Official observations from King Abdulaziz International Airport (OEJN), the resolution source for Jeddah temperatures, confirm the daily maximum reached exactly 35°C on April 21, driving trader consensus to near-certainty at 100% market-implied probability. Recent METAR reports captured peak afternoon readings near 35°C under clear skies, northwest winds around 15 kt, and low humidity (20-30%), aligning with late-April climatology where highs average 34-35°C amid neutral ENSO patterns and typical Red Sea coastal moderation. Ensemble forecasts from ECMWF and GFS had projected 33-36°C, but real-time data ruled out higher thresholds. With the day concluding, only an improbable data revision from the National Center for Meteorology (NCM) could shift this, pending final daily summary.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Jeddah on April 21?
35°C 100.0%
26°C or below <1%
27°C <1%
28°C <1%
$40,838 Vol.
$40,838 Vol.
26°C or below
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C
Yes
36°C or higher
No
35°C 100.0%
26°C or below <1%
27°C <1%
28°C <1%
$40,838 Vol.
$40,838 Vol.
26°C or below
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C
Yes
36°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the King Abdulaziz International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 19, 2026, 12:43 AM ET
Resolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the King Abdulaziz International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from King Abdulaziz International Airport (OEJN), the resolution source for Jeddah temperatures, confirm the daily maximum reached exactly 35°C on April 21, driving trader consensus to near-certainty at 100% market-implied probability. Recent METAR reports captured peak afternoon readings near 35°C under clear skies, northwest winds around 15 kt, and low humidity (20-30%), aligning with late-April climatology where highs average 34-35°C amid neutral ENSO patterns and typical Red Sea coastal moderation. Ensemble forecasts from ECMWF and GFS had projected 33-36°C, but real-time data ruled out higher thresholds. With the day concluding, only an improbable data revision from the National Center for Meteorology (NCM) could shift this, pending final daily summary.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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