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 settle this market. The resolution mechanism pulls historical data from Wunderground, with settlement in USDC against the temperature range that captures the day's peak reading in Celsius. The market currently shows 0% implied probability across all outcomes, suggesting either incomplete price discovery or pending liquidity injection ahead of the settlement window closing at 12:00 UTC on the resolution date.

Shenzhen's late-May climate sits at the threshold between spring and early summer, with historical highs typically ranging between 28–32°C. The city experiences monsoon influence and occasional tropical systems during this period. Comparable May 30th records from prior years provide the clearest baseline: reviewing Wunderground archives for Bao'an station shows temperatures clustering in the upper 20s to low 30s Celsius range, though outlier days driven by weather systems can push higher. The 0% crowd probability likely reflects the market's nascent state rather than conviction that no temperature will be recorded.

Traders should monitor China Meteorological Administration forecasts released in the weeks preceding late May, as tropical cyclone activity in the South China Sea can materially shift Shenzhen's temperature profile. Any significant weather system tracking toward the region in early-to-mid May would warrant position adjustments. Settlement depends entirely on Wunderground's historical data capture for that specific station; connectivity or reporting gaps at Bao'an would affect resolution certainty. USDC settlement mechanics remain standard across btc-prediction.bet's weather cluster, with no funding rate or macro tie-ins material to this particular contract.

Methodology

This page reads Highest temperature in Shenzhen on May 30? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed for comparison. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

Where can I trade this market with the lowest fees?

On BTC Prediction, 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.

Is this market available outside the US?

BTC Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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, BTC Prediction 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.