Official observations from the King Abdulaziz International Airport weather station—the market's resolution source—confirm Jeddah's highest temperature peaked at 41°C during mid-afternoon hours on April 18, 2026, under dominant high-pressure subsidence and light southerly winds typical of Red Sea coastal spring patterns. This observational data, corroborated by hourly METAR reports showing temperatures climbing to 41°C before evening cooling, has solidified trader consensus at near-100% implied probability for 41°C, as diurnal maxima rarely exceed this late in the day amid dropping solar insolation. National Center for Meteorology warnings of scattered thunderstorms across western Saudi Arabia, including Jeddah, introduced brief uncertainty but failed to produce sufficient cloud cover or precipitation to suppress the peak. Realistic challenges would require a final NCM daily bulletin revising upward based on validated late data, though standardized protocols and current evening readings below 35°C make this improbable.
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 18?
Highest temperature in Jeddah on April 18?
41°C 100.0%
33°C or below <1%
34°C <1%
35°C <1%
$36,325 Vol.
$36,325 Vol.
Apr 18, 2026
33°C or below
No
34°C
No
35°C
No
36°C
No
37°C
No
38°C
No
39°C
No
40°C
No
41°C
Yes
42°C
No
43°C or higher
No
41°C 100.0%
33°C or below <1%
34°C <1%
35°C <1%
$36,325 Vol.
$36,325 Vol.
Apr 18, 2026
33°C or below
$1,017 Vol.
No
34°C
$642 Vol.
No
35°C
$1,172 Vol.
No
36°C
$6,528 Vol.
No
37°C
$3,372 Vol.
No
38°C
$2,738 Vol.
No
39°C
$4,496 Vol.
No
40°C
$2,845 Vol.
No
41°C
$6,146 Vol.
Yes
42°C
$3,908 Vol.
No
43°C or higher
$3,461 Vol.
No
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 18 Apr '26.
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.Official observations from the King Abdulaziz International Airport weather station—the market's resolution source—confirm Jeddah's highest temperature peaked at 41°C during mid-afternoon hours on April 18, 2026, under dominant high-pressure subsidence and light southerly winds typical of Red Sea coastal spring patterns. This observational data, corroborated by hourly METAR reports showing temperatures climbing to 41°C before evening cooling, has solidified trader consensus at near-100% implied probability for 41°C, as diurnal maxima rarely exceed this late in the day amid dropping solar insolation. National Center for Meteorology warnings of scattered thunderstorms across western Saudi Arabia, including Jeddah, introduced brief uncertainty but failed to produce sufficient cloud cover or precipitation to suppress the peak. Realistic challenges would require a final NCM daily bulletin revising upward based on validated late data, though standardized protocols and current evening readings below 35°C make this improbable.
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 18 Apr '26.
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.
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 16, 2026, 12:28 AM ET
Volume
$36,325End Date
Apr 18, 2026Market Opened
Apr 16, 2026, 12:28 AM ETResolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 18 Apr '26.
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.Official observations from the King Abdulaziz International Airport weather station—the market's resolution source—confirm Jeddah's highest temperature peaked at 41°C during mid-afternoon hours on April 18, 2026, under dominant high-pressure subsidence and light southerly winds typical of Red Sea coastal spring patterns. This observational data, corroborated by hourly METAR reports showing temperatures climbing to 41°C before evening cooling, has solidified trader consensus at near-100% implied probability for 41°C, as diurnal maxima rarely exceed this late in the day amid dropping solar insolation. National Center for Meteorology warnings of scattered thunderstorms across western Saudi Arabia, including Jeddah, introduced brief uncertainty but failed to produce sufficient cloud cover or precipitation to suppress the peak. Realistic challenges would require a final NCM daily bulletin revising upward based on validated late data, though standardized protocols and current evening readings below 35°C make this improbable.
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 18 Apr '26.
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.
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.
Volume
$36,325End Date
Apr 18, 2026Market Opened
Apr 16, 2026, 12:28 AM ETResolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from the King Abdulaziz International Airport weather station—the market's resolution source—confirm Jeddah's highest temperature peaked at 41°C during mid-afternoon hours on April 18, 2026, under dominant high-pressure subsidence and light southerly winds typical of Red Sea coastal spring patterns. This observational data, corroborated by hourly METAR reports showing temperatures climbing to 41°C before evening cooling, has solidified trader consensus at near-100% implied probability for 41°C, as diurnal maxima rarely exceed this late in the day amid dropping solar insolation. National Center for Meteorology warnings of scattered thunderstorms across western Saudi Arabia, including Jeddah, introduced brief uncertainty but failed to produce sufficient cloud cover or precipitation to suppress the peak. Realistic challenges would require a final NCM daily bulletin revising upward based on validated late data, though standardized protocols and current evening readings below 35°C make this improbable.
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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