Wellington, New Zealand's capital city on the North Island, will experience autumn weather on May 2, 2026. Early autumn in Wellington typically brings mild daytime temperatures as the Southern Hemisphere transitions toward winter. Historically, Wellington's maximum temperatures in early May range from 12–15°C under normal conditions, making a high of 10°C or below an unusually cold outcome for that time of year. The current market price at 0% YES odds reflects strong trader conviction that the forecasted maximum will comfortably exceed the 10°C threshold, consistent with both seasonal climatology and contemporary meteorological forecasts. This market demonstrates the precision of prediction markets on hyper-specific weather events—even a 10°C boundary, which represents notably cool but not extreme temperatures for late autumn, can be priced at near-zero probability when consensus forecasts point decisively warmer. The resolution relies on the official maximum temperature recorded at Wellington's meteorological station on May 2, making this a straightforward, verifiable outcome with clear meteorological foundations.
Deep dive — what moves this market
Wellington's climate is heavily influenced by its geographic position on the Cook Strait between New Zealand's North and South Islands. The city experiences significant maritime influence, with moderate temperatures year-round and frequent wind. By May 2, 2026, the Southern Hemisphere will be roughly three weeks into autumn, with the winter solstice still three months away. Typically, Wellington's maximum temperatures during early May average 13–14°C, with historical lows occasionally dipping to single digits during colder-than-average events. The threshold of 10°C represents about 2–4°C below the normal May high, a notably cool but not historically unprecedented outcome for that calendar date. Factors that could push the market toward YES (temperatures at or below 10°C) include an unseasonable cold snap driven by polar air intrusion from the Southern Ocean, or a prolonged low-pressure system with persistent cloud cover and precipitation that suppresses daytime heating. Such events do occur in Wellington, particularly in years with strong La Niña patterns affecting New Zealand's climate. Historical precedent exists: late-autumn cold spells have brought maximum temperatures below 10°C in Wellington, though they are relatively uncommon in early May specifically. Conversely, factors supporting the current NO pricing (temperatures above 10°C) dominate near-term expectations. Subtropical air flow from the north, high-pressure systems promoting clear skies and solar heating, and the lingering warmth of autumn all work toward elevated temperatures. Current meteorological forecasts typically show May 2 tracking toward the seasonal norm of 12–15°C. The market's zero-probability YES outcome suggests traders view a 10°C outcome as effectively impossible given baseline climatology and consensus forecasts. Comparable calendar-date temperature markets reflect the trade-off between natural weather variability and forecast confidence. This market's pricing suggests traders regard a May 2 high of 10°C or below as outside the reasonable bounds of forecast uncertainty—a 4–6°C miss from the seasonal average. The resolution mechanism is clean: the official maximum temperature from New Zealand's National Institute of Water and Atmospheric Research (NIWA) or the primary Wellington meteorological station on May 2 determines the outcome. Markets of this granularity serve traders and weather enthusiasts interested in testing specific forecast boundaries and understanding the relationship between climatology, ensemble forecasts, and prediction-market pricing.
What traders watch for
NIWA official forecast for May 2 Wellington maximum temperature released; any shift below 12°C would challenge the 0% YES odds.
Real-time May 2 weather: cloud cover, polar air intrusion, or rain suppressing daytime heating could cool the high below 10°C.
Historical May cold-snap precedent in Wellington; strong La Niña patterns increase odds of below-threshold outcomes.
Final meteorological update on May 1 evening may reset market expectations if forecasts shift toward cooler scenarios.
How does this market resolve?
Market resolves based on the official maximum temperature recorded in Wellington on May 2, 2026. YES wins if the highest temperature is 10°C or below; NO wins if it exceeds 10°C.
Prediction markets aggregate trader expectations into real-time probability estimates. On Polymarket Trade, every market question resolves YES or NO based on a specific event outcome; traders buy shares of the side they believe will resolve positively. Prices range 0¢ (certain no) to 100¢ (certain yes) and naturally reflect the crowd-implied probability of YES. This page summarizes the market state for readers arriving from search; for live trading (place orders, see order book depth, execute a trade) open the full interactive page linked above.
