Highest temperature in Taipei on July 31?

Platform comparison

Market context

Taipei’s daytime heat on 31 July is normally deep into the low-to-mid 30s Celsius, with July averaging about 33°C and occasional peaks nearer 38°C, so the market is resolving a very warm-summer outcome rather than an unusual outlier. Today’s live reporting is already consistent with that pattern: the Central Weather Administration has issued an orange heat advisory, and temperatures in Taipei have topped 36°C for a third straight day[1][4][6].

For a programme-driven trader, the current 0% crowd price looks more like an implementation artefact than a credible weather view, because the settlement source is a specific intraday maximum at Taipei Songshan Airport, not a citywide daily mean. The practical read is to monitor the Wunderground history page for the airport station and any late-afternoon rise in the day’s high; if you are automating, the key dependency is the highest recorded temperature before the settlement window closes, with the result determined by the Celsius value shown by that station history page[6][10][12].

The main catalysts are the local heat bulletin, actual afternoon convection, and whether Taipei’s urban heat persists through the official observation window. In similar Taipei heat events, temperatures have reached 38.3°C in May and 39.7°C in July in prior years, which shows the city can overshoot its July norm when heat builds under clear, humid conditions[11][18]. For copy-trading or conditional-order setups, the useful trigger is not the forecast headline alone but the live station trend: a sustained 35°C-plus reading by late morning materially increases the chance of a higher daily max, while cloud, rain, or sea-breeze relief would cap the settlement value closer to the low 30s[1][6][10].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Taipei on July 31? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.