Highest temperature in Chengdu on July 31?

Platform comparison

Market context

The event is the **highest temperature** recorded at Chengdu Shuangliu International Airport on 31 July, measured by Wunderground, so the market is effectively a single-day peak-temperature call rather than a monthly average or citywide forecast. Chengdu’s July climate is normally hot, humid and rain-affected, with typical highs around 31°C and some historical July maxima reaching the high 30s°C, which means a 0% crowd-implied probability for the upper temperature bands is unusually pessimistic relative to seasonal norms.[3][10][15][20]

For framing, the key comparison is with other peak-summer Chengdu days: late-July readings in historical tables often sit in the low-to-mid 30s°C, and the seasonal record high cited for July is 37.3°C, so outcomes above the upper end of the usual distribution are possible but still weather-dependent.[3][15] Under German GlüStV-style analysis, this is the sort of weather contract that can face local-law restrictions if offered to German users, while US CFTC reach may matter if a platform or user falls within US derivatives jurisdiction; those issues affect access and compliance rather than the airport temperature itself. “No-KYC up to $1,500” means smaller positions may be available without full identity checks, which can make this market easier to access for low-stakes trading, but it does not remove any jurisdictional or account-level restrictions.

The main catalysts are the official hourly weather path, any midday convection or rain that suppresses heating, and whether Chengdu gets clearer skies and stronger solar warming before the settlement window closes at 12:00 UTC. With the current time already inside the final hours, traders should watch the airport station’s live observations and forecast updates rather than broader city forecasts, because the resolution source is the airport-specific Wunderground history page. If a late-morning rain band or persistent cloud cover holds temperatures down, the upper ranges become harder to reach; if skies clear, the day can still run materially hotter before the window ends.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Chengdu on July 31? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.

Resolution & payout

On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.

FAQ

How are winnings taxed?

Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.

Can I trade anonymously?

Pseudonymously, yes — up to the KYC threshold. Polymarket Tax UK stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.

Are prediction markets gambling?

Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.

Is there a withdrawal cap?

No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).

What if regulation changes?

If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Tax UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.