Where will 2026 rank among the hottest years on record?

Platform comparison

Market context

Global temperatures in 2026 are tracking as a top-tier warm year, yet scientific consensus suggests it will likely miss the top three spots. The World Meteorological Organization predicts an 86% chance that one year between 2026 and 2030 will surpass 2024 as the hottest on record, implying 2026 itself may not claim the number one rank [1]. Berkeley Earth explicitly forecasts 2026 to rank roughly fourth, assigning a 51% probability to that specific outcome while noting the likelihood of record-breaking warmth is low [2]. This historical framing aligns with the current 33% crowd-implied probability for a top-three finish, as recent data shows January and February 2026 ranking only fifth for those months, while May 2026 was the second-highest in the 177-year record [3][8].

Traders should monitor the evolution of ocean cooling patterns, which Berkeley Earth identifies as the primary driver keeping 2026 similar to or slightly cooler than 2025 [2]. The critical catalyst is the release of full-year Global Land-Ocean Temperature Index data, which will settle the market immediately once available, regardless of future revisions [2]. While the WMO highlights that Arctic anomalies will likely remain higher than the global mean, the specific ranking depends on whether natural variability allows 2026 to overtake 2025 or 2023 [1]. No scheduled political debates or campaign-finance disclosures influence this weather-science outcome; the market leans entirely on the pending annual temperature report from major monitoring agencies like NOAA and NASA [4][9].

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 Where will 2026 rank among the hottest years on record? 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

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

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.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

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.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.