Urban heat

Cities create their own microclimates by influencing the surrounding atmosphere and interacting with climate processes. The most striking characteristic of an urban microclimate is the urban heat island (UHI) effect.

Air temperatures in Sydney are expected to increase in the future as a result of climate change and increasing urbanisation.

Office of Environment and Heritage has used the projections from NARCliM to provide updated information on the projected impacts of land use change on urban heat in the near future (2036).

Research results

Temperature changes in summer for each projected land use change

  • Climate change is projected to increase temperatures in Sydney with maximum temperatures projected to increase by 0.7°C by 2030.
  • Change in land-use has the potential to double the temperature increases caused by climate change in urban environments.
  • Change in land-use from grasslands to medium density has the greatest increase in heat (0.5°C – 0.9°C).
  • Increasing already urbanised areas from medium to high density decreases temperatures due to the building height and the influence of seas breeze in Sydney CBD.


Download information

Biodiversity Technical Report
Biodiversity Technical Report
Biodiversity Technical Report
Urban Heat Maps

ASHX - 32.3 mb

Biodiversity Technical Report
Urban Heat Data

ASHX - 1.2 mb