Insolation | Chad | North | Center | South |
Average annual Insolation (hrs/year) | 3030.91 ± 176.33 | 3612.33 ± 261.18 | 3185.50 ± 208.78 | 2753.39 ± 95.92 |
Average monthly Insolation (hrs/day) | 8.9 ± 0.8 | 10 ± 0.41 | 8.85 ± 1.1 | 7.75 ± 1.28 |