Singapore's daily maximum temperatures in September typically average near 31–32°C under the influence of the inter-monsoon period, with afternoon heating often peaking before widespread convective showers develop. On September 22, 2026, persistent cloud cover, high humidity above 70 percent, and scattered thunderstorms—consistent with official outlooks from the Meteorological Service Singapore—limited daytime warming, producing an observed high of 31°C at the Changi Airport station used for market resolution. This outcome aligns with recent model consensus and real-time observations showing suppressed peaks relative to drier September days earlier in the month. A shift in steering patterns allowing clearer skies or delayed convection could have permitted readings of 32°C or higher, though such conditions did not materialize before the daily maximum was recorded.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Singapore on September 22?
Highest temperature in Singapore on September 22?
31°C 100%
28°C or below <1%
29°C <1%
30°C <1%
$60,920 Vol.
$60,920 Vol.
Sep 22, 2026
28°C or below
No
29°C
No
30°C
No
31°C
Yes
32°C
No
33°C
No
34°C
No
35°C
No
36°C
No
37°C
No
38°C or higher
No
31°C 100%
28°C or below <1%
29°C <1%
30°C <1%
$60,920 Vol.
$60,920 Vol.
Sep 22, 2026
28°C or below
$322 Vol.
No
29°C
$5,459 Vol.
No
30°C
$8,808 Vol.
No
31°C
$12,442 Vol.
Yes
32°C
$9,106 Vol.
No
33°C
$13,358 Vol.
No
34°C
$8,787 Vol.
No
35°C
$2,514 Vol.
No
36°C
$95 Vol.
No
37°C
$15 Vol.
No
38°C or higher
$15 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 22 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=wsss
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.Singapore's daily maximum temperatures in September typically average near 31–32°C under the influence of the inter-monsoon period, with afternoon heating often peaking before widespread convective showers develop. On September 22, 2026, persistent cloud cover, high humidity above 70 percent, and scattered thunderstorms—consistent with official outlooks from the Meteorological Service Singapore—limited daytime warming, producing an observed high of 31°C at the Changi Airport station used for market resolution. This outcome aligns with recent model consensus and real-time observations showing suppressed peaks relative to drier September days earlier in the month. A shift in steering patterns allowing clearer skies or delayed convection could have permitted readings of 32°C or higher, though such conditions did not materialize before the daily maximum was recorded.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 22 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=wsss
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=wsss
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 20, 2026, 12:57 AM ET
Volume
$60,920End Date
Sep 22, 2026Market Opened
Sep 20, 2026, 12:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47de9d...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 22 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=wsss
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.Singapore's daily maximum temperatures in September typically average near 31–32°C under the influence of the inter-monsoon period, with afternoon heating often peaking before widespread convective showers develop. On September 22, 2026, persistent cloud cover, high humidity above 70 percent, and scattered thunderstorms—consistent with official outlooks from the Meteorological Service Singapore—limited daytime warming, producing an observed high of 31°C at the Changi Airport station used for market resolution. This outcome aligns with recent model consensus and real-time observations showing suppressed peaks relative to drier September days earlier in the month. A shift in steering patterns allowing clearer skies or delayed convection could have permitted readings of 32°C or higher, though such conditions did not materialize before the daily maximum was recorded.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 22 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=wsss
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=wsss
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
$60,920End Date
Sep 22, 2026Market Opened
Sep 20, 2026, 12:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47de9d...Outcome proposed: No
No dispute
Final outcome: No
Singapore's daily maximum temperatures in September typically average near 31–32°C under the influence of the inter-monsoon period, with afternoon heating often peaking before widespread convective showers develop. On September 22, 2026, persistent cloud cover, high humidity above 70 percent, and scattered thunderstorms—consistent with official outlooks from the Meteorological Service Singapore—limited daytime warming, producing an observed high of 31°C at the Changi Airport station used for market resolution. This outcome aligns with recent model consensus and real-time observations showing suppressed peaks relative to drier September days earlier in the month. A shift in steering patterns allowing clearer skies or delayed convection could have permitted readings of 32°C or higher, though such conditions did not materialize before the daily maximum was recorded.
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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