Recent official forecasts from Taiwan's Central Weather Bureau and international models converge on a September 21 overnight low in Taipei near 22–24 °C under northeast monsoon flow, partly cloudy skies, and light easterly winds that limit daytime heating while permitting moderate nocturnal radiative cooling. This range aligns with the tightly clustered market-implied odds around 22–25 °C. Historical September minima in the city average 23–24 °C, and current guidance shows no tropical systems or frontal passages to drive sharper drops or spikes. Traders appear to weigh the small model spread in boundary-layer humidity and wind speed—variables that can shift the minimum by 1–2 °C—against the stable large-scale pattern, producing near-even probabilities across the central outcomes ahead of final overnight observations.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Taipei on September 21?
Lowest temperature in Taipei on September 21?
20°C 39%
21°C 39%
22°C 39%
25°C 39%
NEW
NEW
Sep 21, 2026
18°C or below
16%
19°C
15%
20°C
39%
21°C
39%
22°C
39%
23°C
22%
24°C
22%
25°C
39%
26°C
38%
27°C
26%
28°C or higher
16%
20°C 39%
21°C 39%
22°C 39%
25°C 39%
NEW
NEW
Sep 21, 2026
18°C or below
$0 Vol.
16%
19°C
$0 Vol.
15%
20°C
$0 Vol.
39%
21°C
$0 Vol.
39%
22°C
$0 Vol.
39%
23°C
$0 Vol.
22%
24°C
$0 Vol.
22%
25°C
$0 Vol.
39%
26°C
$0 Vol.
38%
27°C
$0 Vol.
26%
28°C or higher
$0 Vol.
16%
This market will resolve based on the lowest 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 lowest temperature recorded at the Taipei Songshan Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Taipei Songshan Airport Station, available here: https://www.wunderground.com/history/daily/tw/taipei/RCSS.
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 gear icon next to the search bar and switch the Temperature setting between °F and °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.Recent official forecasts from Taiwan's Central Weather Bureau and international models converge on a September 21 overnight low in Taipei near 22–24 °C under northeast monsoon flow, partly cloudy skies, and light easterly winds that limit daytime heating while permitting moderate nocturnal radiative cooling. This range aligns with the tightly clustered market-implied odds around 22–25 °C. Historical September minima in the city average 23–24 °C, and current guidance shows no tropical systems or frontal passages to drive sharper drops or spikes. Traders appear to weigh the small model spread in boundary-layer humidity and wind speed—variables that can shift the minimum by 1–2 °C—against the stable large-scale pattern, producing near-even probabilities across the central outcomes ahead of final overnight observations.
This market will resolve based on the lowest 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 lowest temperature recorded at the Taipei Songshan Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Taipei Songshan Airport Station, available here: https://www.wunderground.com/history/daily/tw/taipei/RCSS.
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 gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Taipei Songshan Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Taipei Songshan Airport Station, available here: https://www.wunderground.com/history/daily/tw/taipei/RCSS.
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 gear icon next to the search bar and switch the Temperature setting between °F and °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 19, 2026, 12:30 AM ET
Volume
$0End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/tw/taipei/RCSSResolver
0x69c47De9D...This market will resolve based on the lowest 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 lowest temperature recorded at the Taipei Songshan Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Taipei Songshan Airport Station, available here: https://www.wunderground.com/history/daily/tw/taipei/RCSS.
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 gear icon next to the search bar and switch the Temperature setting between °F and °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.Recent official forecasts from Taiwan's Central Weather Bureau and international models converge on a September 21 overnight low in Taipei near 22–24 °C under northeast monsoon flow, partly cloudy skies, and light easterly winds that limit daytime heating while permitting moderate nocturnal radiative cooling. This range aligns with the tightly clustered market-implied odds around 22–25 °C. Historical September minima in the city average 23–24 °C, and current guidance shows no tropical systems or frontal passages to drive sharper drops or spikes. Traders appear to weigh the small model spread in boundary-layer humidity and wind speed—variables that can shift the minimum by 1–2 °C—against the stable large-scale pattern, producing near-even probabilities across the central outcomes ahead of final overnight observations.
This market will resolve based on the lowest 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 lowest temperature recorded at the Taipei Songshan Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Taipei Songshan Airport Station, available here: https://www.wunderground.com/history/daily/tw/taipei/RCSS.
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 gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Taipei Songshan Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Taipei Songshan Airport Station, available here: https://www.wunderground.com/history/daily/tw/taipei/RCSS.
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 gear icon next to the search bar and switch the Temperature setting between °F and °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
$0End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/tw/taipei/RCSSResolver
0x69c47De9D...Recent official forecasts from Taiwan's Central Weather Bureau and international models converge on a September 21 overnight low in Taipei near 22–24 °C under northeast monsoon flow, partly cloudy skies, and light easterly winds that limit daytime heating while permitting moderate nocturnal radiative cooling. This range aligns with the tightly clustered market-implied odds around 22–25 °C. Historical September minima in the city average 23–24 °C, and current guidance shows no tropical systems or frontal passages to drive sharper drops or spikes. Traders appear to weigh the small model spread in boundary-layer humidity and wind speed—variables that can shift the minimum by 1–2 °C—against the stable large-scale pattern, producing near-even probabilities across the central outcomes ahead of final overnight observations.
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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