47 places · sun position · panel angle
Solar data for Guinea
Across the 47 places in Guinea the best fixed tilt for solar panels runs from 10° in Nzérékoré to 14° in Kintinian, and flat ground gets 4.9 to 5.8 peak sun hours a day. Every number is computed for each place.
Solar power in Guinea at a glance
Averages over 47 places with climate data, for a fixed array facing south.
- 4.86–5.04
- 5.04–5.21
- 5.21–5.39
- 5.39–5.57
- 5.57–5.75
Peak sun hours a day on flat ground. Each dot is one place.
The sunniest place in Guinea is Kintinian (Kankan Region) with 5.75 peak sun hours a day on flat ground; the least sunny is Nzérékoré with 4.86. A 1 kWp array at its best angle makes from 1,430 kWh a year in Nzérékoré to 1,696 kWh in Kintinian — 1,594 kWh on average.
The best year-round tilt runs from 10° in Nzérékoré to 14° in Kintinian. Off-grid systems are sized for the darkest month and do better steeper, at 0° on average: at 70° that month brings 1.21 kWh per kWp a day in Camayenne and 1.46 kWh in Koundara.
Size an off-grid system or open any place below for its sun path, monthly table and tilt curve.
Sunniest places in Guinea
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 | Kintinian | Kankan Region | 5.75 | 1,696 | 14° |
| 2 | Siguiri | Kankan Region | 5.74 | 1,692 | 13° |
| 3 | Koundara | Boké Region | 5.71 | 1,675 | 13° |
| 4 | Dinguiraye | Faranah | 5.69 | 1,682 | 13° |
| 4 | Kamabi | Boké Region | 5.69 | 1,670 | 13° |
| 6 | Tougué | Labé Region | 5.67 | 1,682 | 13° |
| 7 | Donghol-Sigon | Labé Region | 5.66 | 1,676 | 14° |
| 8 | Mandiana | Kankan Region | 5.62 | 1,658 | 13° |
| 9 | Bissikrima | Faranah | 5.61 | 1,659 | 13° |
| 9 | Koumbia | Boké Region | 5.61 | 1,650 | 13° |
Least sunny places in Guinea
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 43 | Yende Millimou | Faranah | 5.12 | 1,512 | 11° |
| 44 | Macenta | Nzérékoré Region | 5.03 | 1,490 | 11° |
| 44 | Gueckedou | Nzérékoré Region | 5.03 | 1,486 | 11° |
| 46 | Lola | Nzérékoré Region | 4.89 | 1,441 | 10° |
| 47 | Nzérékoré | Nzérékoré Region | 4.86 | 1,430 | 10° |
Solar by region in Guinea
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 |
|---|---|---|---|---|---|---|
| Labé Region | 3 | 5.63 | 1,672 | 13° | 1.43 kWh | Tougué |
| Kankan Region | 7 | 5.56 | 1,641 | 13° | 1.38 kWh | Kintinian |
| Boké Region | 9 | 5.52 | 1,624 | 13° | 1.38 kWh | Koundara |
| Mamou Region | 2 | 5.46 | 1,617 | 13° | 1.38 kWh | Pita |
| Faranah | 10 | 5.46 | 1,615 | 12° | 1.38 kWh | Dinguiraye |
| Kindia | 7 | 5.29 | 1,555 | 12° | 1.29 kWh | Télimélé |
| Conakry | 3 | 5.21 | 1,532 | 12° | 1.21 kWh | Dixinn |
| Nzérékoré Region | 6 | 5.05 | 1,491 | 11° | 1.28 kWh | Moussadou |
Largest places in Guinea at a glance
| Place | Latitude | Best tilt | Off-grid tilt | Sun hours/day (flat) |
|---|---|---|---|---|
| Conakry | 9.5° N | 12° | 0° | 5.21 |
| Camayenne | 9.5° N | 12° | 0° | 5.21 |
| Nzérékoré | 7.8° N | 10° | 0° | 4.86 |
| Kankan | 10.4° N | 12° | 0° | 5.55 |
| Manéah | 9.7° N | 12° | 0° | 5.25 |
| Dubréka | 9.8° N | 12° | 0° | 5.26 |
| Kindia | 10.1° N | 12° | 0° | 5.28 |
| Siguiri | 11.4° N | 13° | 0° | 5.74 |
| Dixinn | 9.6° N | 12° | 0° | 5.22 |
| Kissidougou | 9.2° N | 11° | 0° | 5.20 |
| Kamsar | 10.7° N | 13° | 0° | 5.45 |
| Labé | 11.3° N | 13° | 0° | 5.58 |
| Gueckedou | 8.6° N | 11° | 0° | 5.03 |
| Mamou | 10.4° N | 13° | 0° | 5.41 |
| Coyah | 9.7° N | 12° | 0° | 5.25 |
| Faranah | 10.0° N | 12° | 0° | 5.42 |
| Macenta | 8.5° N | 11° | 0° | 5.03 |
| Fria | 10.4° N | 13° | 0° | 5.31 |
| Boké | 10.9° N | 13° | 0° | 5.47 |
| Kolaboui | 10.8° N | 13° | 0° | 5.47 |
Daylight and clock time in Guinea
In Koundara (12.5° N), the northernmost place, the longest day of the year lasts 12 h 52 min and the shortest 11 h 24 min; in Nzérékoré (7.8° N), the southernmost, 12 h 35 min and 11 h 40 min. Guinea does not use daylight saving time: the clocks stay the same all year.
| Time zone | Places | UTC offset | Clocks change in 2026 |
|---|---|---|---|
| Africa/Conakry | 47 | UTC | no daylight saving time |