Drier Southwest Monsoon conditions and official National Environment Agency guidance for the first half of August 2026 form the main driver behind the market's emphasis on 32°C and 33°C outcomes for Singapore's highest temperature on August 18. Recent observations, including a 34°C reading on August 15, combined with below-average rainfall forecasts and fair, occasionally windy patterns, support modest warming potential while humidity and isolated thunderstorms limit extremes. Climatological August averages near 31–32°C provide baseline context, with El Niño and positive Indian Ocean Dipole influences adding slight upward pressure but not yet shifting the distribution toward 34°C or higher. Updated model runs and daily observations over the next 48 hours will refine these implied probabilities.
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 18?
Highest temperature in Singapore on August 18?
32°C 54%
33°C 37%
34°C 11%
35°C 8%
NEW
NEW
Aug 18, 2026
28°C or below
1%
29°C
3%
30°C
5%
31°C
7%
32°C
54%
33°C
37%
34°C
11%
35°C
8%
36°C
4%
37°C
<1%
38°C or higher
<1%
32°C 54%
33°C 37%
34°C 11%
35°C 8%
NEW
NEW
Aug 18, 2026
28°C or below
$25 Vol.
1%
29°C
$50 Vol.
3%
30°C
$72 Vol.
5%
31°C
$53 Vol.
7%
32°C
$695 Vol.
54%
33°C
$63 Vol.
37%
34°C
$130 Vol.
11%
35°C
$0 Vol.
8%
36°C
$0 Vol.
4%
37°C
$30 Vol.
<1%
38°C or higher
$30 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 18 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.Drier Southwest Monsoon conditions and official National Environment Agency guidance for the first half of August 2026 form the main driver behind the market's emphasis on 32°C and 33°C outcomes for Singapore's highest temperature on August 18. Recent observations, including a 34°C reading on August 15, combined with below-average rainfall forecasts and fair, occasionally windy patterns, support modest warming potential while humidity and isolated thunderstorms limit extremes. Climatological August averages near 31–32°C provide baseline context, with El Niño and positive Indian Ocean Dipole influences adding slight upward pressure but not yet shifting the distribution toward 34°C or higher. Updated model runs and daily observations over the next 48 hours will refine these implied probabilities.
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 18 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 18 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 16, 2026, 12:56 AM ET
Volume
$1,146End Date
Aug 18, 2026Market Opened
Aug 16, 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 18 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.Drier Southwest Monsoon conditions and official National Environment Agency guidance for the first half of August 2026 form the main driver behind the market's emphasis on 32°C and 33°C outcomes for Singapore's highest temperature on August 18. Recent observations, including a 34°C reading on August 15, combined with below-average rainfall forecasts and fair, occasionally windy patterns, support modest warming potential while humidity and isolated thunderstorms limit extremes. Climatological August averages near 31–32°C provide baseline context, with El Niño and positive Indian Ocean Dipole influences adding slight upward pressure but not yet shifting the distribution toward 34°C or higher. Updated model runs and daily observations over the next 48 hours will refine these implied probabilities.
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 18 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 18 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
$1,146End Date
Aug 18, 2026Market Opened
Aug 16, 2026, 12:56 AM ETResolution Source
https://www.wunderground.com/history/daily/sg/singapore/WSSSResolver
0x69c47De9D...Drier Southwest Monsoon conditions and official National Environment Agency guidance for the first half of August 2026 form the main driver behind the market's emphasis on 32°C and 33°C outcomes for Singapore's highest temperature on August 18. Recent observations, including a 34°C reading on August 15, combined with below-average rainfall forecasts and fair, occasionally windy patterns, support modest warming potential while humidity and isolated thunderstorms limit extremes. Climatological August averages near 31–32°C provide baseline context, with El Niño and positive Indian Ocean Dipole influences adding slight upward pressure but not yet shifting the distribution toward 34°C or higher. Updated model runs and daily observations over the next 48 hours will refine these implied probabilities.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions