Current forecasts from meteorological models indicate a minimum temperature near 29–30°C for Jeddah on September 21 under clear skies, light westerly winds, and stable high pressure typical of late-summer Red Sea conditions. This consensus aligns with the 55.5% market-implied probability for a 30°C low, while the 42.5% odds on 25°C or below reflect residual uncertainty in overnight radiative cooling rates and minor model spread. Historical September lows average 28–29°C, providing climatological context, though persistent humidity near 70–90% overnight may limit further drops. No significant weather systems are expected to alter the pattern before resolution, with official observations from Jeddah stations serving as the final benchmark.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Jeddah on September 21?
Lowest temperature in Jeddah on September 21?
25°C or below 70%
30°C 55%
29°C 40%
31°C 39%
NEW
NEW
Sep 21, 2026
25°C or below
70%
26°C
38%
27°C
38%
28°C
38%
29°C
40%
30°C
55%
31°C
21%
32°C
16%
33°C
14%
34°C
15%
35°C or higher
1%
25°C or below 70%
30°C 55%
29°C 40%
31°C 39%
NEW
NEW
Sep 21, 2026
25°C or below
$0 Vol.
70%
26°C
$0 Vol.
38%
27°C
$0 Vol.
38%
28°C
$0 Vol.
38%
29°C
$0 Vol.
40%
30°C
$128 Vol.
55%
31°C
$25 Vol.
21%
32°C
$0 Vol.
16%
33°C
$0 Vol.
14%
34°C
$0 Vol.
15%
35°C or higher
$120 Vol.
1%
This market will resolve to the temperature range that contains the lowest 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 lowest 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 forecasts from meteorological models indicate a minimum temperature near 29–30°C for Jeddah on September 21 under clear skies, light westerly winds, and stable high pressure typical of late-summer Red Sea conditions. This consensus aligns with the 55.5% market-implied probability for a 30°C low, while the 42.5% odds on 25°C or below reflect residual uncertainty in overnight radiative cooling rates and minor model spread. Historical September lows average 28–29°C, providing climatological context, though persistent humidity near 70–90% overnight may limit further drops. No significant weather systems are expected to alter the pattern before resolution, with official observations from Jeddah stations serving as the final benchmark.
This market will resolve to the temperature range that contains the lowest 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 lowest 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 lowest 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, 12:31 AM ET
Volume
$273End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=oejnResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest 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 lowest 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 forecasts from meteorological models indicate a minimum temperature near 29–30°C for Jeddah on September 21 under clear skies, light westerly winds, and stable high pressure typical of late-summer Red Sea conditions. This consensus aligns with the 55.5% market-implied probability for a 30°C low, while the 42.5% odds on 25°C or below reflect residual uncertainty in overnight radiative cooling rates and minor model spread. Historical September lows average 28–29°C, providing climatological context, though persistent humidity near 70–90% overnight may limit further drops. No significant weather systems are expected to alter the pattern before resolution, with official observations from Jeddah stations serving as the final benchmark.
This market will resolve to the temperature range that contains the lowest 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 lowest 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 lowest 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
$273End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=oejnResolver
0x69c47De9D...Current forecasts from meteorological models indicate a minimum temperature near 29–30°C for Jeddah on September 21 under clear skies, light westerly winds, and stable high pressure typical of late-summer Red Sea conditions. This consensus aligns with the 55.5% market-implied probability for a 30°C low, while the 42.5% odds on 25°C or below reflect residual uncertainty in overnight radiative cooling rates and minor model spread. Historical September lows average 28–29°C, providing climatological context, though persistent humidity near 70–90% overnight may limit further drops. No significant weather systems are expected to alter the pattern before resolution, with official observations from Jeddah stations serving as the final benchmark.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions