Trader consensus centers on 27–28°C as the most likely minimum temperature in Singapore on September 17, reflecting typical equatorial conditions during the inter-monsoon period with moderate cloud cover and humidity limiting nocturnal radiative cooling. Historical baselines from Singapore’s National Environment Agency show average September overnight lows near 25–27°C, though urban heat island effects and light winds often keep readings slightly higher. Current forecast models indicate stable atmospheric patterns with no strong monsoon surge or La Niña-driven cooling expected, keeping probabilities tightly clustered between the two leading outcomes. Key variables include any late-day convection or changes in wind direction that could enhance or suppress overnight temperature drops, with updated model runs from regional meteorological agencies likely to refine these odds before resolution.
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 17?
27°C 45%
28°C 43%
25°C 40%
26°C 40%
22°C or below
1%
23°C
4%
24°C
7%
25°C
40%
26°C
40%
27°C
38%
28°C
39%
29°C
10%
30°C
40%
31°C
2%
32°C or higher
1%
27°C 45%
28°C 43%
25°C 40%
26°C 40%
22°C or below
1%
23°C
4%
24°C
7%
25°C
40%
26°C
40%
27°C
38%
28°C
39%
29°C
10%
30°C
40%
31°C
2%
32°C or higher
1%
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 15, 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 centers on 27–28°C as the most likely minimum temperature in Singapore on September 17, reflecting typical equatorial conditions during the inter-monsoon period with moderate cloud cover and humidity limiting nocturnal radiative cooling. Historical baselines from Singapore’s National Environment Agency show average September overnight lows near 25–27°C, though urban heat island effects and light winds often keep readings slightly higher. Current forecast models indicate stable atmospheric patterns with no strong monsoon surge or La Niña-driven cooling expected, keeping probabilities tightly clustered between the two leading outcomes. Key variables include any late-day convection or changes in wind direction that could enhance or suppress overnight temperature drops, with updated model runs from regional meteorological agencies likely to refine these odds before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions