Highest temperature in Seoul on July 16?

Platform comparison

Market context

Seoul is set to experience its peak summer heat on 16 July 2026, with the Incheon International Airport station serving as the official benchmark for the highest recorded temperature in degrees Celsius. Programmatic traders evaluating this weather event must treat the current 0% crowd-implied probability as a signal to scrutinise historical baselines rather than accept the market’s dismissal of extreme outcomes. The settlement window closes at 12:00 UTC, leaving a narrow timeframe for data verification via Wunderground once the daily maximum is logged.

Historical patterns suggest that dismissing high-temperature scenarios is statistically risky given South Korea’s recent heat trends. In late July 2025, the nation neared 40°C as the hottest summer returned in seven years, with forecasts predicting highs between 32–37°C and persistent tropical nights through early August [1]. This precedent indicates that mid-July temperatures in Seoul frequently breach 35°C, making a 0% probability for any significant heat range appear misaligned with the Korean Meteorological Administration’s long-term climate data for the region.

Traders should monitor the Korea Meteorological Administration’s daily forecasts released each morning, specifically looking for announcements regarding heatwaves or tropical night conditions that could push temperatures above 37°C. The primary dependency is the absence of significant rainfall, as dry conditions combined with high-pressure systems typically drive extreme heat in the capital. Recent reports confirm that through early August 2025, temperatures remained above average with no significant rainfall, creating a repeatable catalyst for extreme heat events that automated bots should flag for conditional order execution [1].

Sources: 1

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Bot UK, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Bot 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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK 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.