**Singapore's equatorial location produces consistently warm conditions with limited diurnal temperature swings, typically 6–8°C between daily high and low.** On September 11, 2026, official forecasts from agencies including the Meteorological Service Singapore and international models (e.g., Met Office, WeatherBug) project an overnight minimum around 25–27°C, driven by high humidity (often 80–90%), cloud cover, and scattered showers or thunderstorms that limit nighttime radiative cooling. September falls in the inter-monsoon season, featuring light variable winds and frequent convective activity that further moderates extremes. Historical September averages show nighttime lows near 25°C, with rare dips below 23°C absent unusual synoptic influences. Current observations and model consensus support a low in the mid-20s Celsius range, aligning with market-implied probabilities favoring 23–25°C outcomes while assigning negligible odds to 21°C or below or 26°C and higher. Updated forecast runs or real-time observations from Changi or Seletar stations could refine this further as the night progresses.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Singapore on September 11?
Lowest temperature in Singapore on September 11?
25°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$1,445 Vol.
$1,445 Vol.
Sep 11, 2026
21°C or below
No
22°C
No
23°C
No
24°C
No
25°C
Yes
26°C
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C or higher
No
25°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$1,445 Vol.
$1,445 Vol.
Sep 11, 2026
21°C or below
$35 Vol.
No
22°C
$35 Vol.
No
23°C
$89 Vol.
No
24°C
$50 Vol.
No
25°C
$223 Vol.
Yes
26°C
$59 Vol.
No
27°C
$449 Vol.
No
28°C
$435 Vol.
No
29°C
$10 Vol.
No
30°C
$30 Vol.
No
31°C or higher
$30 Vol.
No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 11 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=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 equatorial location produces consistently warm conditions with limited diurnal temperature swings, typically 6–8°C between daily high and low.** On September 11, 2026, official forecasts from agencies including the Meteorological Service Singapore and international models (e.g., Met Office, WeatherBug) project an overnight minimum around 25–27°C, driven by high humidity (often 80–90%), cloud cover, and scattered showers or thunderstorms that limit nighttime radiative cooling.
September falls in the inter-monsoon season, featuring light variable winds and frequent convective activity that further moderates extremes. Historical September averages show nighttime lows near 25°C, with rare dips below 23°C absent unusual synoptic influences. Current observations and model consensus support a low in the mid-20s Celsius range, aligning with market-implied probabilities favoring 23–25°C outcomes while assigning negligible odds to 21°C or below or 26°C and higher. Updated forecast runs or real-time observations from Changi or Seletar stations could refine this further as the night progresses.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 11 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=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 lowest 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 9, 2026, 12:29 AM ET
Volume
$1,445End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 12:29 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 lowest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 11 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=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 equatorial location produces consistently warm conditions with limited diurnal temperature swings, typically 6–8°C between daily high and low.** On September 11, 2026, official forecasts from agencies including the Meteorological Service Singapore and international models (e.g., Met Office, WeatherBug) project an overnight minimum around 25–27°C, driven by high humidity (often 80–90%), cloud cover, and scattered showers or thunderstorms that limit nighttime radiative cooling.
September falls in the inter-monsoon season, featuring light variable winds and frequent convective activity that further moderates extremes. Historical September averages show nighttime lows near 25°C, with rare dips below 23°C absent unusual synoptic influences. Current observations and model consensus support a low in the mid-20s Celsius range, aligning with market-implied probabilities favoring 23–25°C outcomes while assigning negligible odds to 21°C or below or 26°C and higher. Updated forecast runs or real-time observations from Changi or Seletar stations could refine this further as the night progresses.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 11 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=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 lowest 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
$1,445End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 12:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
**Singapore's equatorial location produces consistently warm conditions with limited diurnal temperature swings, typically 6–8°C between daily high and low.** On September 11, 2026, official forecasts from agencies including the Meteorological Service Singapore and international models (e.g., Met Office, WeatherBug) project an overnight minimum around 25–27°C, driven by high humidity (often 80–90%), cloud cover, and scattered showers or thunderstorms that limit nighttime radiative cooling. September falls in the inter-monsoon season, featuring light variable winds and frequent convective activity that further moderates extremes. Historical September averages show nighttime lows near 25°C, with rare dips below 23°C absent unusual synoptic influences. Current observations and model consensus support a low in the mid-20s Celsius range, aligning with market-implied probabilities favoring 23–25°C outcomes while assigning negligible odds to 21°C or below or 26°C and higher. Updated forecast runs or real-time observations from Changi or Seletar stations could refine this further as the night progresses.
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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