Victoria Falls / Big Tree

The Kariba Lake is designed to operate between levels 475.50m and 488.50m (with 0.70m freeboard) for hydropower generation.

The Lake level has continued rising steadily, stagnating at the close of the period under review at 481.25m (41.19% usable storage) on 22^nd June 2020. Last year on the same date, the Lake level was at 479.56m (28.61% usable storage).


Date	Flow (m3/s) 2020	Flow (m3/s) 2019
9/6/2020	2523	963
10/6/2020	2460	955
11/6/2020	2405	946
12/6/2020	2349	938
13/6/2020	2281	929
14/6/2020	2234	921
15/6/2020	2184	912
16/6/2020	2135	904
17/6/2020	2092	896
18/6/2020	2040	888
19/6/2020	1994	871
20/6/2020	1948	855
21/6/2020	1909	839
22/6/2020	1868	831

Victoria Falls / Big Tree

From:

Tuesday, June 9, 2020

To:

Monday, June 22, 2020

Lake Levels Graphic:

Chavuma

The Zambezi River flows at Chavuma are in recession, closing the period under review at 72m³/s as of 15^th October 2025, whilst last year on the same date it was lower at 57m³/s.

From:

2 October 2025

To:

15 October 2025


Date	Flow (m3/s)(2024/25)	Flow (m3/s)(2023/24)
2-Oct	83	63
3-Oct	82	63
4-Oct	81	62
5-Oct	79	61
6-Oct	78	61
7-Oct	78	63
8-Oct	78	62
9-Oct	77	61
10-Oct	76	61
11-Oct	76	60
12-Oct	75	60
13-Oct	74	59
14-Oct	72	57
15-Oct	72	57

Ngonye

Flows at Ngonye are receding, with isolated records of fluctuation due to the influence of local rainfall activity, closing the period under review at 228m³/s as of 15^th October 2025. The flow recorded last year on the same date was lower at 196m³/s.

From:

2 October 2025

To:

15 October 2025


Date	Flow (m3/s)(2024/25)	Flow (m3/s)(2023/24)
2-Oct	267	196
3-Oct	261	199
4-Oct	258	195
5-Oct	254	194
6-Oct	252	193
7-Oct	248	191
8-Oct	246	195
9-Oct	244	191
10-Oct	243	189
11-Oct	235	186
12-Oct	234	183
13-Oct	236	183
14-Oct	230	183
15-Oct	228	196

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 243m³/s as of 15^th October 2025. The flow observed on the same date last year was lower at 197m³/s.

From:

2 October 2025

To:

15 October 2025


Date	Flow (m3/s)(2024/25)	Flow (m3/s)(2023/24)
2-Oct	286	217
3-Oct	283	213
4-Oct	278	203
5-Oct	272	202
6-Oct	270	202
7-Oct	268	203
8-Oct	264	203
9-Oct	260	203
10-Oct	256	200
11-Oct	254	199
12-Oct	253	198
13-Oct	252	196
14-Oct	247	197
15-Oct	243	197