Highest temperature in Shenzhen on July 10?

Platform comparison

Market context

The underlying event is the peak temperature recorded at Shenzhen Bao’an International Airport on 10 July 2026, a date that historically sits within the city’s warmest ten-day window. Current crowd-implied probability of 0% for any specific high-temperature range suggests traders are either hedging against extreme volatility or misreading the baseline climatology. Historical data shows July is the hottest month, with an average high of 32°C (89°F) and lows rarely dipping below 27°C [2]. In July 2025, temperatures hovered between 24°C and 32°C, confirming that extreme highs are plausible but not guaranteed [1]. The 0% probability likely reflects a lack of confidence in a single range rather than an expectation of cold conditions, as Shenzhen’s summer climate consistently delivers highs near or above 30°C.

Traders approaching this market programmatically should monitor real-time Wunderground feeds for the 10 July maximum, integrating conditional orders that trigger on temperature thresholds above 31°C. Key catalysts include the morning thunderstorm forecast for 10 July, which could suppress peak temperatures if rainfall persists [5]. Recent forecasts indicate a heat index of 103°F (40°C) with light winds, suggesting high potential for elevated readings if cloud cover clears [5]. A trader should also watch the 1–10 July warmest stretch pattern, where highs average 27.9°C (82.2°F), indicating a baseline that may be exceeded under clear skies [8]. The settlement window ending 12:00 UTC on 10 July requires precise timing for data ingestion, making automated scripts reliant on minute-level Wunderground updates essential for accurate positioning.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Shenzhen on July 10? 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

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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

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.