Highest temperature in Beijing on July 7?

Platform comparison

Market context

Beijing’s summer heat is already intensifying as July 7 approaches, with the Beijing Capital International Airport Station poised to record its peak daily temperature for the day. The market currently assigns zero probability to any outcome above the lowest range, a stance that contradicts historical patterns where July highs in Beijing routinely exceed 30°C.

Historical data shows July is Beijing’s hottest month, with average maximum temperatures around 33°C and frequent daily highs between 30°C and 36°C[4]. Record temperatures have reached 42°C in early July, such as on 5 July 2010, while the all-time high of 41.9°C occurred on 24 July 1999[7][8]. Even in recent years, China experienced its hottest July on record in 2024, with average temperatures of 23.2°C—the highest since 1961[6]. These cases suggest the current 0% probability is misaligned with climatic reality.

Traders should monitor the Beijing Meteorological Bureau’s daily forecasts and Wunderground’s real-time updates as the settlement window closes at 12:00 UTC on 7 July 2026[4]. No political debates or campaign disclosures influence this weather event; the sole catalyst is the actual temperature reading from the airport station. Recent heatwave reports from Reuters confirm China’s trend toward extreme summer temperatures, reinforcing the likelihood of a high reading this week[3].

Sources: 1 · 2 · 3 · 4 · 5

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 Beijing on July 7? 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

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

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.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Election Predictions UK route into the same order book at 0% fees.

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.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.