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Highest temperature in Shenzhen on July 8?

Five-platform snapshot of "Highest temperature in Shenzhen on July 8?" — live Polymarket pricing, plus how Kalshi, Betfair and Manifold structure the same contract.

31°C 100% 25°C or below 0% 26°C 0% 27°C 0% Volume: $96K Liquidity: $88K Closes: 8 Jul 2026
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Highest temperature in Shenzhen on July 8?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Prediction Market UK) Pick
polygram.ink (preferred broker)
100% 0% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle See live odds →
Polymarket (direct)
polymarket.com
100% 0% 0% Geo-blocked in US/UK/EU USDC, on-chain See live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD See live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR See live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) See live odds →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
31°C100%
25°C or below0%
26°C0%
27°C0%
28°C0%
29°C0%
30°C0%
32°C0%
33°C0%
34°C0%
35°C or higher0%

Market context

On 8 July 2026, the real-world event at the centre of this market is the highest temperature recorded at Shenzhen Bao'an International Airport, measured in degrees Celsius and verified by Wunderground. In prediction markets, a YES share pays out if the temperature falls within the specified range (here, 31°C), while a NO share pays out if it does not. The current crowd-implied probability of 0% for YES suggests traders believe 31°C will not be the peak, despite climatology pointing elsewhere.

Historical data frames this probability sharply: July is Shenzhen’s hottest month, with an average high of 89°F (31.7°C) at the airport, making 31°C a below-normal outcome rather than an anomaly [4][5]. Recent markets show similar tension; on 6 July, trader consensus clustered tightly around 30–31°C, with 29°C already confirmed as the peak for that day [1]. This pattern indicates that while 31°C is climatologically typical, short-term variability—such as the mostly cloudy conditions forecast for 8 July with temperatures near 88°F—may suppress the peak below the threshold [6].

Traders should monitor daily weather updates from the National Weather Service and Wunderground, as cloud cover and rain periods can significantly lower maximum temperatures [3][6]. The forecast for 8 July notes mostly cloudy skies with periods of rain overnight, which could keep highs below 31°C, while 9 July promises morning thunderstorms that may further disrupt heat accumulation [6]. No major policy announcements or schedules are expected to influence temperature directly, so the primary dependency remains on real-time meteorological data. The settlement window ends at 12:00 UTC on 8 July, meaning only data up to that point will resolve the market.

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 Prediction Market UK, 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

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.
Do I need to KYC for this market?
On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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