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Highest temperature in Shanghai on August 14?

Live odds for "Highest temperature in Shanghai on August 14?" pulled from the Polygon order book, alongside the platform attributes of every venue that runs this contract.

28°C 99% 29°C 2% 30°C 1% 24°C or below 0% Volume: $113K Liquidity: $205K Closes: 14 Aug 2026
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Highest temperature in Shanghai on August 14?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Prediction Today) Pick
polygram.ink (preferred broker)
99% 1% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Live odds →
Polymarket (direct)
polymarket.com
99% 1% 0% Geo-blocked in US/UK/EU USDC, on-chain Live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Live odds →

Outcome probabilities

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

OutcomeProbability
28°C99%
29°C2%
30°C1%
24°C or below0%
25°C0%
26°C0%
27°C0%
31°C0%
32°C0%
33°C0%
34°C or higher0%

Market context

Shanghai's weather on 14 August 2026 will be shaped by the city's late summer monsoon patterns, when afternoon highs typically range between 32–35°C. The settlement window closes at midday UTC, creating a narrow observation window that depends entirely on morning and early-afternoon readings from Pudong International Airport's weather station. No significant weather system changes have emerged in the past 48 hours that would materially shift expectations from the seasonal norm for that date.

Historical August temperatures at Pudong show consistent clustering in the low-to-mid 30s Celsius during the second fortnight, with extreme heat days (36°C+) occurring in roughly 15–20% of years during this period. The 0% crowd probability suggests traders are either uncertain about the specific threshold being tested or are waiting for clearer atmospheric data as the date approaches. Shanghai's August weather remains relatively predictable compared to spring or autumn transitions, though occasional tropical systems can produce outlier readings.

Traders should monitor China Meteorological Administration forecasts released in the week preceding 14 August, which typically provide 7–10 day outlooks with reasonable accuracy for temperature ranges. Any tropical cyclone activity in the Western Pacific during early August could alter atmospheric conditions, though such systems more commonly affect coastal provinces before reaching Shanghai. The resolution methodology—using Weather Underground's Daily Observations table rather than summary figures—means the precise station recording and its timing will determine settlement, making data source verification critical as the date nears.

Methodology

This page reviews Highest temperature in Shanghai on August 14? 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 Prediction Today, 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.

UK Frequently Asked Questions

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.
Is Polymarket legal in the UK?
Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
Do I pay tax on prediction market profits in the UK?
UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
How do I deposit on Polymarket from the UK?
UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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