# Mekong Delta hydrological and flood risks

> Live situation record from CLSTR: https://clstr.news/situations/mekong-delta-hydrological-and-flood-risks
> Updated: 2026-08-15T03:17:00.000Z. Sources: 3. Developments: 2.

The Mekong Delta is experiencing a complex hydrological situation characterized by low upstream water levels and preparations for the annual flood season. In upstream areas such as Dong Thap province, fields remain dry following the summer-autumn rice harvest, while local fishermen prepare equipment to catch seasonal aquatic species once water levels rise.

Simultaneously, a hydrological paradox has emerged where low upstream flows on the Hau and Tien rivers are being offset by the threat of high tidal surges in downstream areas. Experts warn that tidal peaks in Can Tho could reach between 2.2m and 2.3m, levels comparable to recent years. This risk is compounded by land subsidence and dike systems that may force tides into urban centers and fruit-growing regions. Authorities in Can Tho and Vinh Long are developing response scenarios and advising the reinforcement of embankments.

## Timeline

### 2026-08-15: Mekong Delta residents prepare for annual flood season

Residents in Dong Thap, Mekong Delta, are preparing nets and equipment in anticipation of the annual flood season and the subsequent rise in aquatic resource availability.

2 sources. https://clstr.news/cluster/mekong-delta-residents-prepare-for-annual-flood-season

### 2026-08-11: Mekong Delta faces low upstream floods and high tidal risks

The Mekong Delta faces a paradox of low upstream flood levels combined with high tidal surge risks, with Can Tho expecting tides near historical records in late 2026.

2 sources. https://clstr.news/cluster/mekong-delta-faces-low-upstream-floods-and-high-tidal-risks

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Cite as: Mekong Delta hydrological and flood risks. CLSTR, https://clstr.news/situations/mekong-delta-hydrological-and-flood-risks