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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 receding, closing the period under review at 150m3/s as of 25th August 2025, whilst last year on the same date it was lower at 106m3/s.

From:
12 August 2025
To:
25 August 2025
DateFlow (m3/s)(2024/25)Flow (m3/s)(2023/24)
12-Aug185132
13-Aug182130
14-Aug178127
15-Aug175126
16-Aug173124
17-Aug170121
18-Aug168120
19-Aug165118
20-Aug163115
21-Aug160113
22-Aug158112
23-Aug156110
24-Aug153107
25-Aug150106
chavuma

Ngonye

Flows at Ngonye are receding, closing the period under review at 431m3/s as of 25th August 2025. The flow recorded last year on the same date was lower at 311m3/s.

From:
12 August 2025
To:
25 August 2025
DateFlow (m3/s)(2024/25)Flow (m3/s)(2023/24)
12-Aug527363
13-Aug516359
14-Aug510356
15-Aug500351
16-Aug494347
17-Aug487346
18-Aug480340
19-Aug472337
20-Aug465332
21-Aug460329
22-Aug454323
23-Aug443323
24-Aug442318
25-Aug431311
ngonye

Victoria Falls (Nana’s Farm Station)

The Zambezi River flows at Victoria Falls – Nana’s Farm Station are in recession, closing the period under review at 456m3/s as of 25th August 2025.  The flow observed on the same date last year was lower at 328m3/s.

From:
12 August 2025
To:
25 August 2025
DateFlow (m3/s)(2024/25)Flow (m3/s)(2023/24)
12-Aug562374
13-Aug550369
14-Aug540367
15-Aug530362
16-Aug519357
17-Aug513354
18-Aug508351
19-Aug497347
20-Aug492345
21-Aug485341
22-Aug478338
23-Aug466335
24-Aug459331
25-Aug456328
vic-falls