Jeddah Hit 36°C on July 3: Market Resolved at 100% | Lines.com

Jeddah recorded a high of 36 degrees Celsius on July 3, 2026, resolving the Polymarket temperature market at full value. The outcome landed exactly on the 36°C outcome bucket, matching the city’s historical early-July baseline almost precisely. Traders who held the 36°C position saw the contract settle at 1.00.

The market opened at a 22% implied probability for the 36°C outcome. By resolution on July 3, the contract reached 100%, a 49-point surge in the final 24 hours. Total volume reached $48,538, a modest figure that reflects the market’s niche scope rather than any shortage of conviction among active traders.

What Happened: Jeddah Reached 36°C on July 3

The Jeddah temperature market resolved on July 3, 2026, with the official high landing at 36°C. The resolution source, which measures temperatures in whole degrees Celsius, confirmed the 36°C reading as the daily maximum. That figure sits at the lower edge of Jeddah’s typical July range, which historically runs between 36°C and 39°C in the first third of the month.

The market’s final hours reflected rapid repricing. The 36°C contract moved from roughly 51% to 100% on July 3 alone, with the resolution source data publication triggering the decisive price jump. Traders who held positions through the uncertainty window captured the full upside.

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How the Market Performed: A 22% Opening Price That Badly Underestimated This Outcome

The market opened with the 36°C outcome priced at just 22%. That implied probability reflected genuine uncertainty across a wide outcome distribution spanning 28°C or below all the way to 38°C or higher. With eleven possible buckets, no single outcome commanded strong early conviction, and 36°C’s 22% opening price was not obviously wrong given the spread.

By close, the contract settled at 100%, meaning traders who entered early at 22% held a severely underpriced position for most of the market’s life. The $48,538 in total volume, with $34,796 arriving in the final 24 hours, confirms that price discovery happened late. The $520,294 in liquidity provided ample depth for the final repricing, but it also meant the market could absorb large moves without dramatic slippage. The data doesn’t care about the politics of how spread-out the probability was across eleven buckets. The measurement came in, and 36°C was the answer.

Market Performance Summary

• Resolution Outcome: 36°C confirmed on July 3, 2026.
• Article-Time Probability: 100% (fully resolved).
• Final Price at Close: 1.00 (100%).
• Total Volume: $48,538, with $34,796 traded in the final 24 hours.
• Market Assessment: Underpriced YES. The 36°C outcome opened at 22% in a field of eleven outcome buckets, making early pricing structurally difficult rather than directionally wrong.

What It Means Next: Jeddah’s Climate Baseline and Prediction Market Design

Jeddah’s July 3 high of 36°C aligns with the city’s documented early-July average, which puts first-third-of-month highs around 36.2°C. The outcome was not an outlier. It was a median result for the location and date, which makes the 22% opening price an artifact of multi-bucket market design rather than genuine meteorological uncertainty. Here’s what the measurements are telling us: Jeddah’s climate signal is consistent enough that a well-calibrated market should cluster probability around the 35-37°C range for early July.

The market is pricing uncertainty, not science, and this resolution illustrates exactly that gap. A binary market asking whether Jeddah would exceed, say, 38°C on July 3 would have been a sharper instrument. Multi-bucket temperature markets distribute probability across wide outcome ranges, which compresses early pricing for any individual bucket even when the historical data points clearly toward a narrow zone. Future markets on city-level daily highs may benefit from tighter bucket ranges or conditional resolution structures that better reflect available climatological data.

Forward Signals

• Jeddah’s first-third-of-July average high of 36.2°C means future markets targeting this date range should weight the 35-37°C range more heavily from opening.
• Multi-bucket temperature markets with eleven or more outcome options systematically underweight any single bucket at open, creating pricing inefficiencies that resolve only when data publishes.
• The $34,796 in final-24-hour volume against $520,294 in liquidity confirms that late-arriving capital captured most of the price movement, a pattern likely to repeat in similar markets.
• Saudi Arabia’s coastal summer climate is well-documented and stable year-over-year, making this category of market more amenable to data-driven early positioning than the opening prices suggested.

LINES RESOLUTION VERDICT

RESOLVED YES AT 36°C

The 36°C outcome resolved exactly on Jeddah’s documented July baseline, confirming that the market’s low opening price reflected multi-bucket distribution mechanics rather than true climatological uncertainty.

What the market showed: The 36°C outcome opened at 22% implied probability and closed at 100%. In an eleven-bucket market, 22% was not irrational, but historical data for Jeddah in early July points clearly to the 36-37°C range. Traders who read the climate record early held a significantly underpriced position for most of the market’s life.