**Singapore's equatorial location produces highly stable temperatures year-round, with September overnight minima typically averaging 25–26°C due to high humidity, frequent cloud cover, and minimal radiative cooling overnight.** Current short-range forecasts for September 1, 2026, from sources including WeatherBug, Met Office, and local models indicate overnight lows of 27–28°C (roughly 81–82°F), driven by a warm, moist air mass, light southeasterly winds, and scattered showers or thunderstorms that limit temperature drops. These conditions align closely with the market's leading outcomes of 27°C (45.5% implied probability) and 28°C (33.5%), reflecting trader consensus on model runs showing limited cooling potential. Historical climatology reinforces this positioning: Singapore's record lows rarely dip below 23°C even in cooler months, and recent August 2026 observations show nighttime readings holding near 26–28°C amid typical inter-monsoon patterns. The elevated probabilities for 27–28°C capture the narrow uncertainty band in ensemble forecasts, while lower outcomes (e.g., 25°C or below) carry reduced weight absent any anomalous steering patterns or dry-air intrusions. No major recent developments—such as unusual sea-surface temperature anomalies or strong monsoon surges—have shifted the outlook, keeping trader focus on the next official forecast updates and observational data from Changi Airport as September 1 approaches.
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 1?
25°C 47%
26°C 47%
29°C 47%
27°C 45%
22°C or below
6%
23°C
24%
24°C
27%
25°C
47%
26°C
47%
27°C
45%
28°C
36%
29°C
47%
30°C
1%
31°C
1%
32°C or higher
1%
25°C 47%
26°C 47%
29°C 47%
27°C 45%
22°C or below
6%
23°C
24%
24°C
27%
25°C
47%
26°C
47%
27°C
45%
28°C
36%
29°C
47%
30°C
1%
31°C
1%
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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 30, 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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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...**Singapore's equatorial location produces highly stable temperatures year-round, with September overnight minima typically averaging 25–26°C due to high humidity, frequent cloud cover, and minimal radiative cooling overnight.** Current short-range forecasts for September 1, 2026, from sources including WeatherBug, Met Office, and local models indicate overnight lows of 27–28°C (roughly 81–82°F), driven by a warm, moist air mass, light southeasterly winds, and scattered showers or thunderstorms that limit temperature drops. These conditions align closely with the market's leading outcomes of 27°C (45.5% implied probability) and 28°C (33.5%), reflecting trader consensus on model runs showing limited cooling potential. Historical climatology reinforces this positioning: Singapore's record lows rarely dip below 23°C even in cooler months, and recent August 2026 observations show nighttime readings holding near 26–28°C amid typical inter-monsoon patterns. The elevated probabilities for 27–28°C capture the narrow uncertainty band in ensemble forecasts, while lower outcomes (e.g., 25°C or below) carry reduced weight absent any anomalous steering patterns or dry-air intrusions. No major recent developments—such as unusual sea-surface temperature anomalies or strong monsoon surges—have shifted the outlook, keeping trader focus on the next official forecast updates and observational data from Changi Airport as September 1 approaches.
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