Coastal Flood & Sea Level Rise Intelligence

Storm surge modelling, sea level rise scenarios, and coastal infrastructure risk assessment across all 284 shoreline segments in Hong Kong

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284
Coastal Segments
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6 datasets
Data Layers
🏠
12,840
Properties at Risk
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+0.5m by 2050
SLR Scenario

High-Risk Coastal Zones

Tai O, Lantau Island
Islands District · 840 properties potentially affected
9.1/10
Critical Risk
Avg Elevation
1.2m ASL
Storm Surge Risk
Very High
Seawall Rating
Poor
Last Major Flood
Sep 2023 (Saola)
Tuen Mun Ferry Terminal
Tuen Mun District · 2480 properties potentially affected
7.8/10
High Risk
Avg Elevation
2.1m ASL
Storm Surge Risk
High
Seawall Rating
Moderate
Last Major Flood
Aug 2021 (Kompasu)
Sham Tseng / Tsing Lung Tau
Tsuen Wan District · 1240 properties potentially affected
5.2/10
Medium Risk
Avg Elevation
3.4m ASL
Storm Surge Risk
Medium
Seawall Rating
Good
Last Major Flood
Sep 2018 (Mangkhut)
Lei Yue Mun
Kwun Tong District · 680 properties potentially affected
7.2/10
High Risk
Avg Elevation
1.8m ASL
Storm Surge Risk
High
Seawall Rating
Moderate
Last Major Flood
Sep 2023 (Saola)
Sai Kung Town
Sai Kung District · 420 properties potentially affected
4.8/10
Medium Risk
Avg Elevation
4.2m ASL
Storm Surge Risk
Medium
Seawall Rating
Good
Last Major Flood
Sep 2023 (Saola)

Sea Level Rise Projections

Historical Storm Surge Events

Typhoon Saola 2023
Peak Surge
2.84m
Areas Flooded
18
Damage
HKD 8,400M
Typhoon Mangkhut 2018
Peak Surge
3.38m
Areas Flooded
24
Damage
HKD 14,200M
Typhoon Kompasu 2021
Peak Surge
1.92m
Areas Flooded
12
Damage
HKD 5,600M
Typhoon Hato 2017
Peak Surge
2.14m
Areas Flooded
15
Damage
HKD 7,200M
Typhoon Vicente 2012
Peak Surge
1.64m
Areas Flooded
9
Damage
HKD 3,800M

Beach Water Quality Monitor

Beach Grade E. Coli /100ml Enterococci /100ml Trend
Repulse Bay Grade 1 12 8 → Stable
Shek O Grade 1 18 11 ↑ Improving
Golden Beach, Tuen Mun Grade 2 84 52 → Stable
Silvermine Bay, Mui Wo Grade 2 128 84 ↓ Worsening
Rocky Bay Grade 3 480 240 ↓ Worsening