E2 pH

Southern Basin, 1976
        Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Surfac  7.2    7.2     -      -     7.5    7.5     -     7.7     -     7.7     -     7.9

Source: Carmouze, J.-P., Chantraine, J. M. & Lemoalle, J. (1983) Physical and chemical characteristics of the waters.  "Lake Chad" (ed. Carmouze, J.-P., Durand, J.-R. & Leveque, C.), pp. 65-94.