Highest temperature in Guangzhou on August 4?

Platform comparison

Market context

Guangzhou’s weather on 4 August is set by a hot, humid monsoon pattern rather than anything unusual, which is why the market is anchored to a relatively narrow temperature band. Current forecasts cluster around the low-30s Celsius: AccuWeather shows an August daily high range of 89°–93°F and a 4 August high of about 92°F, while the Guangdong provincial forecast for Guangzhou gives 25–31°C with rain[1][8]. That puts the most likely settlement zone well above the threshold implied by a 0% yes price, unless the airport station undercuts the city forecast by a wide margin.

Historically, Guangzhou in August is usually hot enough that midday highs sit around 33°C, with heavy rain more likely to suppress the peak than to break the heat. Multiple climate guides place the month’s typical high near 33°C and note frequent showers, but not persistent cool conditions[12][13][16][18]. BBC observations at Guangzhou/Baiyun Airport also show the station is currently running warm and humid, with 30°C observed conditions and light winds, which supports the view that the day is biased towards a moderate-to-high maximum rather than a low outlier[6].

The main catalyst to watch is the airport station’s actual daytime rainfall timing: if showers arrive early or repeatedly, they can cap the highest reading below forecast highs; if breaks in cloud and rain open up around noon or early afternoon, the maximum can still push into the low 30s. Traders are effectively leaning on the latest local forecast stack, with the clearest public signal coming from the official city forecast and the broader August guidance rather than any event-driven catalyst[8][1]. Reuters-style reporting is scarce for weather markets of this type; the relevant input is the progression of local observations and short-range forecasts into the afternoon.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Guangzhou on August 4? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

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