Official Meteorological Service Singapore guidance for the second half of September points to daily maximum temperatures of 33–34 °C on most days, with a chance of 35 °C on isolated occasions amid prevailing southwest monsoon flow and localized afternoon thundery showers. Recent first-half observations, including 12 days above 34 °C and a 35.3 °C peak on 9 September, establish a warmer baseline, yet increased shower activity expected through 18 September may limit peak heating by enhancing cloud cover and evaporative cooling. Historical September averages near 31.6 °C underscore the current elevated anomaly, while short-range models consistently indicate highs clustered around 32–33 °C for the 18th. Trader consensus favoring 33 °C reflects this narrow forecast envelope, with lower probabilities assigned to 34 °C or cooler outcomes pending the next official daily reading.
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?
33°C 52%
32°C 37%
34°C 10%
31°C 3%
NEW
$13,791 Vol.
NEW
$13,791 Vol.
Sep 18, 2026
27°C or below
<1%
28°C
<1%
29°C
<1%
30°C
1%
31°C
3%
32°C
37%
33°C
52%
34°C
10%
35°C
1%
36°C
1%
37°C or higher
<1%
33°C 52%
32°C 37%
34°C 10%
31°C 3%
NEW
$13,791 Vol.
NEW
$13,791 Vol.
Sep 18, 2026
27°C or below
$614 Vol.
<1%
28°C
$2,300 Vol.
<1%
29°C
$540 Vol.
<1%
30°C
$640 Vol.
1%
31°C
$899 Vol.
3%
32°C
$2,632 Vol.
37%
33°C
$2,973 Vol.
52%
34°C
$2,408 Vol.
10%
35°C
$348 Vol.
1%
36°C
$233 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.Official Meteorological Service Singapore guidance for the second half of September points to daily maximum temperatures of 33–34 °C on most days, with a chance of 35 °C on isolated occasions amid prevailing southwest monsoon flow and localized afternoon thundery showers. Recent first-half observations, including 12 days above 34 °C and a 35.3 °C peak on 9 September, establish a warmer baseline, yet increased shower activity expected through 18 September may limit peak heating by enhancing cloud cover and evaporative cooling. Historical September averages near 31.6 °C underscore the current elevated anomaly, while short-range models consistently indicate highs clustered around 32–33 °C for the 18th. Trader consensus favoring 33 °C reflects this narrow forecast envelope, with lower probabilities assigned to 34 °C or cooler outcomes pending the next official daily reading.
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
$13,791End 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.Official Meteorological Service Singapore guidance for the second half of September points to daily maximum temperatures of 33–34 °C on most days, with a chance of 35 °C on isolated occasions amid prevailing southwest monsoon flow and localized afternoon thundery showers. Recent first-half observations, including 12 days above 34 °C and a 35.3 °C peak on 9 September, establish a warmer baseline, yet increased shower activity expected through 18 September may limit peak heating by enhancing cloud cover and evaporative cooling. Historical September averages near 31.6 °C underscore the current elevated anomaly, while short-range models consistently indicate highs clustered around 32–33 °C for the 18th. Trader consensus favoring 33 °C reflects this narrow forecast envelope, with lower probabilities assigned to 34 °C or cooler outcomes pending the next official daily reading.
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
$13,791End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...Official Meteorological Service Singapore guidance for the second half of September points to daily maximum temperatures of 33–34 °C on most days, with a chance of 35 °C on isolated occasions amid prevailing southwest monsoon flow and localized afternoon thundery showers. Recent first-half observations, including 12 days above 34 °C and a 35.3 °C peak on 9 September, establish a warmer baseline, yet increased shower activity expected through 18 September may limit peak heating by enhancing cloud cover and evaporative cooling. Historical September averages near 31.6 °C underscore the current elevated anomaly, while short-range models consistently indicate highs clustered around 32–33 °C for the 18th. Trader consensus favoring 33 °C reflects this narrow forecast envelope, with lower probabilities assigned to 34 °C or cooler outcomes pending the next official daily reading.
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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