Pronóstico: Highest temperature in Seoul on July 5?

Platform comparison

Market context

The underlying real-world event is the peak temperature recorded at Incheon International Airport on 5 July 2026, a date falling squarely within South Korea’s monsoon season. Historical data shows Seoul’s July highs typically range between 21°C and 28°C, with average daytime temperatures around 28°C and frequent rainfall—roughly 12 rainy days per month[1][2]. While extreme heat spikes above 30°C are possible, they are less common during the wet, humid monsoon period, which often suppresses peak temperatures despite high humidity levels of 86%[1]. This climatic pattern explains why the market currently prices the “YES” outcome at 0%, reflecting a strong consensus that temperatures will stay within the lower, more typical range.

Traders should monitor the Korea Meteorological Administration’s short-range forecasts for any sudden shifts in cloud cover or precipitation probability, as these directly influence peak temperature outcomes[5]. Recent travel advisories highlight that late July includes Jungbok, one of Korea’s three hottest days, suggesting a potential heatwave window that could extend into early July if atmospheric conditions align[10]. Additionally, the monsoon’s intensity—averaging 289 mm of rainfall in July—remains a critical dependency; any unexpected reduction in rain could allow temperatures to climb closer to the 30°C threshold[1]. Watching for official heatwave announcements from the KMA will be essential, as these often precede temperature spikes that could alter market expectations.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Pronóstico: Highest temperature in Seoul on July 5? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Qué Es, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 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.

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 Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.