Recent official forecasts for Singapore on September 18 point to partly cloudy skies with a 50% chance of afternoon thundery showers under prevailing southwest monsoon conditions, supporting market-implied odds that favor a daily maximum of 32°C or 33°C. Localized convective activity typical of the season often limits peak heating by increasing cloud cover and evaporative cooling, while southeast winds around 7 mph add modest mixing. The first half of September saw frequent exceedances above 34°C amid drier conditions, but increased shower activity expected in the latter half introduces variability that could suppress readings by 1–2°C on any given day. Official guidance anticipates maxima of 33–34°C on most remaining September days, with historical September averages near 31.6°C providing climatological context for trader assessments of resolution thresholds.
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 18?
Highest temperature in Singapore on September 18?
32°C 44%
33°C 40%
31°C 7%
34°C 5%
NEW
NEW
Sep 18, 2026
27°C or below
1%
28°C
1%
29°C
2%
30°C
2%
31°C
7%
32°C
44%
33°C
40%
34°C
5%
35°C
1%
36°C
1%
37°C or higher
1%
32°C 44%
33°C 40%
31°C 7%
34°C 5%
NEW
NEW
Sep 18, 2026
27°C or below
$188 Vol.
1%
28°C
$61 Vol.
1%
29°C
$0 Vol.
2%
30°C
$0 Vol.
2%
31°C
$120 Vol.
7%
32°C
$182 Vol.
44%
33°C
$403 Vol.
40%
34°C
$58 Vol.
5%
35°C
$28 Vol.
1%
36°C
$30 Vol.
1%
37°C or higher
$204 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 18 Sep '26.
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.Recent official forecasts for Singapore on September 18 point to partly cloudy skies with a 50% chance of afternoon thundery showers under prevailing southwest monsoon conditions, supporting market-implied odds that favor a daily maximum of 32°C or 33°C. Localized convective activity typical of the season often limits peak heating by increasing cloud cover and evaporative cooling, while southeast winds around 7 mph add modest mixing. The first half of September saw frequent exceedances above 34°C amid drier conditions, but increased shower activity expected in the latter half introduces variability that could suppress readings by 1–2°C on any given day. Official guidance anticipates maxima of 33–34°C on most remaining September days, with historical September averages near 31.6°C providing climatological context for trader assessments of resolution thresholds.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 18 Sep '26.
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.
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 16, 2026, 12:56 AM ET
Volume
$1,230End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 18 Sep '26.
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.Recent official forecasts for Singapore on September 18 point to partly cloudy skies with a 50% chance of afternoon thundery showers under prevailing southwest monsoon conditions, supporting market-implied odds that favor a daily maximum of 32°C or 33°C. Localized convective activity typical of the season often limits peak heating by increasing cloud cover and evaporative cooling, while southeast winds around 7 mph add modest mixing. The first half of September saw frequent exceedances above 34°C amid drier conditions, but increased shower activity expected in the latter half introduces variability that could suppress readings by 1–2°C on any given day. Official guidance anticipates maxima of 33–34°C on most remaining September days, with historical September averages near 31.6°C providing climatological context for trader assessments of resolution thresholds.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 18 Sep '26.
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.
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.
Volume
$1,230End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...Recent official forecasts for Singapore on September 18 point to partly cloudy skies with a 50% chance of afternoon thundery showers under prevailing southwest monsoon conditions, supporting market-implied odds that favor a daily maximum of 32°C or 33°C. Localized convective activity typical of the season often limits peak heating by increasing cloud cover and evaporative cooling, while southeast winds around 7 mph add modest mixing. The first half of September saw frequent exceedances above 34°C amid drier conditions, but increased shower activity expected in the latter half introduces variability that could suppress readings by 1–2°C on any given day. Official guidance anticipates maxima of 33–34°C on most remaining September days, with historical September averages near 31.6°C providing climatological context for trader assessments of resolution thresholds.
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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