Latest forecast guidance from regional models points to a peak daytime high of 36–37°C in Jeddah on September 21 under persistent clear skies, light westerly winds, and strong solar insolation typical of late-summer Red Sea coastal conditions. Market-implied odds favor 37°C at 39.5% over 36°C at 33%, reflecting minor differences in boundary-layer mixing and dew-point forecasts that can shift the exact maximum by 1°C. Stable high pressure and negligible cloud cover reduce uncertainty, though official National Center for Meteorology observations remain the resolution standard. Historical September averages near 35–36°C provide context for the current tight distribution among traders.
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 September 21?
Highest temperature in Jeddah on September 21?
37°C 40%
36°C 33%
38°C 16%
35°C 14%
NEW
$10,684 Vol.
NEW
$10,684 Vol.
Sep 21, 2026
30°C or below
<1%
31°C
<1%
32°C
<1%
33°C
<1%
34°C
1%
35°C
14%
36°C
33%
37°C
40%
38°C
16%
39°C
3%
40°C or higher
<1%
37°C 40%
36°C 33%
38°C 16%
35°C 14%
NEW
$10,684 Vol.
NEW
$10,684 Vol.
Sep 21, 2026
30°C or below
$267 Vol.
<1%
31°C
$311 Vol.
<1%
32°C
$111 Vol.
<1%
33°C
$169 Vol.
<1%
34°C
$89 Vol.
1%
35°C
$984 Vol.
14%
36°C
$5,516 Vol.
33%
37°C
$1,060 Vol.
40%
38°C
$1,325 Vol.
16%
39°C
$515 Vol.
3%
40°C or higher
$336 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the King Abdulaziz International Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=oejn
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.Latest forecast guidance from regional models points to a peak daytime high of 36–37°C in Jeddah on September 21 under persistent clear skies, light westerly winds, and strong solar insolation typical of late-summer Red Sea coastal conditions. Market-implied odds favor 37°C at 39.5% over 36°C at 33%, reflecting minor differences in boundary-layer mixing and dew-point forecasts that can shift the exact maximum by 1°C. Stable high pressure and negligible cloud cover reduce uncertainty, though official National Center for Meteorology observations remain the resolution standard. Historical September averages near 35–36°C provide context for the current tight distribution among traders.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the King Abdulaziz International Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=oejn
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=oejn
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 19, 2026, 12:58 AM ET
Volume
$10,684End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=oejnResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the King Abdulaziz International Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=oejn
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.Latest forecast guidance from regional models points to a peak daytime high of 36–37°C in Jeddah on September 21 under persistent clear skies, light westerly winds, and strong solar insolation typical of late-summer Red Sea coastal conditions. Market-implied odds favor 37°C at 39.5% over 36°C at 33%, reflecting minor differences in boundary-layer mixing and dew-point forecasts that can shift the exact maximum by 1°C. Stable high pressure and negligible cloud cover reduce uncertainty, though official National Center for Meteorology observations remain the resolution standard. Historical September averages near 35–36°C provide context for the current tight distribution among traders.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the King Abdulaziz International Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=oejn
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=oejn
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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
$10,684End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=oejnResolver
0x69c47De9D...Latest forecast guidance from regional models points to a peak daytime high of 36–37°C in Jeddah on September 21 under persistent clear skies, light westerly winds, and strong solar insolation typical of late-summer Red Sea coastal conditions. Market-implied odds favor 37°C at 39.5% over 36°C at 33%, reflecting minor differences in boundary-layer mixing and dew-point forecasts that can shift the exact maximum by 1°C. Stable high pressure and negligible cloud cover reduce uncertainty, though official National Center for Meteorology observations remain the resolution standard. Historical September averages near 35–36°C provide context for the current tight distribution among traders.
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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