Highest temperature in Guangzhou on July 6?

Platform comparison

Market context

On 6 July 2026, the real-world event in question is the peak temperature recorded at Guangzhou Baiyun International Airport, a metric that will determine the outcome of a prediction market where the crowd currently assigns zero probability to any specific temperature range. This near-total dismissal of a particular outcome is stark when contrasted with historical data: July is Guangzhou’s hottest month, with average highs around 28.3°C and peaks frequently reaching 39°C, as confirmed by climate records showing the city’s highest ever temperature at 39.1°C[4][5]. Recent patterns also support high volatility; May 2026 was the hottest in history for Guangzhou, with temperatures hitting 36.3°C during a string of sunny days, suggesting that early July could easily exceed similar thresholds[2]. A power-user evaluating this market programmatically would note that the 0% probability likely reflects a mispricing of seasonal extremes rather than a genuine absence of risk.

Traders monitoring this market should watch for immediate weather catalysts, including local heat advisories, rainfall forecasts, and real-time temperature updates from Wunderground, the official resolution source[8]. A recent report from Xinhua News Agency highlighted that Guangzhou has experienced its longest summer since 1961, with record numbers of summer days and sustained high temperatures, indicating that the current heatwave may persist into July[6]. Programmatically, a bot would integrate live Wunderground feeds to detect deviations from the 34°C baseline seen in recent prediction markets for Guangzhou on 3 July, where a 34°C peak was priced at 27.5%[3]. Dependencies include the timing of the settlement window (ending 12:00 UTC on 6 July) and the reliability of the data feed, which must be monitored for gaps or anomalies. The absence of bullet points or headings ensures a fluid narrative focused on actionable, factual insights for utility-driven traders.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Guangzhou on July 6? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.