Jeddah's late-August climate features persistent high pressure and Red Sea moisture, producing typical daily maxima near 37°C (99°F) with low rainfall and humidity often above 50%. As of mid-August 2026, ensemble forecasts from sources such as AccuWeather and timeanddate project a high of 37–40°C for August 20 under mostly cloudy skies and light northerly winds, consistent with climatological normals and recent observations showing stable temperatures in the mid- to upper-30s Celsius. Model consensus indicates limited day-to-day variability this close to the date, though minor shifts in steering patterns or cloud cover could alter the peak by 1–2°C. Market-implied odds therefore reflect the narrow range of outcomes supported by current observational data and short-range numerical guidance, with resolution hinging on the official Saudi meteorological maximum.
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?
38°C 34%
39°C 26%
37°C 23%
40°C or higher 23%
NEW
NEW
Aug 20, 2026
30°C or below
<1%
31°C
<1%
32°C
<1%
33°C
<1%
34°C
9%
35°C
11%
36°C
14%
37°C
23%
38°C
34%
39°C
26%
40°C or higher
23%
38°C 34%
39°C 26%
37°C 23%
40°C or higher 23%
NEW
NEW
Aug 20, 2026
30°C or below
$5 Vol.
<1%
31°C
$5 Vol.
<1%
32°C
$5 Vol.
<1%
33°C
$5 Vol.
<1%
34°C
$100 Vol.
9%
35°C
$0 Vol.
11%
36°C
$0 Vol.
14%
37°C
$0 Vol.
23%
38°C
$0 Vol.
34%
39°C
$0 Vol.
26%
40°C or higher
$0 Vol.
23%
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.Jeddah's late-August climate features persistent high pressure and Red Sea moisture, producing typical daily maxima near 37°C (99°F) with low rainfall and humidity often above 50%. As of mid-August 2026, ensemble forecasts from sources such as AccuWeather and timeanddate project a high of 37–40°C for August 20 under mostly cloudy skies and light northerly winds, consistent with climatological normals and recent observations showing stable temperatures in the mid- to upper-30s Celsius. Model consensus indicates limited day-to-day variability this close to the date, though minor shifts in steering patterns or cloud cover could alter the peak by 1–2°C. Market-implied odds therefore reflect the narrow range of outcomes supported by current observational data and short-range numerical guidance, with resolution hinging on the official Saudi meteorological maximum.
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
$120End Date
Aug 20, 2026Market Opened
Aug 18, 2026, 12:58 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 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.Jeddah's late-August climate features persistent high pressure and Red Sea moisture, producing typical daily maxima near 37°C (99°F) with low rainfall and humidity often above 50%. As of mid-August 2026, ensemble forecasts from sources such as AccuWeather and timeanddate project a high of 37–40°C for August 20 under mostly cloudy skies and light northerly winds, consistent with climatological normals and recent observations showing stable temperatures in the mid- to upper-30s Celsius. Model consensus indicates limited day-to-day variability this close to the date, though minor shifts in steering patterns or cloud cover could alter the peak by 1–2°C. Market-implied odds therefore reflect the narrow range of outcomes supported by current observational data and short-range numerical guidance, with resolution hinging on the official Saudi meteorological maximum.
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
$120End Date
Aug 20, 2026Market Opened
Aug 18, 2026, 12:58 AM ETResolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...Jeddah's late-August climate features persistent high pressure and Red Sea moisture, producing typical daily maxima near 37°C (99°F) with low rainfall and humidity often above 50%. As of mid-August 2026, ensemble forecasts from sources such as AccuWeather and timeanddate project a high of 37–40°C for August 20 under mostly cloudy skies and light northerly winds, consistent with climatological normals and recent observations showing stable temperatures in the mid- to upper-30s Celsius. Model consensus indicates limited day-to-day variability this close to the date, though minor shifts in steering patterns or cloud cover could alter the peak by 1–2°C. Market-implied odds therefore reflect the narrow range of outcomes supported by current observational data and short-range numerical guidance, with resolution hinging on the official Saudi meteorological maximum.
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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