Highest temperature in Shenzhen on August 8?

Platform comparison

Market context

Shenzhen’s top temperature is likely to land in the low-to-mid 30s Celsius, with several forecast providers clustering around about 33°C to 36°C for 8 August and AccuWeather showing a day high of 97°F, or roughly 36°C.[2][5][6][10][15] That makes the current crowd-implied **0% YES** look materially lower than the weather forecasts themselves, unless the contract is being treated as a specific range rather than an exact print and traders are discounting a mismatch between forecast highs and the station reading at Shenzhen Bao’an International Airport.[2][7][14]

The historical frame is straightforward: August in Shenzhen is typically hot and humid, with average highs around 32°C to 35°C depending on the source, so a high in the mid-30s would be normal rather than exceptional.[1][5][19] Comparable current-day readings also support a warm bias, with midday observations already in the low-to-mid 30s Celsius equivalent and AccuWeather’s hourly path peaking near 97°F in the mid-afternoon.[2][12] Against that backdrop, an implied 0% is hard to reconcile with analyst-style consensus from mainstream forecasters, though the exact contract range still matters because the market settles on the highest temperature recorded in Weather Underground’s Daily Observations table, not the summary high.[8][12]

The main catalysts are the afternoon temperature peak, any isolated thunderstorm activity that arrives too early or too late to blunt the day’s maximum, and whether the Weather Underground station page updates smoothly before the 12:00 UTC settlement window closes.[2][8] AccuWeather has flagged a stray evening thunderstorm, but its own hourly forecast still keeps the hottest period around 3 pm local time, so the key dependency is whether that heat actually prints in the station observations rather than just in forecast models.[2][3] In a cross-platform comparison, sportsbooks or model-driven forecasters would usually sit much closer to the weather services than the current market price does, leaving the contract’s chief risk less about direction and more about resolution mechanics.[8][12]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.

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 Best Prediction Markets. 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets 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.