Persistent southwest monsoon conditions and below-average rainfall across Singapore have supported daytime maxima in the 33–35°C range during early September 2026, according to the Meteorological Service Singapore outlook. Official forecasts for September 8 indicate fair to partly cloudy skies with light southeasterly winds and only isolated afternoon showers, limiting cloud cover and evaporative cooling that would otherwise suppress peak temperatures. Recent model runs and station data show afternoon readings frequently reaching 32–34°C at Changi and other sites, consistent with the market’s heavy weighting toward 33°C as the most probable daily high. Historical September averages near 31.6°C provide context, but the current dry pattern and minimal precipitation have elevated the likelihood of the upper end of the typical range. Updated National Environment Agency guidance and any late-model shifts on September 8 will be the key near-term drivers for final resolution.
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 8?
33°C 68%
32°C 24%
34°C 7%
30°C 2%
28°C or below
<1%
29°C
<1%
30°C
2%
31°C
2%
32°C
24%
33°C
68%
34°C
7%
35°C
2%
36°C
1%
37°C
<1%
38°C or higher
<1%
33°C 68%
32°C 24%
34°C 7%
30°C 2%
28°C or below
<1%
29°C
<1%
30°C
2%
31°C
2%
32°C
24%
33°C
68%
34°C
7%
35°C
2%
36°C
1%
37°C
<1%
38°C or higher
<1%
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 6, 2026, 12:57 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 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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...Persistent southwest monsoon conditions and below-average rainfall across Singapore have supported daytime maxima in the 33–35°C range during early September 2026, according to the Meteorological Service Singapore outlook. Official forecasts for September 8 indicate fair to partly cloudy skies with light southeasterly winds and only isolated afternoon showers, limiting cloud cover and evaporative cooling that would otherwise suppress peak temperatures. Recent model runs and station data show afternoon readings frequently reaching 32–34°C at Changi and other sites, consistent with the market’s heavy weighting toward 33°C as the most probable daily high. Historical September averages near 31.6°C provide context, but the current dry pattern and minimal precipitation have elevated the likelihood of the upper end of the typical range. Updated National Environment Agency guidance and any late-model shifts on September 8 will be the key near-term drivers for final resolution.
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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