Recent ensemble forecasts from agencies including the Met Office and ECMWF place Jeddah’s maximum temperature on September 13 in the 36–38 °C range, producing the market’s tight clustering around those three outcomes. Coastal sea-breeze circulation and moderate humidity are expected to temper daytime heating relative to inland areas, while clear skies and light winds under a stable subtropical ridge support strong solar insolation. Minor model differences in boundary-layer mixing and Red Sea moisture advection create the narrow spread between 36 °C and 38 °C implied probabilities. Updated high-resolution runs and local observations in the next 48 hours will likely narrow the remaining uncertainty before resolution.
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 13?
37°C 26%
35°C 25%
36°C 25%
38°C 20%
30°C or below
3%
31°C
3%
32°C
4%
33°C
14%
34°C
16%
35°C
25%
36°C
25%
37°C
26%
38°C
16%
39°C
9%
40°C or higher
8%
37°C 26%
35°C 25%
36°C 25%
38°C 20%
30°C or below
3%
31°C
3%
32°C
4%
33°C
14%
34°C
16%
35°C
25%
36°C
25%
37°C
26%
38°C
16%
39°C
9%
40°C or higher
8%
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 11, 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 from agencies including the Met Office and ECMWF place Jeddah’s maximum temperature on September 13 in the 36–38 °C range, producing the market’s tight clustering around those three outcomes. Coastal sea-breeze circulation and moderate humidity are expected to temper daytime heating relative to inland areas, while clear skies and light winds under a stable subtropical ridge support strong solar insolation. Minor model differences in boundary-layer mixing and Red Sea moisture advection create the narrow spread between 36 °C and 38 °C implied probabilities. Updated high-resolution runs and local observations in the next 48 hours will likely narrow the remaining uncertainty before resolution.
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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