Highest temperature in Guangzhou on July 23?

Platform comparison

Market context

Guangzhou’s heat has already pushed conditions towards the upper end of the market’s quoted range, with the live session showing **91°F** and a dangerous RealFeel® of **109°F** under high humidity, which makes a late-day peak above the low-30s Celsius plausible even before the airport station’s final reading is locked in.[2] The market is currently leaning towards **36°C**, with **35°C** next, so the crowd is effectively pricing a very hot day rather than an outlier spike beyond that band.[1]

For context, July in Guangzhou is normally hot, humid and rain-affected, with typical daytime highs around **32°C** and heavy monthly rainfall, so a reading in the mid-30s sits above average but not outside the city’s summer pattern.[4][5] That is consistent with the current 0% YES price, which implies traders see the settlement range as still broad enough that the final recorded maximum could land below the specific bracket needed for a YES outcome. The key historical frame is that Guangzhou’s July weather often delivers oppressive heat, but rainfall and cloud cover can cap the day’s true maximum.

The main catalyst to watch is the actual hourly evolution at **Guangzhou Baiyun International Airport Station**, because this market resolves to the highest temperature recorded there on 23 July, not the citywide forecast headline.[1] In practical terms, traders should focus on whether the day’s hottest readings arrive before any afternoon convection or rain-cooled drop, since Wunderground’s airport history page will determine the official outcome.[1] The current setup is therefore leaning on **live heat intensity versus precipitation timing**, rather than any scheduled political-style event or announcement.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Guangzhou on July 23? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.