Low emissions scenario: 0.7 °C warmer by 2040 and 0.7 °C warmer by 2090.


High emissions scenario: 0.8 °C warmer by 2040 and 3.1 °C warmer by 2090.


In Warkworth annual rainfall is expected to marginally decrease by 2090. Mangere is expected to have a marginal increase in annual rainfall by 2090.


Stormwater systems may overflow more frequently during heavy rainfall events.

Cyclone Ex-tropical cyclones will likely be stronger and cause more damage as a result of heavy rain and strong winds.
Sealevel There may be increased risk to coastal roads and infrastructure from coastal erosion and inundation, increased storminess and sea-level rise.

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