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 19, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the highest temperature recorded at the King Abdulaziz International Airport Station in degrees Celsius on 19 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 King Abdulaziz International Airport Station, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN. 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the King Abdulaziz International Airport Station in degrees Celsius on 19 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 King Abdulaziz International Airport Station, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN. 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 often diverge from traditional meteorological forecasts because they incorporate real-time trader sentiment, historical bias corrections, and forward-looking expectations. While weather analysts publish point estimates and confidence intervals based on atmospheric models, this market aggregates the distributed knowledge of many participants betting with real capital. Comparing the implied probability from market odds to the confidence levels in official forecasts can reveal where traders see additional risk or opportunity. Both sources inform each other; as new meteorological data releases, market prices typically adjust to reflect updated expert consensus.
On Polymarket, traders set prices by buying and selling shares representing different temperature ranges or outcomes for June 19 in Jeddah. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market uses an automated market maker or order-book mechanism where the current price reflects the balance between buyers and sellers at any given moment. As new information emerges—updated weather models, seasonal patterns, or real-time atmospheric conditions—traders adjust their positions, causing prices to move. This continuous repricing ensures the market remains efficient and responsive to changing expectations about the day's peak temperature.
This market resolves around Jun 19, 2026, after June 19 has passed and the highest temperature recorded in Jeddah for that day is confirmed. The outcome is verified against credible public sources, such as official meteorological records or widely recognized weather data providers, ensuring an objective and transparent settlement. Once the final temperature is established and reported, the market locks in and payouts are distributed to holders of the winning outcome. The resolution process typically occurs within hours of the close of the trading day.
Major weather pattern shifts, updated seasonal forecasts, and real-time atmospheric data releases can significantly move prices in this market. Tropical systems, heat waves, or unexpected pressure systems affecting the Arabian Peninsula may trigger rapid repricing as traders adjust to new meteorological intelligence. Historical temperature records for mid-June in Jeddah also serve as anchors for comparison. Additionally, any revisions to long-range climate models or sudden changes in solar activity and ocean temperatures could influence trader expectations. Close monitoring of regional weather alerts and official forecasts will help you anticipate market movements.