Recent ensemble forecasts for Jeddah on September 12 indicate a daytime maximum near 36–37 °C, driven by a persistent subtropical high, clear skies, and light southwesterly flow off the Red Sea that limits both daytime heating and nocturnal cooling. Model consensus shows minimal cloud cover and negligible precipitation risk, consistent with late-summer climatology where September averages hover around 36 °C. Small spreads among runs arise mainly from differences in simulated sea-breeze timing and boundary-layer moisture, which can shift the peak by 1 °C. With 36 °C and 37 °C outcomes trading near parity, traders are weighting the latest high-resolution guidance and any final adjustments from regional models ahead of the 48-hour verification window.
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 12?
37°C 40%
36°C 26%
38°C 25%
35°C 9%
32°C or below
3%
33°C
3%
34°C
3%
35°C
9%
36°C
26%
37°C
40%
38°C
25%
39°C
7%
40°C
5%
41°C
6%
42°C or higher
2%
37°C 40%
36°C 26%
38°C 25%
35°C 9%
32°C or below
3%
33°C
3%
34°C
3%
35°C
9%
36°C
26%
37°C
40%
38°C
25%
39°C
7%
40°C
5%
41°C
6%
42°C or higher
2%
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 10, 2026, 12:58 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=oejnResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=oejnResolver
0x69c47De9D...Recent ensemble forecasts for Jeddah on September 12 indicate a daytime maximum near 36–37 °C, driven by a persistent subtropical high, clear skies, and light southwesterly flow off the Red Sea that limits both daytime heating and nocturnal cooling. Model consensus shows minimal cloud cover and negligible precipitation risk, consistent with late-summer climatology where September averages hover around 36 °C. Small spreads among runs arise mainly from differences in simulated sea-breeze timing and boundary-layer moisture, which can shift the peak by 1 °C. With 36 °C and 37 °C outcomes trading near parity, traders are weighting the latest high-resolution guidance and any final adjustments from regional models ahead of the 48-hour verification window.
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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