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River Flows

The hydrometric network used for the control and day to day operations of the Kariba reservoir comprise of thirteen stations where water levels are monitored daily. Flow measurements are carried out at eight of these stations which include the Victoria Falls, one of the key stations on the Zambezi River. Coincidentally, the maximum flow recorded at Victoria Falls was during the early construction phase of Kariba Dam in March 1958 at 10,000 cubic metres per second.  The lowest flows recorded to date at Victoria Falls were during the 1995/96 season which had an annual mean flow of 390 cubic metres per second, whereas the Long Term Mean Annual flow at Victoria Falls is 1,100 cubic metres per second.

FLOWS AT SELECTED STATIONS:

Chavuma

The Zambezi River flows at Chavuma are increasing steadily, closing the period under review at 3,065m3/s as of 29th April 2025, whilst last year on the same date it was much lower at 916m3/s.

From:
23 April 2025
To:
29 April 2025
DateFlow (m3/s)(2024/25)Flow (m3/s)(2023/24)
23-Apr2,610925
24-Apr2,684959
25-Apr2,597973
26-Apr2,641971
27-Apr2,749964
28-Apr2,936949
29-Apr3,065916
chavuma

Ngonye

Flows at Ngonye are increasing steadily, closing the period under review at 2,970m3/s as of 29th April 2025. The flow recorded last year on the same date was lower at 834m3/s.

From:
23 April 2025
To:
29 April 2025
DateFlow (m3/s)(2024/25)Flow (m3/s)(2023/24)
23-Apr2,697788
24-Apr2,706796
25-Apr2,799804
26-Apr2,842813
27-Apr2,885823
28-Apr2,934828
29-Apr2,970834
ngonye

Victoria Falls (Nana’s Farm Station)

The Zambezi River flows at Victoria Falls – Nana’s Farm Station are increasing steadily, closing the period under review at 2,498m3/s on 29th April 2025.  The flow observed on the same date last year was lower at 711m3/s.

From:
23 April 2025
To:
29 April 2025
DateFlow (m3/s)(2024/25)Flow (m3/s)(2023/24)
23-Apr2,352697
24-Apr2,376698
25-Apr2,427698
26-Apr2,451703
27-Apr2,467705
28-Apr2,483707
29-Apr2,498711
vic-falls