Recent forecast consensus from global models points to a Tokyo high of 25–26°C on September 13 under mostly cloudy skies, light easterly winds, and scattered showers that limit afternoon heating. High humidity near 80% and a marine-influenced airmass keep temperatures close to the mid-September climatological average of roughly 22–27°C, with urban heat island effects adding modest warming at official measurement sites. Model runs show little spread in peak values, supporting the market’s heavy weighting toward 24–25°C outcomes while leaving room for minor upward revisions if clearing occurs earlier than expected. Official Japan Meteorological Agency readings will determine final 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 Tokyo on September 13?
Highest temperature in Tokyo on September 13?
25°C 62%
24°C 21%
26°C 11%
27°C 3%
$49,303 Vol.
$49,303 Vol.
Sep 13, 2026
21°C or below
<1%
22°C
<1%
23°C
<1%
24°C
21%
25°C
62%
26°C
11%
27°C
3%
28°C
2%
29°C
<1%
30°C
<1%
31°C or higher
<1%
25°C 62%
24°C 21%
26°C 11%
27°C 3%
$49,303 Vol.
$49,303 Vol.
Sep 13, 2026
21°C or below
$1,377 Vol.
<1%
22°C
$3,142 Vol.
<1%
23°C
$13,366 Vol.
<1%
24°C
$5,665 Vol.
21%
25°C
$4,755 Vol.
62%
26°C
$5,887 Vol.
11%
27°C
$5,451 Vol.
3%
28°C
$4,941 Vol.
2%
29°C
$2,011 Vol.
<1%
30°C
$1,226 Vol.
<1%
31°C or higher
$1,483 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Tokyo Haneda Airport Station in degrees Celsius on 13 Sep '26.
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=rjtt
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.Recent forecast consensus from global models points to a Tokyo high of 25–26°C on September 13 under mostly cloudy skies, light easterly winds, and scattered showers that limit afternoon heating. High humidity near 80% and a marine-influenced airmass keep temperatures close to the mid-September climatological average of roughly 22–27°C, with urban heat island effects adding modest warming at official measurement sites. Model runs show little spread in peak values, supporting the market’s heavy weighting toward 24–25°C outcomes while leaving room for minor upward revisions if clearing occurs earlier than expected. Official Japan Meteorological Agency readings will determine final resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Tokyo Haneda Airport Station in degrees Celsius on 13 Sep '26.
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=rjtt
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.
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=rjtt
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 11, 2026, 12:56 AM ET
Volume
$49,303End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rjttResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Tokyo Haneda Airport Station in degrees Celsius on 13 Sep '26.
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=rjtt
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.Recent forecast consensus from global models points to a Tokyo high of 25–26°C on September 13 under mostly cloudy skies, light easterly winds, and scattered showers that limit afternoon heating. High humidity near 80% and a marine-influenced airmass keep temperatures close to the mid-September climatological average of roughly 22–27°C, with urban heat island effects adding modest warming at official measurement sites. Model runs show little spread in peak values, supporting the market’s heavy weighting toward 24–25°C outcomes while leaving room for minor upward revisions if clearing occurs earlier than expected. Official Japan Meteorological Agency readings will determine final resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Tokyo Haneda Airport Station in degrees Celsius on 13 Sep '26.
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=rjtt
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.
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=rjtt
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.
Volume
$49,303End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rjttResolver
0x69c47De9D...Recent forecast consensus from global models points to a Tokyo high of 25–26°C on September 13 under mostly cloudy skies, light easterly winds, and scattered showers that limit afternoon heating. High humidity near 80% and a marine-influenced airmass keep temperatures close to the mid-September climatological average of roughly 22–27°C, with urban heat island effects adding modest warming at official measurement sites. Model runs show little spread in peak values, supporting the market’s heavy weighting toward 24–25°C outcomes while leaving room for minor upward revisions if clearing occurs earlier than expected. Official Japan Meteorological Agency readings will determine final 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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