**Trader sentiment for Wellington’s August 25 minimum temperature centers on the 11–13 °C range, with 12 °C leading at 34.5 % implied probability, followed by 11 °C (29 %) and 13 °C (25 %).** These closely matched odds reflect forecast consensus around an overnight low near 11–12 °C under persistent northwesterly flow. Current model guidance and recent observations show a stable synoptic pattern: northwesterlies (15–25 kt) advecting relatively mild maritime air across the region, with partly cloudy skies and limited radiative cooling. Wellington’s exposed coastal location and frequent wind mix the boundary layer, preventing sharp nocturnal drops typical of calmer inland sites. Sea-surface temperatures around New Zealand remain above the long-term average, further moderating minimums. Differentiating factors among the leading outcomes include small uncertainties in cloud cover and wind strength on the night of the 24th–25th. Slightly clearer skies or lighter winds could allow the thermometer to reach 11 °C, while increased cloud or stronger gusts would likely hold the low near 12–13 °C. No significant cold front or southerly change is indicated in the short term, keeping probabilities for sub-10 °C outcomes low. Updated high-resolution model runs and MetService guidance over the next 24–48 hours will be the key catalysts for any shift in trader positioning.