TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 9, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 9 Jun '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve until the first data point for the following date has been published on the resolution source. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Prediction market odds on Polymarket reflect aggregated bets from thousands of traders and can be compared against traditional weather forecasts from meteorological agencies and climate analysts. While analyst models rely on historical data and atmospheric modeling, prediction markets incorporate real-time information and financial incentives for accuracy. Divergences between market odds and official forecasts may signal either market inefficiency or emerging weather pattern shifts that analysts have not yet fully incorporated into their models.
On Polymarket, the highest temperature in Tokyo on June 9 is priced through a continuous automated market maker that allows traders to buy and sell shares corresponding to specific temperature ranges or outcomes. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Prices reflect the collective probability assigned by the market; higher prices indicate greater confidence in that outcome occurring. Traders profit by correctly predicting the actual high temperature, creating financial incentives for information discovery and accurate pricing throughout the market's lifetime.
The market resolves on Jun 9, 2026, after the highest temperature for June 9 in Tokyo has been recorded. The outcome is determined by official temperature data from a designated meteorological source, typically Japan's national weather service or equivalent authority. Resolution occurs once the final high temperature for that calendar day is confirmed, allowing the market to settle and distribute winnings to holders of the correct outcome shares.
Market prices for Tokyo's June 9 high temperature may shift based on updated seasonal weather forecasts, atmospheric pressure systems, El Niño or La Niña patterns, and historical temperature trends for early June in Tokyo. Major weather events such as typhoons, heat waves, or cold fronts affecting East Asia could trigger significant repricing. Additionally, real-time weather model updates from meteorological agencies and trader interpretation of climate anomalies will influence market odds as the event date approaches.