Highest temperature in Shenzhen on July 17?

Platform comparison

Market context

Shenzhen faces its annual peak heat window on 17 July, with the Shenzhen Bao’an International Airport Station expected to record the day’s maximum temperature in degrees Celsius. The market currently assigns a 0% implied probability to the “YES” outcome, suggesting the crowd believes the temperature will fall outside the specific range tied to that binary resolution, despite July being the city’s hottest month.

Historical data frames this near-zero probability as an outlier when weighed against typical July conditions. The monthly average high in Shenzhen reaches 32°C (90°F), with 17 rainy days and heavy precipitation common due to the subtropical high and typhoon activity [3]. In comparable years, temperatures frequently exceed 30°C, making a 0% chance of hitting a high-temperature range statistically unusual unless the range is set exceptionally low or the market misinterprets the settlement criteria.

Traders should monitor real-time forecasts for heavy precipitation and shower activity, which can suppress peak temperatures. Current hourly data shows showers with a 70% chance of precipitation and a RealFeel® of 92°F (33°C), though actual recorded highs may dip below 32°C if rain persists [2]. A key catalyst is the Thursday forecast of heavy precipitation exceeding 0.8 inches, which could lower the day’s maximum temperature and validate the crowd’s bearish stance on high-temperature outcomes [1].

Sources: 1 · 2 · 3

Methodology

This page reviews Highest temperature in Shenzhen on July 17? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi vs Polymarket, which mirrors the Polymarket order book at 0% fees.

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 Kalshi vs Polymarket. 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.

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.

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.