Wellington's late April climatological mean max hovers around 16.5°C. Current synoptic models indicate a high-probability shift to a persistent south-westerly advection pattern from the 28th, driving cooler Southern Ocean air masses across the region. Forecasted cloud cover will further limit diurnal insolation. The 18°C threshold is an overreach given the current atmospheric setup.
Wellington's late April climatological mean max hovers around 16.5°C. Current synoptic models indicate a high-probability shift to a persistent south-westerly advection pattern from the 28th, driving cooler Southern Ocean air masses across the region. Forecasted cloud cover will further limit diurnal insolation. The 18°C threshold is an overreach given the current atmospheric setup.