Recent drier-than-average conditions under Singapore's southwest monsoon, reinforced by subseasonal outlooks from the Meteorological Service Singapore and National Environment Agency, form the main driver positioning 33°C as the clear leader at 57.5% implied probability. These forecasts anticipate daily maxima of 33–34°C through late August amid reduced rainfall and moderate El Niño influences that limit cloud cover, consistent with recent station readings near 34°C and historical August baselines of 31°C that occasionally reach higher under similar patterns. Model guidance shows limited scope for 34°C or above without sudden convective shifts, while 32°C remains a solid alternative at 28% if brief showers develop. Short-term forecast updates from official monitoring agencies over the next 48 hours will refine resolution criteria for the August 21 maximum.
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 56%
32°C 29%
34°C 9%
31°C 6.0%
NEW
NEW
Aug 21, 2026
28°C or below
<1%
29°C
1%
30°C
2%
31°C
6%
32°C
29%
33°C
56%
34°C
9%
35°C
1%
36°C
1%
37°C
<1%
38°C or higher
<1%
33°C 56%
32°C 29%
34°C 9%
31°C 6.0%
NEW
NEW
Aug 21, 2026
28°C or below
$218 Vol.
<1%
29°C
$152 Vol.
1%
30°C
$91 Vol.
2%
31°C
$181 Vol.
6%
32°C
$480 Vol.
29%
33°C
$480 Vol.
56%
34°C
$489 Vol.
9%
35°C
$104 Vol.
1%
36°C
$106 Vol.
1%
37°C
$119 Vol.
<1%
38°C or higher
$129 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.Recent drier-than-average conditions under Singapore's southwest monsoon, reinforced by subseasonal outlooks from the Meteorological Service Singapore and National Environment Agency, form the main driver positioning 33°C as the clear leader at 57.5% implied probability. These forecasts anticipate daily maxima of 33–34°C through late August amid reduced rainfall and moderate El Niño influences that limit cloud cover, consistent with recent station readings near 34°C and historical August baselines of 31°C that occasionally reach higher under similar patterns. Model guidance shows limited scope for 34°C or above without sudden convective shifts, while 32°C remains a solid alternative at 28% if brief showers develop. Short-term forecast updates from official monitoring agencies over the next 48 hours will refine resolution criteria for the August 21 maximum.
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
$2,268End 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.Recent drier-than-average conditions under Singapore's southwest monsoon, reinforced by subseasonal outlooks from the Meteorological Service Singapore and National Environment Agency, form the main driver positioning 33°C as the clear leader at 57.5% implied probability. These forecasts anticipate daily maxima of 33–34°C through late August amid reduced rainfall and moderate El Niño influences that limit cloud cover, consistent with recent station readings near 34°C and historical August baselines of 31°C that occasionally reach higher under similar patterns. Model guidance shows limited scope for 34°C or above without sudden convective shifts, while 32°C remains a solid alternative at 28% if brief showers develop. Short-term forecast updates from official monitoring agencies over the next 48 hours will refine resolution criteria for the August 21 maximum.
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
$2,268End Date
Aug 21, 2026Market Opened
Aug 19, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/sg/singapore/WSSSResolver
0x69c47De9D...Recent drier-than-average conditions under Singapore's southwest monsoon, reinforced by subseasonal outlooks from the Meteorological Service Singapore and National Environment Agency, form the main driver positioning 33°C as the clear leader at 57.5% implied probability. These forecasts anticipate daily maxima of 33–34°C through late August amid reduced rainfall and moderate El Niño influences that limit cloud cover, consistent with recent station readings near 34°C and historical August baselines of 31°C that occasionally reach higher under similar patterns. Model guidance shows limited scope for 34°C or above without sudden convective shifts, while 32°C remains a solid alternative at 28% if brief showers develop. Short-term forecast updates from official monitoring agencies over the next 48 hours will refine resolution criteria for the August 21 maximum.
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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