Heat islands

Polygons representing heat islands on the ground surface. A heat island is defined as the difference in temperatures observed between two surrounding environments at the same time. The different temperature differences are mainly explained by the type of soil layout such as the vegetation cover, the impermeability of the materials and the thermal properties of the materials. This difference can reach more than 12°C. The 2020-2030 Montreal Climate Plan aims, among other things, to improve planning and regulatory tools in urban planning. Montréal has thus committed to updating the climate change vulnerability analysis, including the heat island map, carried out as part of the 2015-2020 Agglomération de Montréal Climate Change Adaptation Plan and to integrating it into the next urban and mobility plan. The urban heat island maps were produced in collaboration with the Department of Geography of the University of Quebec in Montreal (UQAM). The data can also be viewed on the [interactive heat island map] (https://bter.maps.arcgis.com/apps/webappviewer/index.html?id=157cde446d8942d7b4367e2159942e05).This third party metadata element was translated using an automated translation tool (Amazon Translate).

Data and Resources

Additional Info

Field Value
Last Updated January 16, 2026, 20:41 (UTC)
Created January 16, 2026, 20:41 (UTC)
contains_pii non
crisis_categories Canicules
criticality_level Faible
data_formats GEOJSON; GeoTIF; HTML; SHP
fair_openness Level 2 - Machine-readable
geographic_scope Québec
sensitivity_level Faible
source_inventaire Inventaire_W
source_url https://open.canada.ca/data/en/dataset/dbdfbdba-0725-470d-a23e-da69dbedc4e6
subject form_descriptors, nature_and_environment, science_and_technology
update_frequency as_needed
year_most_recent 2025-05-01 17:45:37.769000
year_start 2022-07-06 12:22:23.665000