Singapore's Meteorological Service Singapore (MSS) and National Environment Agency (NEA) forecasts indicate a daily maximum near 32–33°C for August 21, driven by southwest monsoon flow combined with below-average rainfall that reduces cloud cover and enhances solar heating. Persistent drier conditions through mid-August, consistent with earlier El Niño and positive Indian Ocean Dipole influences, have elevated typical August highs of around 31°C while limiting convective cooling. Official station measurements, which resolve the market, align with this range amid high humidity and light winds. Trader sentiment reflected in the 74.5% implied probability for 33°C and 22.5% for 34°C tracks these model outputs and recent observational trends, with limited upside risk from any late-day intensification.
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 August 21?
Highest temperature in Singapore on August 21?
33°C 76%
34°C 22%
35°C 1.6%
36°C <1%
$47,153 Vol.
$47,153 Vol.
Aug 21, 2026
28°C or below
<1%
29°C
<1%
30°C
<1%
31°C
<1%
32°C
<1%
33°C
76%
34°C
22%
35°C
2%
36°C
<1%
37°C
<1%
38°C or higher
<1%
33°C 76%
34°C 22%
35°C 1.6%
36°C <1%
$47,153 Vol.
$47,153 Vol.
Aug 21, 2026
28°C or below
$396 Vol.
<1%
29°C
$604 Vol.
<1%
30°C
$5,057 Vol.
<1%
31°C
$4,520 Vol.
<1%
32°C
$11,106 Vol.
<1%
33°C
$7,229 Vol.
76%
34°C
$10,543 Vol.
22%
35°C
$4,385 Vol.
2%
36°C
$2,978 Vol.
<1%
37°C
$227 Vol.
<1%
38°C or higher
$201 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Singapore Changi Airport Station, available here: https://www.wunderground.com/history/daily/sg/singapore/WSSS.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.Singapore's Meteorological Service Singapore (MSS) and National Environment Agency (NEA) forecasts indicate a daily maximum near 32–33°C for August 21, driven by southwest monsoon flow combined with below-average rainfall that reduces cloud cover and enhances solar heating. Persistent drier conditions through mid-August, consistent with earlier El Niño and positive Indian Ocean Dipole influences, have elevated typical August highs of around 31°C while limiting convective cooling. Official station measurements, which resolve the market, align with this range amid high humidity and light winds. Trader sentiment reflected in the 74.5% implied probability for 33°C and 22.5% for 34°C tracks these model outputs and recent observational trends, with limited upside risk from any late-day intensification.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Singapore Changi Airport Station, available here: https://www.wunderground.com/history/daily/sg/singapore/WSSS.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Singapore Changi Airport Station, available here: https://www.wunderground.com/history/daily/sg/singapore/WSSS.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 19, 2026, 12:56 AM ET
Volume
$47,153End Date
Aug 21, 2026Market Opened
Aug 19, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/sg/singapore/WSSSResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Singapore Changi Airport Station, available here: https://www.wunderground.com/history/daily/sg/singapore/WSSS.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.Singapore's Meteorological Service Singapore (MSS) and National Environment Agency (NEA) forecasts indicate a daily maximum near 32–33°C for August 21, driven by southwest monsoon flow combined with below-average rainfall that reduces cloud cover and enhances solar heating. Persistent drier conditions through mid-August, consistent with earlier El Niño and positive Indian Ocean Dipole influences, have elevated typical August highs of around 31°C while limiting convective cooling. Official station measurements, which resolve the market, align with this range amid high humidity and light winds. Trader sentiment reflected in the 74.5% implied probability for 33°C and 22.5% for 34°C tracks these model outputs and recent observational trends, with limited upside risk from any late-day intensification.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Singapore Changi Airport Station, available here: https://www.wunderground.com/history/daily/sg/singapore/WSSS.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Singapore Changi Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Singapore Changi Airport Station, available here: https://www.wunderground.com/history/daily/sg/singapore/WSSS.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
Volume
$47,153End Date
Aug 21, 2026Market Opened
Aug 19, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/sg/singapore/WSSSResolver
0x69c47De9D...Singapore's Meteorological Service Singapore (MSS) and National Environment Agency (NEA) forecasts indicate a daily maximum near 32–33°C for August 21, driven by southwest monsoon flow combined with below-average rainfall that reduces cloud cover and enhances solar heating. Persistent drier conditions through mid-August, consistent with earlier El Niño and positive Indian Ocean Dipole influences, have elevated typical August highs of around 31°C while limiting convective cooling. Official station measurements, which resolve the market, align with this range amid high humidity and light winds. Trader sentiment reflected in the 74.5% implied probability for 33°C and 22.5% for 34°C tracks these model outputs and recent observational trends, with limited upside risk from any late-day intensification.
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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