Hydrology Banner

Victoria Falls / Big Tree

The Zambezi River flows at Victoria Falls have been decreasing due to reduced inflow from the upper Kariba Catchment, closing the period under review at 2,734m3/s on 29th April 2021. The flow observed on the same date last year was 4,427m3/s.

DateFlow (m3/s) 2020/21Flow (m3/s) 2019/20
16/4/20212,9923,825
17/4/20212,9453,857
18/4/20212,9033,873
19/4/20212,8773,890
20/4/20212,8583,922
21/4/20212,8343,954
22/4/20212,8084,005
23/4/20212,7974,086
24/4/20212,7834,153
25/4/20212,7664,206
26/4/20212,7504,252
27/4/20212,7484,358
28/4/20212,7414,375
29/4/20212,7344,427
From: 
Friday, April 16, 2021
To: 
Thursday, April 29, 2021
Lake Levels Graphic: 
vic-falls

Chavuma

The Zambezi River flows at Chavuma are steadily decreasing, closing the period under review at 535m3/s as of 9th June 2026, whilst last year on the same date it was at 591m3/s. 

From:
27 May 2026
To:
9 June 2026
DateFlow (m3/s)(2025/26)Flow (m3/s)(2024/25)
27-May737870
28-May718842
29-May698818
30-May679798
31-May663770
1-Jun645750
2-Jun629728
3-Jun615705
4-Jun598685
5-Jun587664
6-Jun576643
7-Jun562627
8-Jun548611
9-Jun535591

Ngonye

Flows at Ngonye are steadily decreasing, closing the period under review at 1,818m3/s as of 9th June 2026. The flow recorded last year on the same date was at 2,170m3/s.

From:
27 May 2026
To:
9 June 2026
DateFlow (m3/s)(2025/26)Flow (m3/s)(2024/25)
27-May23602713
28-May23132683
29-May22632657
30-May22232610
31-May21752575
1-Jun21312517
2-Jun20852494
3-Jun20442437
4-Jun20062389
5-Jun19652344
6-Jun19292306
7-Jun18872246
8-Jun18512217
9-Jun18182170

Victoria Falls (Nana’s Farm Station)

The Zambezi River flows at Victoria Falls – Nana’s Farm Station are steadily decreasing, closing the period under review at 2,371m3/s as of 9th June 2026.  The flow observed on the same date last year was at 2,639m3/s.

From:
27 May 2026
To:
9 June 2026
DateFlow (m3/s)(2025/26)Flow (m3/s)(2024/25)
27-May29912790
28-May29452794
29-May29052790
30-May28652790
31-May28512785
1-Jun27502776
2-Jun27202766
3-Jun26622764
4-Jun26262748
5-Jun25752738
6-Jun25192729
7-Jun24692708
8-Jun24202678
9-Jun23712639