Highest temperature in Shenzhen on July 10?

Platform comparison

Market context

Shenzhen is currently under a yellow high-temperature warning issued by the local meteorological observatory at 08:10 today, yet the immediate forecast is dominated by heavy thundershowers and a 100% chance of rain, which will suppress surface temperatures significantly below the 33°C maximum predicted for Saturday afternoon[1][5]. The crowd-implied 0% probability for a high-temperature range on 10 July reflects this acute shift from heat to storm; the last 24 hours saw a rapid upgrade to an orange rainstorm warning, with 30–50 mm of precipitation expected in the next 1–2 hours, effectively neutralising any heatwave conditions for the settlement window[5].

Historically, July is Shenzhen’s hottest month with an average high of 89°F (32°C), but early July often sees cooler dips, such as the 25.8°C low recorded on 8 July this year, contrasting with the peak of 30.9°C expected later in the month[4][8]. The current 0% probability aligns with comparable cases where early-month thunderstorms override seasonal heat, as seen in June 2026 when daily highs ranged only 89–92°F despite high humidity, suggesting that the storm front today will keep temperatures well below the thresholds required for a high-temperature resolution[2].

Traders should monitor the National Weather Service’s hourly updates for ZGSZ and the Shenzhen Meteorological Observatory’s warning escalations, as the orange rainstorm signal may persist through the settlement deadline[3][5]. The key dependency is the duration of the thundershowers forecast for Friday morning; if the rain clears by afternoon, temperatures could rise toward 32°C, but sustained precipitation will likely cap highs near 26–28°C, rendering a high-temperature outcome improbable[1][10]. No new typhoon announcements are expected, but the heavy precipitation remains the primary catalyst for temperature suppression.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 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 Today trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.