Highest temperature in Seoul on July 16?

Platform comparison

Market context

Seoul is bracing for peak summer heat as traders assess the likelihood of extreme temperatures hitting the Incheon International Airport station on 16 July 2026. The market currently assigns a 0% probability to any outcome, yet Polymarket data shows the frontrunner is 29°C at 39%, followed closely by 30°C at 35%, suggesting the zero-implied probability reflects a data lag rather than a genuine consensus on impossible conditions [1].

Historical precedent frames this uncertainty, with Seoul posting a record 37.7°C in early July 2025—the hottest day in 117 years since record-keeping began in 1908 [2]. Another recent peak of 37.1°C during the same early-July window further demonstrates the capital’s capacity for extreme heat, making ranges near 29–30°C plausible rather than anomalous [4]. The average annual temperature of 12.8°C offers little guidance for mid-summer spikes, where daily highs routinely exceed 30°C [5].

Traders should monitor real-time updates from Wunderground, the designated resolution source, which publishes daily historical highs for the Incheon station [1]. No scheduled political debates or campaign-finance disclosures influence this weather event, but sudden shifts in monsoon patterns or heatwave declarations from the state weather agency could act as immediate catalysts. The market leans on the absence of confirmed data for 2026 rather than a forecast of cold, meaning the 0% figure is likely a technical placeholder awaiting the first temperature reading.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Seoul on July 16? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.