Singapore Hit 32°C on June 29: Market Confirmed | Lines.com

Singapore’s Changi Airport Station recorded a daily high of 32°C on June 29, 2026, resolving this Polymarket temperature market in full. The reading confirmed the 32°C outcome band, the single most-traded position heading into the final trading hours. Wunderground data, the designated resolution source, supplied the official figure.

The market opened at 40% implied probability on the 32°C outcome. It closed at 99.9% as the temperature data landed. Traders who held the 32°C position from open captured a 150-percentage-point swing. Total volume reached $73,328, a meaningful signal for a single-day weather resolution market.

Singapore Changi Recorded 32°C on June 29

The Changi Airport Station reading of 32°C placed the day’s high squarely above Singapore’s historical June 29 climatological average of around 29°C. The margin matters because the market offered eleven discrete outcome bands from 24°C or below up to 34°C or higher. A reading of 32°C cleared the 31°C band and stopped short of 33°C, landing precisely in the winning bracket. No rounding ambiguity affected resolution.

The final hours of trading told the story clearly. The 32°C outcome price surged more than 60% in the 24 hours surrounding resolution, finishing at 1.00. Traders moved decisively as weather model guidance and early station data narrowed the range. The 40% opening price reflected genuine uncertainty about afternoon thunderstorm timing, not skepticism about Singapore’s baseline heat.

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How the Market Performed on Singapore’s June 29 Heat

The 32°C market opened at an implied probability of 40%. That figure underpriced the eventual outcome. Singapore’s June daily maximum temperatures cluster near 31°C to 32°C under typical monsoon transition conditions, and the 40% opening price suggested traders were weighing shower interference as a real downside risk. The market corrected sharply once afternoon data confirmed clear enough conditions for the thermometer to reach 32°C.

Total volume of $73,328 with $53,693 trading in the final 24 hours shows where conviction concentrated. The $86,538 liquidity pool provided reasonable price discovery for a micro-duration weather market. Thin markets like this one are susceptible to late-breaking forecast data moving prices fast, and that is exactly what happened. The 40% open to 99.9% close represents a significant mis-pricing that corrected in real time.

What Singapore’s 32°C Reading Means Going Forward

Singapore sits in a region where daily maximum temperatures during June hover near the 31°C to 32°C range under mixed monsoon and inter-monsoon conditions. A 32°C reading on June 29 aligns with the upper end of the climatological distribution for that calendar date. The result does not represent an extreme outlier, but it does confirm that afternoon thunderstorm development on that day was insufficient to cap daytime heating below 32°C. The data doesn’t care about the politics, and here it delivered a result firmly within the known envelope of Singapore’s climate.

For prediction markets structured around discrete temperature bands, the Singapore series highlights a structural challenge. Eleven outcome bins create genuine uncertainty even when the directional answer is clear. The market is pricing uncertainty, not science, and the 40% opening price on 32°C reflected exactly that logic. Future markets on Singapore daily highs in June will likely open with tighter probability distributions on the 31°C to 32°C cluster, given this resolution history.

• Singapore Changi Airport’s June daily high distribution favors the 31°C to 33°C band under current El Nino-neutral to weak La Nina base states.
• Afternoon convective development remains the primary variable suppressing or enabling readings at or above 32°C on any given June day in Singapore.
• Prediction markets with eleven discrete outcome bins on single-day temperature readings will continue to show wide opening distributions even on climatologically likely outcomes.
• Related Polymarket temperature series for regional cities, including Kuala Lumpur, show similar resolution dynamics and can serve as correlated reference markets for Singapore June forecasts.

LINES RESOLUTION VERDICT

CORRECTLY RESOLVED: UNDERPRICED AT OPEN

Here’s what the measurements are telling us: 32°C was always the climatologically defensible answer for Singapore on June 29, and the market’s 40% opening price reflected weather-timing risk more than scientific uncertainty.

What the market showed: The 32°C outcome opened at 40% implied probability, surged to 99.9% as Wunderground data confirmed the Changi Airport reading, and resolved at 1.00. Traders who held from open were rewarded by a market that underpriced a climatologically probable outcome at the start.