Traders have converged on a 39°C high for Jeddah today because official forecasts and real-time observations align with peak readings near that threshold under typical Red Sea coastal conditions. August climatology features mean daily maxima around 37–38°C, driven by high solar insolation, low cloud cover, and humid advection from the Arabian Sea, with model consensus from sources such as the Saudi General Authority of Meteorology showing limited diurnal cooling and stable steering patterns that prevent significant deviation. Recent model runs have held steady without major revisions that would push values lower. A realistic challenge could arise only from an unexpected marine layer or localized sea-breeze enhancement that caps the maximum below 39°C, though current atmospheric stability makes such an outcome unlikely before resolution.
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 August 20?
Highest temperature in Jeddah on August 20?
39°C 100.0%
30°C or below <1%
31°C <1%
32°C <1%
$27,652 Vol.
$27,652 Vol.
Aug 20, 2026
30°C or below
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C
No
36°C
No
37°C
No
38°C
No
39°C
Yes
40°C or higher
No
39°C 100.0%
30°C or below <1%
31°C <1%
32°C <1%
$27,652 Vol.
$27,652 Vol.
Aug 20, 2026
30°C or below
$191 Vol.
No
31°C
$191 Vol.
No
32°C
$577 Vol.
No
33°C
$695 Vol.
No
34°C
$884 Vol.
No
35°C
$781 Vol.
No
36°C
$2,051 Vol.
No
37°C
$4,956 Vol.
No
38°C
$7,413 Vol.
No
39°C
$4,840 Vol.
Yes
40°C or higher
$5,073 Vol.
No
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 20 Aug '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.Traders have converged on a 39°C high for Jeddah today because official forecasts and real-time observations align with peak readings near that threshold under typical Red Sea coastal conditions. August climatology features mean daily maxima around 37–38°C, driven by high solar insolation, low cloud cover, and humid advection from the Arabian Sea, with model consensus from sources such as the Saudi General Authority of Meteorology showing limited diurnal cooling and stable steering patterns that prevent significant deviation. Recent model runs have held steady without major revisions that would push values lower. A realistic challenge could arise only from an unexpected marine layer or localized sea-breeze enhancement that caps the maximum below 39°C, though current atmospheric stability makes such an outcome unlikely before resolution.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 20 Aug '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 20 Aug '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.
Market Opened: Aug 18, 2026, 12:58 AM ET
Volume
$27,652End Date
Aug 20, 2026Market Opened
Aug 18, 2026, 12:58 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 based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 20 Aug '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.Traders have converged on a 39°C high for Jeddah today because official forecasts and real-time observations align with peak readings near that threshold under typical Red Sea coastal conditions. August climatology features mean daily maxima around 37–38°C, driven by high solar insolation, low cloud cover, and humid advection from the Arabian Sea, with model consensus from sources such as the Saudi General Authority of Meteorology showing limited diurnal cooling and stable steering patterns that prevent significant deviation. Recent model runs have held steady without major revisions that would push values lower. A realistic challenge could arise only from an unexpected marine layer or localized sea-breeze enhancement that caps the maximum below 39°C, though current atmospheric stability makes such an outcome unlikely before resolution.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 20 Aug '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 20 Aug '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.
Volume
$27,652End Date
Aug 20, 2026Market Opened
Aug 18, 2026, 12:58 AM ETResolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Traders have converged on a 39°C high for Jeddah today because official forecasts and real-time observations align with peak readings near that threshold under typical Red Sea coastal conditions. August climatology features mean daily maxima around 37–38°C, driven by high solar insolation, low cloud cover, and humid advection from the Arabian Sea, with model consensus from sources such as the Saudi General Authority of Meteorology showing limited diurnal cooling and stable steering patterns that prevent significant deviation. Recent model runs have held steady without major revisions that would push values lower. A realistic challenge could arise only from an unexpected marine layer or localized sea-breeze enhancement that caps the maximum below 39°C, though current atmospheric stability makes such an outcome unlikely before resolution.
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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