TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
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 Cape Town International 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 Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT. 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 trader expectations and often incorporate meteorological forecasts, historical climate data, and seasonal patterns for Cape Town in early June. Unlike traditional analyst forecasts, which rely on single-model outputs, market prices emerge from continuous trading by participants with diverse information sources. Comparing Polymarket odds to South African weather service predictions or international meteorological models can reveal whether traders are pricing in more optimistic or pessimistic temperature scenarios than official forecasters, highlighting areas of consensus or divergence in expectations.
On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Polymarket, the highest temperature in Cape Town on June 9 is priced through an automated market maker or order-book mechanism, where each temperature outcome is assigned a contract with an implied probability. Traders buy and sell shares representing specific temperature ranges or exact values, and prices adjust dynamically based on order flow and liquidity. The current market odds reflect the collective assessment of traders regarding which temperature outcome is most likely, with prices typically tightening as June 9 approaches and real-time weather data becomes more precise.
The market resolves on Jun 9, 2026, after the highest temperature in Cape Town on June 9 has been recorded and verified. Resolution depends on official temperature data from a designated meteorological source, typically South Africa's national weather service or an internationally recognized climate monitoring station in Cape Town. The actual high temperature recorded on that date determines which outcome contract settles to 100 cents and which settle to zero, ensuring the market reflects the real-world event that occurred.
Temperature forecasts for Cape Town on June 9 can shift based on updated weather models, seasonal atmospheric patterns, and real-time meteorological data released in the weeks and days before the event. Major weather systems, ocean temperature anomalies, or unexpected pressure changes over southern Africa may alter expectations for that specific date. As June approaches, traders will incorporate increasingly accurate short-range forecasts, satellite imagery, and local weather station data. News of climate anomalies or unusual seasonal conditions could also prompt repricing of temperature probabilities on Polymarket.