Northeasterly monsoon flow over northern Taiwan is the main driver behind the closely matched Polymarket odds, with forecasts from agencies like the Central Weather Administration showing overnight lows for Taipei on September 17 clustering near 21–24°C amid partial cloud cover and scattered showers. This setup limits radiative cooling under humid subtropical conditions, where dew points near 20–22°C and light easterly winds of 4–8 m/s reduce temperature drops compared to clear nights. Model consensus indicates modest variability from cloud timing and precipitation intensity, explaining the spread favoring 22°C (31.5%) and 23°C (22.0%) alongside higher 27°C+ outcomes (36.5%) if skies clear earlier than expected. Historical September baselines near 24°C provide context, but the current wind regime supports the market-implied uncertainty 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 17?
Lowest temperature in Taipei on September 17?
27°C or higher 88%
21°C 40%
18°C 34%
19°C 34%
NEW
NEW
Sep 17, 2026
17°C or below
16%
18°C
34%
19°C
34%
20°C
34%
21°C
40%
22°C
31%
23°C
23%
24°C
22%
25°C
17%
26°C
17%
27°C or higher
88%
27°C or higher 88%
21°C 40%
18°C 34%
19°C 34%
NEW
NEW
Sep 17, 2026
17°C or below
$0 Vol.
16%
18°C
$0 Vol.
34%
19°C
$0 Vol.
34%
20°C
$0 Vol.
34%
21°C
$225 Vol.
40%
22°C
$0 Vol.
31%
23°C
$0 Vol.
23%
24°C
$42 Vol.
22%
25°C
$0 Vol.
17%
26°C
$0 Vol.
17%
27°C or higher
$0 Vol.
88%
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 17 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.Northeasterly monsoon flow over northern Taiwan is the main driver behind the closely matched Polymarket odds, with forecasts from agencies like the Central Weather Administration showing overnight lows for Taipei on September 17 clustering near 21–24°C amid partial cloud cover and scattered showers. This setup limits radiative cooling under humid subtropical conditions, where dew points near 20–22°C and light easterly winds of 4–8 m/s reduce temperature drops compared to clear nights. Model consensus indicates modest variability from cloud timing and precipitation intensity, explaining the spread favoring 22°C (31.5%) and 23°C (22.0%) alongside higher 27°C+ outcomes (36.5%) if skies clear earlier than expected. Historical September baselines near 24°C provide context, but the current wind regime supports the market-implied uncertainty 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 17 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 17 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 15, 2026, 12:30 AM ET
Volume
$266End Date
Sep 17, 2026Market Opened
Sep 15, 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 17 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.Northeasterly monsoon flow over northern Taiwan is the main driver behind the closely matched Polymarket odds, with forecasts from agencies like the Central Weather Administration showing overnight lows for Taipei on September 17 clustering near 21–24°C amid partial cloud cover and scattered showers. This setup limits radiative cooling under humid subtropical conditions, where dew points near 20–22°C and light easterly winds of 4–8 m/s reduce temperature drops compared to clear nights. Model consensus indicates modest variability from cloud timing and precipitation intensity, explaining the spread favoring 22°C (31.5%) and 23°C (22.0%) alongside higher 27°C+ outcomes (36.5%) if skies clear earlier than expected. Historical September baselines near 24°C provide context, but the current wind regime supports the market-implied uncertainty 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 17 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 17 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
$266End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/tw/taipei/RCSSResolver
0x69c47De9D...Northeasterly monsoon flow over northern Taiwan is the main driver behind the closely matched Polymarket odds, with forecasts from agencies like the Central Weather Administration showing overnight lows for Taipei on September 17 clustering near 21–24°C amid partial cloud cover and scattered showers. This setup limits radiative cooling under humid subtropical conditions, where dew points near 20–22°C and light easterly winds of 4–8 m/s reduce temperature drops compared to clear nights. Model consensus indicates modest variability from cloud timing and precipitation intensity, explaining the spread favoring 22°C (31.5%) and 23°C (22.0%) alongside higher 27°C+ outcomes (36.5%) if skies clear earlier than expected. Historical September baselines near 24°C provide context, but the current wind regime supports the market-implied uncertainty 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
Beware of external links.
Beware of external links.
Frequently Asked Questions