Current forecasts from international models and local monitoring place Jeddah’s August 21 maximum near 36–39 °C, with trader-implied probabilities tightly split between 37 °C and 38 °C because of small differences in predicted peak timing and cloud cover. Northwest sea breezes off the Red Sea, moderate humidity near 40–55 %, and scattered afternoon thunderstorms can cap or briefly elevate readings by 1–2 °C through altered mixing and urban heat retention. Saudi National Center for Meteorology guidance and ensemble runs show limited spread, yet resolution hinges on whether the daily high occurs under clearer skies or during brief convective cooling.
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 21?
Highest temperature in Jeddah on August 21?
37°C 41%
38°C 28%
39°C or higher 22%
36°C 13%
$11,375 Vol.
$11,375 Vol.
Aug 21, 2026
29°C or below
<1%
30°C
<1%
31°C
<1%
32°C
<1%
33°C
<1%
34°C
1%
35°C
2%
36°C
13%
37°C
41%
38°C
28%
39°C or higher
22%
37°C 41%
38°C 28%
39°C or higher 22%
36°C 13%
$11,375 Vol.
$11,375 Vol.
Aug 21, 2026
29°C or below
$705 Vol.
<1%
30°C
$692 Vol.
<1%
31°C
$687 Vol.
<1%
32°C
$508 Vol.
<1%
33°C
$648 Vol.
<1%
34°C
$612 Vol.
1%
35°C
$1,621 Vol.
2%
36°C
$1,571 Vol.
13%
37°C
$1,457 Vol.
41%
38°C
$1,234 Vol.
28%
39°C or higher
$1,640 Vol.
22%
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 21 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.Current forecasts from international models and local monitoring place Jeddah’s August 21 maximum near 36–39 °C, with trader-implied probabilities tightly split between 37 °C and 38 °C because of small differences in predicted peak timing and cloud cover. Northwest sea breezes off the Red Sea, moderate humidity near 40–55 %, and scattered afternoon thunderstorms can cap or briefly elevate readings by 1–2 °C through altered mixing and urban heat retention. Saudi National Center for Meteorology guidance and ensemble runs show limited spread, yet resolution hinges on whether the daily high occurs under clearer skies or during brief convective cooling.
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 21 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 21 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 19, 2026, 12:57 AM ET
Volume
$11,375End Date
Aug 21, 2026Market Opened
Aug 19, 2026, 12:57 AM ETResolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...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 21 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.Current forecasts from international models and local monitoring place Jeddah’s August 21 maximum near 36–39 °C, with trader-implied probabilities tightly split between 37 °C and 38 °C because of small differences in predicted peak timing and cloud cover. Northwest sea breezes off the Red Sea, moderate humidity near 40–55 %, and scattered afternoon thunderstorms can cap or briefly elevate readings by 1–2 °C through altered mixing and urban heat retention. Saudi National Center for Meteorology guidance and ensemble runs show limited spread, yet resolution hinges on whether the daily high occurs under clearer skies or during brief convective cooling.
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 21 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 21 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
$11,375End Date
Aug 21, 2026Market Opened
Aug 19, 2026, 12:57 AM ETResolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Current forecasts from international models and local monitoring place Jeddah’s August 21 maximum near 36–39 °C, with trader-implied probabilities tightly split between 37 °C and 38 °C because of small differences in predicted peak timing and cloud cover. Northwest sea breezes off the Red Sea, moderate humidity near 40–55 %, and scattered afternoon thunderstorms can cap or briefly elevate readings by 1–2 °C through altered mixing and urban heat retention. Saudi National Center for Meteorology guidance and ensemble runs show limited spread, yet resolution hinges on whether the daily high occurs under clearer skies or during brief convective cooling.
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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