Current short-range forecasts for Jeddah on September 21 indicate a maximum near 36–37°C under sunny skies and light westerly winds, aligning with the market's tight clustering around those outcomes. Persistent subtropical high pressure and Red Sea moderation produce typical late-summer conditions: high humidity near 50–70% that limits extreme diurnal swings while sustaining elevated heat. Recent model runs show minimal day-to-day cooling from mid-September peaks above 38°C, with low precipitation risk and stable steering patterns. Historical September averages near 35–37°C provide a baseline, yet small variations in afternoon wind speed or cloud cover can shift the precise daily high by 1–2°C, sustaining close implied probabilities between 36°C and 38°C.
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 41%
36°C 34%
38°C 21%
39°C 9%
NEW
NEW
Sep 21, 2026
30°C or below
<1%
31°C
<1%
32°C
<1%
33°C
2%
34°C
5%
35°C
8%
36°C
34%
37°C
41%
38°C
22%
39°C
9%
40°C or higher
3%
37°C 41%
36°C 34%
38°C 21%
39°C 9%
NEW
NEW
Sep 21, 2026
30°C or below
$267 Vol.
<1%
31°C
$311 Vol.
<1%
32°C
$111 Vol.
<1%
33°C
$54 Vol.
2%
34°C
$84 Vol.
5%
35°C
$63 Vol.
8%
36°C
$680 Vol.
34%
37°C
$143 Vol.
41%
38°C
$203 Vol.
22%
39°C
$54 Vol.
9%
40°C or higher
$44 Vol.
3%
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.Current short-range forecasts for Jeddah on September 21 indicate a maximum near 36–37°C under sunny skies and light westerly winds, aligning with the market's tight clustering around those outcomes. Persistent subtropical high pressure and Red Sea moderation produce typical late-summer conditions: high humidity near 50–70% that limits extreme diurnal swings while sustaining elevated heat. Recent model runs show minimal day-to-day cooling from mid-September peaks above 38°C, with low precipitation risk and stable steering patterns. Historical September averages near 35–37°C provide a baseline, yet small variations in afternoon wind speed or cloud cover can shift the precise daily high by 1–2°C, sustaining close implied probabilities between 36°C and 38°C.
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
$2,014End 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.Current short-range forecasts for Jeddah on September 21 indicate a maximum near 36–37°C under sunny skies and light westerly winds, aligning with the market's tight clustering around those outcomes. Persistent subtropical high pressure and Red Sea moderation produce typical late-summer conditions: high humidity near 50–70% that limits extreme diurnal swings while sustaining elevated heat. Recent model runs show minimal day-to-day cooling from mid-September peaks above 38°C, with low precipitation risk and stable steering patterns. Historical September averages near 35–37°C provide a baseline, yet small variations in afternoon wind speed or cloud cover can shift the precise daily high by 1–2°C, sustaining close implied probabilities between 36°C and 38°C.
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
$2,014End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=oejnResolver
0x69c47De9D...Current short-range forecasts for Jeddah on September 21 indicate a maximum near 36–37°C under sunny skies and light westerly winds, aligning with the market's tight clustering around those outcomes. Persistent subtropical high pressure and Red Sea moderation produce typical late-summer conditions: high humidity near 50–70% that limits extreme diurnal swings while sustaining elevated heat. Recent model runs show minimal day-to-day cooling from mid-September peaks above 38°C, with low precipitation risk and stable steering patterns. Historical September averages near 35–37°C provide a baseline, yet small variations in afternoon wind speed or cloud cover can shift the precise daily high by 1–2°C, sustaining close implied probabilities between 36°C and 38°C.
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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