Trader consensus clusters around 26–28°C for Singapore’s lowest temperature on September 22, reflecting model agreement on typical equatorial nighttime minima under prevailing southwest monsoon conditions. Persistent high humidity above 80 percent, combined with widespread cloud cover and localized thundery showers expected through the period, restricts radiative cooling and keeps minimums near or slightly above the long-term September average of 25–27°C. Recent official outlooks from the Meteorological Service Singapore note minimums likely remaining above 27°C, with any brief clear spells offering limited scope for further drops. Daily forecast updates and refined model runs over the next 48 hours will clarify whether showers enhance or suppress the overnight low.
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 22?
28°C 40%
26°C 38%
27°C 22%
25°C 19%
22°C or below
2%
23°C
7%
24°C
11%
25°C
19%
26°C
38%
27°C
22%
28°C
40%
29°C
19%
30°C
11%
31°C
3%
32°C or higher
2%
28°C 40%
26°C 38%
27°C 22%
25°C 19%
22°C or below
2%
23°C
7%
24°C
11%
25°C
19%
26°C
38%
27°C
22%
28°C
40%
29°C
19%
30°C
11%
31°C
3%
32°C or higher
2%
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 20, 2026, 12:30 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...Trader consensus clusters around 26–28°C for Singapore’s lowest temperature on September 22, reflecting model agreement on typical equatorial nighttime minima under prevailing southwest monsoon conditions. Persistent high humidity above 80 percent, combined with widespread cloud cover and localized thundery showers expected through the period, restricts radiative cooling and keeps minimums near or slightly above the long-term September average of 25–27°C. Recent official outlooks from the Meteorological Service Singapore note minimums likely remaining above 27°C, with any brief clear spells offering limited scope for further drops. Daily forecast updates and refined model runs over the next 48 hours will clarify whether showers enhance or suppress the overnight low.
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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