Criora

Climate risk in Haikou

Hainan, China · 2M people in the urban area

What threatens Haikou most

Cyclone wind
Category 3 once in 100 years IRIS
Water stress
Medium-High WRI Aqueduct
Coastal flood
3.63 m in a 100-year flood

Tsunamis and landslides are not rated for a single city here. Climate risk profile of China

A 100-year coastal flood would stand 3.63 m deep in the centre of Haikou.

Shanghai: Dry at the city centre point.

The highest of the 135 large cities in China.

3.63 m © OpenStreetMap
0 3 m
See how deep a coastal flood reaches around Haikou on the live map

Haikou's climate in the 2050s

2041-2060 compared with 1991-2020, moderate emissions

By the 2050s, Haikou's climate will still be more like its own today than any other large city's. The nearest other is Hanoi (Vietnam).

Climate risk in Hanoi

+1.4°C

Mean temperature over the year

+1.3°C

Highest in the warmest month

+1.4°C

Lowest in the coldest month

0%

Precipitation over the year

Under high emissions, Haikou would stay nearest its own climate today.

Its own climate today is 2.9 σ away. How close the match is: 5.5 σ to the climate of Hanoi today, where under 2 is close and over 4 is no match (Mahony et al. 2017). 3 of 3 climate model runs name the same city. Seasonal temperature and rain are compared, not extremes, city heat or the sea.

Sources: TerraClimate NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6)

Where else Haikou stands out

262 mm

Sea level rise by 2050, moderate emissions

Shanghai: 322 mm.

Higher than in 86% of the world's 205 large cities

20 days

Days with 20 mm of rain or more in 2025

Shanghai: 12 days.

Higher than in 85% of the world's 630 large cities

Hazards at Haikou

Read at the city's centre and compared with the Atlas's 630 large cities. Moderate emissions is the IPCC's scenario SSP2-4.5.

Hot days in 2025, over 35 °C 0 days
Tropical nights in 2025, over 20 °C 268 days Among large cities: above 84% In China: 1 of 135
Hottest day of 2025 33.1°C Among large cities: above 23% In China: 123 of 135
Warming by 2050, moderate emissions +1.7°C Among large cities: above 31% In China: 130 of 135
Days with 20 mm of rain or more in 2025 20 days Among large cities: above 85% In China: 20 of 135
River flood depth, 100-year event Dry at the city centre point
Coastal flood depth, 100-year event 3.63 m Among large cities: above 100% In China: 1 of 135
Sea level rise by 2050, moderate emissions 262 mm Among large cities: above 86% In China: 2 of 31
Water stress Medium-High (20-40%) Among large cities: above 43% In China: 71 of 135
Drought risk Medium-High Among large cities: above 13% In China: 74 of 135
Earthquake shaking, once in 475 years 1.05 m/s² Among large cities: above 64% In China: 34 of 135
Land burned in an average year 0%
Cyclone wind, once in 100 years 52.78 m/s

Flood depth is read in a single 1 km cell at the city's centre, in today's climate. Other parts of the city can still flood. The country page names the deepest point near a coastal city in 2080, so its figure can be higher. See how deep a river flood reaches around Haikou on the live map

Sources: ERA5 Single Levels Daily Statistics NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP-CMIP6) Aqueduct Floods Hazard Maps IPCC AR6 Sea Level Projections Aqueduct 4.0 Water Risk Framework GSHAP Global Seismic Hazard Map Global Biomass Burning at 500 m (GFED500) IRIS: the Imperial College Storm Model dataset About these sources

See the sea level rise around Haikou on the live map

262 mm © OpenStreetMap
0 1,000 mm

Large cities near Haikou

Large cities in China

Climate risk profile of China

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Source: Criora (criora.com), based on ECMWF, NEX-GDDP-CMIP6, WRI, IPCC, GSHAP, GFED500, IRIS: the Imperial College Storm Model dataset

APA

Criora. (2026). Haikou, China: climate risk profile [Data set]. Retrieved November 2, 2026, from https://criora.com/atlas/CHN/haikou

BibTeX

@misc{criora_atlas_CHN_haikou_2026,
  author = {{Criora}},
  title = {Haikou, China: climate risk profile},
  year = {2026},
  url = {https://criora.com/atlas/CHN/haikou},
  urldate = {2026-11-02}
}

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