16 places · sun position · panel angle
Solar data for South Sudan
Across the 16 places in South Sudan the best fixed tilt for solar panels runs from 5° in Pajok to 13° in Malakal, and flat ground gets 5.4 to 6.0 peak sun hours a day. Every number is computed for each place.
Solar power in South Sudan at a glance
Averages over 16 places with climate data, for a fixed array facing south.
- 5.42–5.53
- 5.53–5.65
- 5.65–5.76
- 5.76–5.87
- 5.87–5.99
Peak sun hours a day on flat ground. Each dot is one place.
The sunniest place in South Sudan is Kafia Kingi (Western Bahr al Ghazal) with 5.99 peak sun hours a day on flat ground; the least sunny is Bor with 5.42. A 1 kWp array at its best angle makes from 1,567 kWh a year in Bor to 1,763 kWh in Kafia Kingi — 1,659 kWh on average.
The best year-round tilt runs from 5° in Pajok to 13° in Malakal. Off-grid systems are sized for the darkest month and do better steeper, at 0° on average: at 70° that month brings 1.10 kWh per kWp a day in Torit and 1.25 kWh in Kafia Kingi.
Size an off-grid system or open any place below for its sun path, monthly table and tilt curve.
Sunniest places in South Sudan
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 | Kafia Kingi | Western Bahr al Ghazal | 5.99 | 1,763 | 13° |
| 2 | Winejok | Northern Bahr al Ghazal | 5.90 | 1,722 | 12° |
| 2 | Aweil | Northern Bahr al Ghazal | 5.90 | 1,720 | 11° |
| 4 | Gogrial | Warrap | 5.84 | 1,701 | 11° |
| 4 | Kuacjok | Warrap | 5.84 | 1,699 | 11° |
| 6 | Wau | Western Bahr al Ghazal | 5.79 | 1,687 | 10° |
| 7 | Tonj | Warrap | 5.72 | 1,662 | 9° |
| 8 | Pajok | Eastern Equatoria | 5.69 | 1,651 | 5° |
| 9 | Torit | Eastern Equatoria | 5.62 | 1,632 | 6° |
| 10 | Malakal | Upper Nile | 5.60 | 1,636 | 13° |
Solar by region in South Sudan
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 |
|---|---|---|---|---|---|---|
| Northern Bahr al Ghazal | 2 | 5.90 | 1,721 | 12° | 1.23 kWh | Winejok |
| Western Bahr al Ghazal | 2 | 5.89 | 1,725 | 12° | 1.21 kWh | Kafia Kingi |
| Warrap | 3 | 5.80 | 1,688 | 10° | 1.18 kWh | Gogrial |
| Eastern Equatoria | 2 | 5.66 | 1,642 | 6° | 1.10 kWh | Pajok |
| Upper Nile | 1 | 5.60 | 1,636 | 13° | 1.20 kWh | Malakal |
| Lakes | 1 | 5.59 | 1,622 | 9° | 1.14 kWh | Rumbek |
| Unity | 1 | 5.59 | 1,624 | 11° | 1.18 kWh | Leer |
| Central Equatoria | 2 | 5.56 | 1,617 | 7° | 1.13 kWh | Juba |
| Western Equatoria | 1 | 5.53 | 1,618 | 6° | 1.18 kWh | Yambio |
| Jonglei | 1 | 5.42 | 1,567 | 8° | 1.11 kWh | Bor |
Largest places in South Sudan at a glance
| Place | Latitude | Best tilt | Off-grid tilt | Sun hours/day (flat) |
|---|---|---|---|---|
| Juba | 4.9° N | 7° | 0° | 5.61 |
| Winejok | 9.0° N | 12° | 0° | 5.90 |
| Yei | 4.1° N | 6° | 0° | 5.51 |
| Malakal | 9.5° N | 13° | 0° | 5.60 |
| Wau | 7.7° N | 10° | 0° | 5.79 |
| Kuacjok | 8.3° N | 11° | 0° | 5.84 |
| Pajok | 3.9° N | 5° | 0° | 5.69 |
| Gogrial | 8.5° N | 11° | 0° | 5.84 |
| Yambio | 4.6° N | 6° | 0° | 5.53 |
| Aweil | 8.8° N | 11° | 0° | 5.90 |
| Rumbek | 6.8° N | 9° | 0° | 5.59 |
| Bor | 6.2° N | 8° | 0° | 5.42 |
| Torit | 4.4° N | 6° | 0° | 5.62 |
| Leer | 8.3° N | 11° | 0° | 5.59 |
| Tonj | 7.3° N | 9° | 0° | 5.72 |
| Kafia Kingi | 9.3° N | 13° | 0° | 5.99 |
Daylight and clock time in South Sudan
In Malakal (9.5° N), the northernmost place, the longest day of the year lasts 12 h 41 min and the shortest 11 h 34 min; in Pajok (3.9° N), the southernmost, 12 h 21 min and 11 h 54 min. South Sudan does not use daylight saving time: the clocks stay the same all year.
| Time zone | Places | UTC offset | Clocks change in 2026 |
|---|---|---|---|
| Africa/Juba | 16 | UTC+2 | no daylight saving time |