Singapore’s highest temperature on September 18 will hinge on afternoon convective activity under prevailing southwest monsoon conditions, with localized thundery showers expected from late morning onward according to the Meteorological Service Singapore. Recent model guidance and station forecasts indicate daytime maxima near 32–33 °C, consistent with the month’s 31.6 °C climatological average but tempered by cloud cover and rainfall that can cap peak readings. Stronger insolation and lighter winds could push values to 33 °C or briefly higher if showers remain scattered, while earlier or more widespread convection would favor 32 °C. The tight market split between these two outcomes reflects uncertainty in the precise timing and coverage of storms, with official outlooks noting a chance of 34–35 °C only if conditions stay drier than currently projected.
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 47%
33°C 42%
34°C 8%
31°C 5%
NEW
NEW
Sep 18, 2026
27°C or below
1%
28°C
<1%
29°C
<1%
30°C
1%
31°C
5%
32°C
47%
33°C
42%
34°C
8%
35°C
1%
36°C
1%
37°C or higher
1%
32°C 47%
33°C 42%
34°C 8%
31°C 5%
NEW
NEW
Sep 18, 2026
27°C or below
$609 Vol.
1%
28°C
$1,484 Vol.
<1%
29°C
$428 Vol.
<1%
30°C
$342 Vol.
1%
31°C
$577 Vol.
5%
32°C
$1,781 Vol.
47%
33°C
$1,838 Vol.
42%
34°C
$1,433 Vol.
8%
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.Singapore’s highest temperature on September 18 will hinge on afternoon convective activity under prevailing southwest monsoon conditions, with localized thundery showers expected from late morning onward according to the Meteorological Service Singapore. Recent model guidance and station forecasts indicate daytime maxima near 32–33 °C, consistent with the month’s 31.6 °C climatological average but tempered by cloud cover and rainfall that can cap peak readings. Stronger insolation and lighter winds could push values to 33 °C or briefly higher if showers remain scattered, while earlier or more widespread convection would favor 32 °C. The tight market split between these two outcomes reflects uncertainty in the precise timing and coverage of storms, with official outlooks noting a chance of 34–35 °C only if conditions stay drier than currently projected.
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
$9,278End 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.Singapore’s highest temperature on September 18 will hinge on afternoon convective activity under prevailing southwest monsoon conditions, with localized thundery showers expected from late morning onward according to the Meteorological Service Singapore. Recent model guidance and station forecasts indicate daytime maxima near 32–33 °C, consistent with the month’s 31.6 °C climatological average but tempered by cloud cover and rainfall that can cap peak readings. Stronger insolation and lighter winds could push values to 33 °C or briefly higher if showers remain scattered, while earlier or more widespread convection would favor 32 °C. The tight market split between these two outcomes reflects uncertainty in the precise timing and coverage of storms, with official outlooks noting a chance of 34–35 °C only if conditions stay drier than currently projected.
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
$9,278End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...Singapore’s highest temperature on September 18 will hinge on afternoon convective activity under prevailing southwest monsoon conditions, with localized thundery showers expected from late morning onward according to the Meteorological Service Singapore. Recent model guidance and station forecasts indicate daytime maxima near 32–33 °C, consistent with the month’s 31.6 °C climatological average but tempered by cloud cover and rainfall that can cap peak readings. Stronger insolation and lighter winds could push values to 33 °C or briefly higher if showers remain scattered, while earlier or more widespread convection would favor 32 °C. The tight market split between these two outcomes reflects uncertainty in the precise timing and coverage of storms, with official outlooks noting a chance of 34–35 °C only if conditions stay drier than currently projected.
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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