Hydrology Banner

Victoria Falls / Big Tree

The second Zambezi River flood peak (5,825 m3/s ) recorded at Chavuma on 6th April 2020 arrived at Victoria Falls some 27 days later on 3rd May 2020, with a subdued magnitude of 4,568 m3/s before dropping to 4,306m3/s on 11th May 2020. The flow observed on the same date last year was 1,127m3/s. (NB: the variation in timing of the peak flood between Victoria Falls and Nana’s Farm upstream is attributable to a potential gauge shift that will have to be corrected after the flood season).

DateFlow (m3/s) 2020Flow (m3/s) 2019
28/4/202043751098
29/4/202044271098
30/4/202044621108
1/5/202044971117
2/5/202045321127
3/5/202045681136
4/5/202045321136
5/5/202045321146
6/5/202044621156
7/5/202044441165
8/5/202044271175
9/5/202043921156
10/5/202043751146
11/5/202043061127
From: 
Tuesday, April 28, 2020
To: 
Monday, May 11, 2020
Lake Levels Graphic: 
vic-falls

Chavuma

The Zambezi River flows at Chavuma are in recession, closing the period under review at 114m3/s as of 16th September 2026, whilst last year on the same date it was at 102m3/s. 

From:
3 September 2026
To:
16 September 2026
DateFlow (m3/s)(2025/26)Flow (m3/s)(2024/25)
3-Sept129125
4-Sept126122
5-Sept123119
6-Sept126118
7-Sept126116
8-Sept124115
9-Sept121113
10-Sept120112
11-Sept120110
12-Sept119108
13-Sept117107
14-Sept121105
15-Sept115104
16-Sept114102

Ngonye

Flows at Ngonye are steadily decreasing, closing the period under review at 377m3/s as of 16th September 2026. The flow recorded last year on the same date was at 322m3/s.

From:
3 September 2026
To:
16 September 2026
DateFlow (m3/s)(2025/26)Flow (m3/s)(2024/25)
3-Sept433378
4-Sept427370
5-Sept425365
6-Sept418363
7-Sept413356
8-Sept413354
9-Sept402353
10-Sept399348
11-Sept395344
12-Sept390339
13-Sept388334
14-Sept385328
15-Sept378326
16-Sept377322

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 397m3/s as of 16th September 2026.  The flow observed on the same date last year was at 343m3/s.

From:
16 September 2026
To:
16 September 2026
DateFlow (m3/s)(2025/26)Flow (m3/s)(2024/25)
3-Sept453402
4-Sept451394
5-Sept447385
6-Sept444383
7-Sept438379
8-Sept433377
9-Sept427369
10-Sept424364
11-Sept419361
12-Sept415357
13-Sept410353
14-Sept407351
15-Sept403347
16-Sept397343