Highest temperature in Taipei on July 13?

Platform comparison

Market context

Taipei is currently overcast with rain showers expected through the morning, suppressing any chance of extreme heat on 13 July 2026. Historical data confirms July is the hottest month for Taipei Songshan Airport, with average highs reaching 33.5°C, yet today’s wet conditions and 78% humidity make a record-breaking temperature virtually impossible [1][2]. The crowd-implied probability of 0% YES reflects this immediate meteorological reality, where precipitation and cloud cover act as a natural thermal brake.

Traders reading this on-chain contract should note that Polymarket prices this outcome using USDC on the Polygon network, where conditional tokens settle automatically once Wunderground publishes the daily maximum [1]. The primary catalyst to watch is the cessation of rainfall and cloud clearance by midday; however, forecasts indicate light rain showers persisting until 20:00 local time, with temperatures peaking only at 33°C (97°F) under partly cloudy skies [3][9]. No official heat announcements are scheduled, as the Central Weather Administration currently reports no extreme heat warnings for the region [5].

Given the settlement window ending at 12:00 UTC, the market resolves before the afternoon peak, locking in the morning’s suppressed temperatures. Recent weather history for mid-July shows consistent moderation when rain is present, contrasting with dry July days that often exceed 35°C [4]. The 0% probability aligns with the on-chain mechanics: if Wunderground records a temperature below the threshold by the settlement deadline, the YES position expires worthless, and USDC liquidity remains with the NO holders.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.