Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
37% | 63% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
37% | 63% | 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.
| Outcome | Probability |
|---|---|
| 34°C | 37% |
| 35°C | 27% |
| 33°C | 20% |
| 31°C | 11% |
| 36°C | 8% |
| 32°C | 7% |
| 37°C or higher | 1% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
Market context
# Market Context: Highest Temperature in Shenzhen on August 19, 2026
The market concerns the peak temperature recorded at Shenzhen Bao'an International Airport on 19 August 2026, with settlement based on the Daily Observations table from Weather Underground rather than summary figures. The crowd currently assigns zero probability to any outcome, suggesting either minimal trading activity or genuine uncertainty about temperature ranges at this future date.
Shenzhen's August climate is consistently hot and humid, with historical data showing daily highs typically between 32–34°C. The city experiences its peak summer heat in August, though occasional tropical systems can influence conditions. Reviewing August temperatures from prior years at Bao'an station provides the most reliable baseline: the airport has recorded August highs ranging from 30°C to 36°C depending on weather patterns and atmospheric conditions that particular month. The 0% crowd probability likely reflects the speculative distance of the settlement date rather than any expectation of anomalous temperatures.
Traders monitoring this market should track seasonal weather forecasts released in July 2026, which will offer the first credible guidance on August conditions. El Niño or La Niña patterns, if active during that period, could influence regional temperatures. The specific resolution methodology—requiring Daily Observations data from Weather Underground rather than official meteorological summaries—means traders should verify data availability and historical consistency at that source before committing capital. Tropical cyclone activity in the South China Sea during August could produce cooler, wetter conditions that suppress daily highs.
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Shenzhen on August 19? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
Resolution & payout
For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.
UK Frequently Asked Questions
- How accurate are political prediction markets?
- Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- How fast do political markets react to news?
- High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.
- Are political prediction markets legal in my country?
- It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.
- Are UK election prediction markets available from the UK?
- Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.
Trade Highest temperature in Shenzhen on August 19? on Trump Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →