GISTDA Satellite Imagery Shows Over 330,000 Rai Flooded Across Seven Provinces in Southern Thailand

On November 25, 2025, the Geo-Informatics and Space Technology Development Agency (GISTDA) under the Ministry of Higher Education, Science, Research and Innovation released an updated assessment of the severe flooding in southern Thailand. The report is based on satellite imagery captured by the Sentinel-1A satellite on 24 November.

According to the satellite data, approximately 334,895 rai of land, equivalent to more than 330,000 rai, across the southern region is currently inundated. The flooding spans seven provinces: Songkhla, Pattani, Phatthalung, Nakhon Si Thammarat, Narathiwat, Yala, and Satun.

Preliminary analysis shows that the hardest-hit areas include low-lying zones, residential communities, and several key transportation routes, many of which have become inaccessible due to high water levels. Flood depths in worst-affected zones range from 1 to over 2.5 meters, making rescue operations significantly more challenging.

GISTDA confirmed that all satellite data and analytical findings have already been delivered to relevant local authorities to support urgent response planning, enabling officials to determine safe routes, prioritize rescue operations, and track the evolving flood situation.

Authorities in the southern provinces have been urged to maintain close monitoring, especially in low-lying residential areas where water levels remain dangerously high. GISTDA emphasized that the flood extent and depth reflect satellite-based estimations and will require on-ground verification to confirm real-time conditions.

Currently, large portions of the affected region remain enclosed by extensive floodwaters, forming what GISTDA describes as a “wall of water” around communities. This has severely restricted mobility and access, heightening the need for precision satellite data to guide relief teams toward the safest and most efficient entry points.

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