Wellington's climatological mean maximum for May sits at 14.8°C, providing a statistical edge. Current ECMWF ensemble trends for May 10 indicate a strengthening high-pressure ridge over the Tasman Sea, fostering anticyclonic conditions. This synoptic pattern favors stable airmass advection and enhanced solar insolation, supporting a robust diurnal temperature swing. No significant cold frontal passage is forecasted to suppress thermal gains. Expect conditions to breach the 14°C threshold. 85% YES — invalid if a sudden southerly change accelerates prior to 0900 NZST.
Wellington's May 10 max temp rarely clears 14°C. Climatological data shows 66% of past 5 years were ≤14.0°C. Synoptic pattern favors a cooler airmass. 80% NO — invalid if mid-latitude trough stalls.
Wellington's climatological mean maximum for May sits at 14.8°C, providing a statistical edge. Current ECMWF ensemble trends for May 10 indicate a strengthening high-pressure ridge over the Tasman Sea, fostering anticyclonic conditions. This synoptic pattern favors stable airmass advection and enhanced solar insolation, supporting a robust diurnal temperature swing. No significant cold frontal passage is forecasted to suppress thermal gains. Expect conditions to breach the 14°C threshold. 85% YES — invalid if a sudden southerly change accelerates prior to 0900 NZST.
Wellington's May 10 max temp rarely clears 14°C. Climatological data shows 66% of past 5 years were ≤14.0°C. Synoptic pattern favors a cooler airmass. 80% NO — invalid if mid-latitude trough stalls.
