Highest temperature in Guangzhou on July 6?

Platform comparison

Market context

Guangzhou is entering its peak summer heat phase today, with the real-world event of record-high temperatures looming over the Baiyun International Airport Station. The current 0% crowd-implied probability for the lowest temperature range reflects a market consensus that sub-30°C outcomes are virtually impossible under typical July conditions, barring extreme weather disruptions.

Historical data frames this probability starkly: July 1 previously hit 39.1°C in 2004, and average highs for the month hover around 33°C, rarely dipping below 29°C [1][2]. Even with recent forecasts showing daily highs between 86°F and 96°F (approx. 30°C to 35°C), the statistical likelihood of a 27°C or below outcome remains negligible, aligning with the market’s pricing [2]. The only credible catalyst to break this pattern would be a significant tropical storm or heavy rainfall event, which could force temperatures into lower bands [8].

Traders should monitor the absence of such storm systems closely, as their presence is the sole reliable dependency capable of altering the heat trajectory. Recent weather reports confirm Guangzhou expects 15 to 22 days of rain in July, yet no major tropical storm has been announced for July 6, 2026, suggesting the heat will persist [4]. Without a confirmed storm schedule or heavy rainfall announcement, the market’s 0% pricing for the lowest range appears well-founded, and any shift would require a sudden, unforecasted weather dependency.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Guangzhou on July 6? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.