TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 3, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the highest temperature recorded at the Amsterdam Airport Schiphol Station in degrees Celsius on 3 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 Amsterdam Airport Schiphol Station, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM. 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 real-money trader consensus and often diverge from traditional weather analyst forecasts. While meteorologists rely on atmospheric models and historical data, prediction markets incorporate trader beliefs about model accuracy, potential forecast revisions, and tail-risk scenarios. Comparing the market's implied temperature range to official forecasts from KNMI or other Dutch weather services can reveal whether traders expect warmer or cooler conditions than experts currently predict. This gap often signals market skepticism or confidence in near-term forecast updates.
On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Temperature outcomes on Polymarket are typically priced as discrete ranges or point estimates, with each outcome assigned a probability that sums to 100 percent across all options. Traders buy and sell shares representing their belief in specific temperature bands, and the market price of each share reflects the collective odds. As new weather data emerges or forecasts shift, traders adjust positions, moving prices higher or lower. The order book depth and bid-ask spread indicate liquidity and confidence in the market's pricing of each temperature scenario.
The market resolves on Jun 3, 2026, after the highest temperature in Amsterdam on June 3 has been recorded and verified. Resolution depends on official temperature data from a designated weather station or meteorological authority serving Amsterdam. The outcome is determined by the single highest temperature reading during the specified day, measured in degrees Celsius. Once the data is confirmed and published, the winning outcome is locked in and traders' positions settle according to their holdings in the correct outcome.
Major weather pattern shifts, updated seasonal forecasts, and real-time atmospheric data will drive price movements. A sudden high-pressure system moving into Western Europe could raise market odds for higher temperatures, while an unexpected cold front or cloud cover could lower them. Revisions to official weather models, especially from KNMI or European forecasting centers, often trigger sharp repricing. As June 3 approaches, actual daily weather observations and intra-day temperature trends will increasingly influence trader positioning. Unusual climate anomalies or extreme heat events in neighboring regions may also shift sentiment about Amsterdam's temperature outcome.