| 7 | Ayoun El Atrous | Hodh El Gharbi | 6.24 | 1,844 | 16° |
| 8 | Atar | Adrar | 6.23 | 1,876 | 19° |
| 9 | Dar Naim | Nouakchott North | 6.22 | 1,868 | 17° |
| 9 | Néma | Hodh Ech Chargi | 6.22 | 1,838 | 17° |
Least sunny places in Mauritania
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 22 | Nouadhibou | Dakhlet Nouadhibou | 6.15 | 1,906 | 20° |
| 23 | Bougadoum | Hodh Ech Chargi | 6.13 | 1,809 | 16° |
| 24 | Rosso | Trarza | 6.09 | 1,809 | 16° |
| 25 | Sélibaby | Guidimaka | 6.04 | 1,777 | 15° |
| 26 | El ’Ayoûn | Assaba | 6.03 | 1,778 | 16° |
Solar by region in Mauritania
Averages of the places in each region, sunniest first. Darkest month: what 1 kWp of off-grid panels at 70° makes a day in the worst month of the year.
| Region | Places | Sun hours/day | kWh per kWp a year | Best tilt | Darkest month at 70° | Sunniest place |
|---|---|---|---|---|---|---|
| Inchiri | 1 | 6.30 | 1,881 | 19° | 2.09 kWh | Akjoujt |
| Brakna | 3 | 6.29 | 1,854 | 16° | 1.96 kWh | Magṭa‘ Laḥjar |
| Tiris Zemmour | 1 | 6.25 | 1,921 | 22° | 2.19 kWh | Zouérat |
| Adrar | 1 | 6.23 | 1,876 | 19° | 2.03 kWh | Atar |
| Nouakchott North | 1 | 6.22 | 1,868 | 17° | 2.03 kWh | Dar Naim |
| Trarza | 3 | 6.21 | 1,841 | 16° | 1.95 kWh | Boutilimitt |
| Nouakchott West | 2 | 6.21 | 1,867 | 17° | 2.03 kWh | Ksar |
| Mauritania | 1 | 6.21 | 1,866 | 17° | 2.02 kWh | Nouakchott |
| Hodh El Gharbi | 2 | 6.20 | 1,833 | 16° | 1.92 kWh | Ayoun El Atrous |
| Assaba | 4 | 6.18 | 1,822 | 16° | 1.90 kWh | Guerou |
| Hodh Ech Chargi | 4 | 6.17 | 1,824 | 16° | 1.85 kWh | Néma |
| Gorgol | 1 | 6.16 | 1,811 | 16° | 1.87 kWh | Kaédi |
| Dakhlet Nouadhibou | 1 | 6.15 | 1,906 | 20° | 2.07 kWh | Nouadhibou |
| Guidimaka | 1 | 6.04 | 1,777 | 15° | 1.74 kWh | Sélibaby |
Largest places in Mauritania at a glance
| Place | Latitude | Best tilt | Off-grid tilt | Sun hours/day (flat) |
|---|---|---|---|---|
| Nouakchott | 18.1° N | 17° | 24° | 6.21 |
| Nouadhibou | 20.9° N | 20° | 28° | 6.15 |
| Kiffa | 16.6° N | 16° | 18° | 6.20 |
| Dar Naim | 18.1° N | 17° | 24° | 6.22 |
| Néma | 16.6° N | 17° | 15° | 6.22 |
| Mbera | 15.9° N | 16° | 11° | 6.19 |
| Ksar | 18.1° N | 17° | 24° | 6.21 |
| Kaédi | 16.2° N | 16° | 17° | 6.16 |
| Zouérat | 22.7° N | 22° | 28° | 6.25 |
| Tevragh Zeina | 18.1° N | 17° | 24° | 6.21 |
| Bougadoum | 15.9° N | 16° | 12° | 6.13 |
| Sélibaby | 15.2° N | 15° | 10° | 6.04 |
| Atar | 20.5° N | 19° | 25° | 6.23 |
| Ayoun El Atrous | 16.7° N | 16° | 17° | 6.24 |
| Guerou | 17.1° N | 16° | 19° | 6.26 |
| Boutilimitt | 17.5° N | 17° | 22° | 6.37 |
| El ’Ayoûn | 15.6° N | 16° | 11° | 6.03 |
| Tékane | 16.6° N | 16° | 19° | 6.18 |
| Bogué | 16.6° N | 16° | 19° | 6.19 |
| Aleg | 17.1° N | 16° | 19° | 6.30 |
Daylight and clock time in Mauritania
In Zouérat (22.7° N), the northernmost place, the longest day of the year lasts 13 h 32 min and the shortest 10 h 44 min; in Sélibaby (15.2° N), the southernmost, 13 h 02 min and 11 h 14 min. Mauritania does not use daylight saving time: the clocks stay the same all year.
| Time zone | Places | UTC offset | Clocks change in 2026 |
|---|---|---|---|
| Africa/Nouakchott | 26 | UTC | no daylight saving time |