Highest temperature in Shenzhen on July 6?

Platform comparison

Market context

Shenzhen is entering its peak summer heatwave, with July historically delivering the highest temperatures of the year at Bao'an International Airport. The current crowd-implied probability of 0% for a specific high-temperature range suggests traders are betting the day will remain below that threshold, likely due to the forecasted 25 rainy days in July 2026 and the high precipitation typical of June and July [2][4]. This heavy rainfall often suppresses daytime highs, creating a natural ceiling that aligns with the market's low confidence in extreme heat.

Historically, July averages a high of 89°F (32°C) at this location, with temperatures rarely exceeding 93°F (34°C) [2]. Comparable cases from recent years show that even during intense heatwaves, the combination of monsoon rains and cloud cover frequently keeps maximums near 32–33°C, preventing the extreme spikes required to hit higher temperature brackets [6][9]. The 0% probability reflects this pattern: traders recognise that the forecasted 32°C maximum for 6 July is unlikely to breach the upper limits of the market's defined ranges [6].

Traders should monitor the real-time updates from Wunderground and the National Weather Service for any sudden shifts in cloud cover or wind direction, which could alter the day's thermal profile [1][3]. The primary catalyst is the timing of the next thunderstorm system; if heavy downpours arrive before 14:00, the maximum temperature will likely stay capped near 32°C, reinforcing the current market stance [3][7]. No major typhoon announcements are currently pending, but the high probability of rain (100% chance in similar recent forecasts) remains the dominant factor limiting temperature extremes [3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Shenzhen 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.

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.

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.

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.