it is around 8.7, gradually decreasing to 8.3-8.5 in the deepest parts of Tanganyika. A similar pattern can be seen in the electric conductivity, ranging from about 670 uS/cm in the upper part to 690 uS/cm in the deepest.

Surface temperatures generally range from about 24 C in the southern part of the lake in early August to 28 - 29 C in the late rainy season in March--April. At depths greater than 400 m, the temperature is very stable at 23.1 - 23.4 C. The water has gradually warmed since