**Trader consensus centers on 32°C or 33°C as the most likely highest temperature in Singapore on September 22, 2026, reflecting model consensus and official guidance under prevailing Southwest Monsoon conditions.** Singapore’s Meteorological Service Singapore (MSS) 4-day outlook projects a 34°C high on Tuesday with late-morning to early-afternoon thundery showers, while broader fortnightly guidance expects daily maxima of 33–34°C on most days in the second half of September, occasionally reaching 35°C. Multiple numerical models show slight variation: some indicate peaks near 31–32°C amid increased cloud cover and convection, while others align closer to 32–33°C before showers develop. High humidity (often 60–95%), light to moderate southeasterly winds, and localized afternoon convection typical of the monsoon period moderate extreme heating, preventing sustained runs above 34°C while making sub-31°C outcomes less probable. Recent observations, including a 35.3°C reading earlier in September, underscore the potential for brief spikes, but shower timing on the 22nd is the key variable that could shift the realized maximum within the narrow 31–34°C band favored by current implied probabilities. Updated MSS briefings and model runs in the next 48 hours will provide the clearest signals for resolution.
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 22?
32°C 44%
33°C 32%
31°C 19%
30°C 8%
28°C or below
2%
29°C
5%
30°C
8%
31°C
19%
32°C
44%
33°C
32%
34°C
8%
35°C
2%
36°C
1%
37°C
<1%
38°C or higher
<1%
32°C 44%
33°C 32%
31°C 19%
30°C 8%
28°C or below
2%
29°C
5%
30°C
8%
31°C
19%
32°C
44%
33°C
32%
34°C
8%
35°C
2%
36°C
1%
37°C
<1%
38°C or higher
<1%
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 20, 2026, 12:57 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...**Trader consensus centers on 32°C or 33°C as the most likely highest temperature in Singapore on September 22, 2026, reflecting model consensus and official guidance under prevailing Southwest Monsoon conditions.** Singapore’s Meteorological Service Singapore (MSS) 4-day outlook projects a 34°C high on Tuesday with late-morning to early-afternoon thundery showers, while broader fortnightly guidance expects daily maxima of 33–34°C on most days in the second half of September, occasionally reaching 35°C. Multiple numerical models show slight variation: some indicate peaks near 31–32°C amid increased cloud cover and convection, while others align closer to 32–33°C before showers develop. High humidity (often 60–95%), light to moderate southeasterly winds, and localized afternoon convection typical of the monsoon period moderate extreme heating, preventing sustained runs above 34°C while making sub-31°C outcomes less probable. Recent observations, including a 35.3°C reading earlier in September, underscore the potential for brief spikes, but shower timing on the 22nd is the key variable that could shift the realized maximum within the narrow 31–34°C band favored by current implied probabilities. Updated MSS briefings and model runs in the next 48 hours will provide the clearest signals for resolution.
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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