Highest temperature in Shanghai on July 12?

Platform comparison

Market context

Shanghai is currently experiencing light rain and strong easterly winds on Sunday 12 July, with temperatures hovering around 30°C and humidity at 84% [8]. This wet, overcast condition directly explains the 0% crowd-implied probability for a high-temperature spike, as the precipitation suppresses solar heating and prevents the air from reaching the extreme peaks typical of mid-summer in the region.

Historically, July is Shanghai’s hottest month, with average highs at Pudong reaching 31°C (87°F) and frequent excursions above 35°C (95°F) during sunny spells [2][6]. However, comparable cases from recent years show that when rain and cloud cover dominate, as they do today, maximum temperatures rarely exceed 32°C [3]. The current probability reflects this deviation from the seasonal norm, where the absence of clear skies makes a record-breaking heatday statistically improbable.

Traders should monitor the persistence of the rain system and any shifts in wind direction, as a sudden clearance could alter the thermal trajectory before the settlement window closes at 12:00 UTC [8]. The primary catalyst is the weather pattern itself; no political debates, campaign disclosures, or scheduled conventions influence this outcome. With the BBC reporting continued light rain and gusty winds through the afternoon, the market leans heavily on the immediate meteorological forecast rather than any external event [8].

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 Shanghai on July 12? 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.

FAQ

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 Trump Prediction route into the same order book at 0% fees.

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.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

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.