Highest temperature in Shenzhen on July 8?

Platform comparison

Market context

The real-world event driving this market is the highest temperature recorded at Shenzhen Bao'an International Airport on 8 July 2026, measured in degrees Celsius via Wunderground. Current crowd-implied probability sits at 0% for a YES outcome, suggesting traders believe the temperature will fall outside the specified range, likely due to the seasonally cool start to July in this region.

Historical data frames this low probability credibly: on 8 July 2025, the station recorded a thunderstorm with heavy rain, and temperatures peaked near 75°F (23.9°C), well below typical summer highs [5]. Climate norms for early July in Shenzhen show lows around 25.8°C (78.5°F) and peaks only reaching 30.9°C (87.5°F) by late July, meaning early-month days rarely breach extreme thresholds [7]. This pattern aligns with the 0% market stance, as early July historically lacks the intense heatwaves seen later in the month.

Traders should monitor morning rain forecasts and thunderstorm schedules, as wet conditions suppress peak temperatures significantly. AccuWeather predicts morning rain and mostly cloudy skies for 8 July, with a high of 87°F (30.6°C) but heavy cloud cover limiting solar heating [2]. Programmatic approaches would parse Wunderground’s hourly data feeds to flag deviations from the 30°C threshold, while conditional orders could trigger on real-time updates showing precipitation intensity exceeding 0.8 inches, a level predicted for Tuesday [1]. No recent announcements suggest anomalous heat, reinforcing the current market view.

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 Polymarket Bot 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

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 Polymarket Bot UK. 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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK 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.