Highest temperature in Guangzhou on July 6?

Platform comparison

Market context

Guangzhou is entering its peak summer heatwave on 6 July 2026, with the Baiyun International Airport station poised to record daytime highs that typically exceed 34°C. The crowd-implied probability of 0% for the current temperature range suggests traders believe the day will be unusually cool or that the market’s threshold is set far above historical norms, despite the city’s subtropical monsoon climate guaranteeing long, hot summers from May through September.

Historically, July in Guangzhou sees daytime temperatures consistently staying above 32–35°C, with extremes frequently surpassing 37°C and occasionally reaching 39°C. The average daily high hovers around 33°C (91°F), rarely dropping below 29°C or exceeding 40°C. Given that July delivers the longest daily sunshine hours—around seven hours—and humidity often exceeds 80%, a day failing to reach these ranges would be an anomaly, framing the 0% probability as a likely mispricing unless the range targets a specific, implausibly low threshold.

Traders should monitor real-time Wunderground data for the Baiyun station, as typhoon activity or heavy downpours from July to September could temporarily suppress temperatures. While no scheduled political debates or campaign-finance disclosures directly influence weather, sudden shifts in monsoon patterns or typhoon arrivals remain the primary catalyst. According to AccuWeather’s July 2026 forecast, highs range from 86° to 96°F (30–36°C), reinforcing that the market’s 0% probability leans on an expectation of unseasonable coolness rather than typical July heat.

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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 6? 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

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

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.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

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.