Climate risk in São Luís
Maranhão, Brazil · 1M people in the urban area
What threatens São Luís most
- Drought
- Low-Medium WRI Aqueduct
- Water stress
- Low WRI Aqueduct
- River flood
- 0.33 m in a 100-year flood
Tsunamis and landslides are not rated for a single city here. Climate risk profile of Brazil
São Luís had 365 days in 2025 when the night never cooled below 20 °C.
São Paulo: 48 days.
São Luís's climate in the 2050s
2041-2060 compared with 1991-2020, moderate emissions
By the 2050s, São Luís is projected to have a climate no large city has today. The nearest, Semarang (Indonesia), is far from it.
No place on Earth matches it well today either. Colombia: the place on the map
+1.1°C
Mean temperature over the year
+1.1°C
Highest in the warmest month
+1.1°C
Lowest in the coldest month
-2%
Precipitation over the year
Under high emissions, no large city has such a climate today; the nearest is Semarang (Indonesia).
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How close the match is: 6.6 σ to the climate of Semarang 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.
Where else São Luís stands out
0.33 m
River flood depth, 100-year event
São Paulo: Dry at the city centre point.
Higher than in 91% of the world's 630 large cities
23 days
Days with 20 mm of rain or more in 2025
São Paulo: 8 days.
Higher than in 90% of the world's 630 large cities
Hazards at São Luís
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.
| Hazard | São Luís | Among large cities | In Brazil |
|---|---|---|---|
| Hot days in 2025, over 35 °C | 0 days | ||
| Tropical nights in 2025, over 20 °C | 365 days | Among large cities: above 93% | In Brazil: 1 of 22 |
| Hottest day of 2025 | 31°C | Among large cities: above 11% | In Brazil: 20 of 22 |
| Warming by 2050, moderate emissions | +1.4°C | Among large cities: above 13% | In Brazil: 9 of 22 |
| Days with 20 mm of rain or more in 2025 | 23 days | Among large cities: above 90% | In Brazil: 4 of 22 |
| River flood depth, 100-year event | 0.33 m | Among large cities: above 91% | In Brazil: 4 of 22 |
| Coastal flood depth, 100-year event | Dry at the city centre point | ||
| Sea level rise by 2050, moderate emissions | 218 mm | Among large cities: above 61% | In Brazil: 5 of 14 |
| Water stress | Low (<10%) | Among large cities: above 0% | In Brazil: 12 of 22 |
| Drought risk | Low-Medium | Among large cities: above 1% | In Brazil: 19 of 22 |
| Earthquake shaking, once in 475 years | 0.02 m/s² | Among large cities: above 3% | In Brazil: 12 of 22 |
| Land burned in an average year | 0% | ||
| Cyclone wind, once in 100 years | 0 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 São Luís on the live map
See how deep a river flood reaches around São Luís on the live map
0.33 m © OpenStreetMap Large cities near São Luís
- Belém · Brazil
- Fortaleza · Brazil
- Vila Velha · Brazil
- Natal · Brazil
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In a line
Source: Criora (criora.com), based on ECMWF, NEX-GDDP-CMIP6, WRI, IPCC, GSHAP, GFED500
APA
Criora. (2026). São Luís, Brazil: climate risk profile [Data set]. Retrieved November 2, 2026, from https://criora.com/atlas/BRA/sao-luis BibTeX
@misc{criora_atlas_BRA_sao_luis_2026,
author = {{Criora}},
title = {São Luís, Brazil: climate risk profile},
year = {2026},
url = {https://criora.com/atlas/BRA/sao-luis},
urldate = {2026-11-02}
} Each reading stays under its source's terms; the sources are named on this page.
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