Highest temperature in Shenzhen on August 4?

Platform comparison

Market context

Shenzhen’s heat on 4 August will be set by the day’s peak at Shenzhen Bao'an International Airport Station, with the market resolving against the highest temperature recorded before the settlement window closes at 12:00 UTC. Early August in Shenzhen is typically hot and humid, but it is also one of the wetter parts of the year, which matters because cloud and rain can cap the afternoon maximum even when the air mass is warm.[3][7][20]

The current 0% YES pricing looks most notable because the market is not leaning on a cold snap narrative but on the difficulty of reaching the specific upper bands that usually decide these contracts. Long-run August normals put Shenzhen around 31–32°C for daytime highs, with some sources describing daily highs near 89°F/32°C and rare excursions above 93°F/34°C, while forecasts for the city on 4 August have been clustered around the low 30s with showers or overcast conditions.[1][3][4][7][18] In that context, the market is effectively asking whether the airport station can outperform the broader forecast enough to hit the relevant threshold.

The main catalyst to watch is the final daytime forecast and whether rain bands clear or persist into the warmest hours. The Hong Kong Observatory’s Guangdong forecast for 4 August has Shenzhen at 25–29°C with overcast conditions, while BBC Weather and Met Office outputs point to light or thundery showers rather than strong heat, which would usually dampen upside for the day’s maximum.[5][8][11] Traders should focus on late-morning and early-afternoon observation updates, since the eventual outcome hinges less on the overnight minimum than on whether sunshine breaks through long enough to push the airport station above the expected range.[5][8][11]

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 Shenzhen on August 4? 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.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

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.

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.