Highest temperature in Shenzhen on May 30?

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Market context

On 30 May 2026, the highest temperature recorded at Shenzhen Bao'an International Airport will determine the settlement outcome for this market. The resolution will draw from Wunderground's historical weather database, capturing the peak temperature across all times on that date. The current crowd-implied probability of 0% YES suggests traders are either awaiting further clarity on the specific temperature ranges offered, or the market has not yet attracted sufficient liquidity to establish meaningful odds across available brackets.

Shenzhen's late May climate typically sits within a narrow band. Historical data from the airport station shows May highs consistently ranging between 28°C and 32°C, with occasional spikes to 33°C during particularly warm years. The 2025 May average for the region hovered around 30–31°C, providing a useful baseline for assessing which temperature brackets carry realistic settlement probability. Comparable late-spring weather patterns in the Pearl River Delta region have shown little volatility in this period, as the pre-monsoon transition remains relatively stable before June's more extreme heat arrives.

Traders should monitor the approach to late May for any unusual atmospheric patterns—tropical systems developing in the South China Sea can occasionally push temperatures higher or lower than the seasonal norm, though such disruptions remain infrequent at this time of year. The settlement window closes at 12:00 UTC on 30 May, giving traders access to actual recorded temperatures from the airport station. No major weather forecasts or meteorological announcements are currently scheduled to shift baseline expectations significantly before the resolution date.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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?

On Best Prediction Markets UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets UK triggers a quick verification flow that finishes in 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.