Recent atmospheric conditions, including elevated humidity and extensive cloud cover tied to a lingering frontal boundary and scattered showers, are moderating daytime heating in Tokyo and anchoring market-implied odds near 28–29°C for September 8. Ensemble guidance from global models shows broad agreement on highs in the upper 20s Celsius, with minor spreads arising from differences in convective timing and boundary-layer mixing. Historical September baselines near 29°C provide context, while persistent moisture and reduced insolation lower the likelihood of exceeding 31°C. Updated Japan Meteorological Agency forecasts and next model cycles over the next 48 hours will refine these probabilities ahead of market 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 8?
Highest temperature in Tokyo on September 8?
29°C 29%
28°C 22%
30°C 18%
27°C 9%
NEW
NEW
Sep 8, 2026
26°C or below
6%
27°C
9%
28°C
22%
29°C
29%
30°C
18%
31°C
8%
32°C
3%
33°C
2%
34°C
1%
35°C
<1%
36°C or higher
<1%
29°C 29%
28°C 22%
30°C 18%
27°C 9%
NEW
NEW
Sep 8, 2026
26°C or below
$88 Vol.
6%
27°C
$209 Vol.
9%
28°C
$37 Vol.
22%
29°C
$69 Vol.
29%
30°C
$83 Vol.
18%
31°C
$66 Vol.
8%
32°C
$0 Vol.
3%
33°C
$101 Vol.
2%
34°C
$195 Vol.
1%
35°C
$195 Vol.
<1%
36°C or higher
$196 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 8 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 atmospheric conditions, including elevated humidity and extensive cloud cover tied to a lingering frontal boundary and scattered showers, are moderating daytime heating in Tokyo and anchoring market-implied odds near 28–29°C for September 8. Ensemble guidance from global models shows broad agreement on highs in the upper 20s Celsius, with minor spreads arising from differences in convective timing and boundary-layer mixing. Historical September baselines near 29°C provide context, while persistent moisture and reduced insolation lower the likelihood of exceeding 31°C. Updated Japan Meteorological Agency forecasts and next model cycles over the next 48 hours will refine these probabilities ahead of market 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 8 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 6, 2026, 12:56 AM ET
Volume
$1,238End Date
Sep 8, 2026Market Opened
Sep 6, 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 8 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 atmospheric conditions, including elevated humidity and extensive cloud cover tied to a lingering frontal boundary and scattered showers, are moderating daytime heating in Tokyo and anchoring market-implied odds near 28–29°C for September 8. Ensemble guidance from global models shows broad agreement on highs in the upper 20s Celsius, with minor spreads arising from differences in convective timing and boundary-layer mixing. Historical September baselines near 29°C provide context, while persistent moisture and reduced insolation lower the likelihood of exceeding 31°C. Updated Japan Meteorological Agency forecasts and next model cycles over the next 48 hours will refine these probabilities ahead of market 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 8 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
$1,238End Date
Sep 8, 2026Market Opened
Sep 6, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rjttResolver
0x69c47De9D...Recent atmospheric conditions, including elevated humidity and extensive cloud cover tied to a lingering frontal boundary and scattered showers, are moderating daytime heating in Tokyo and anchoring market-implied odds near 28–29°C for September 8. Ensemble guidance from global models shows broad agreement on highs in the upper 20s Celsius, with minor spreads arising from differences in convective timing and boundary-layer mixing. Historical September baselines near 29°C provide context, while persistent moisture and reduced insolation lower the likelihood of exceeding 31°C. Updated Japan Meteorological Agency forecasts and next model cycles over the next 48 hours will refine these probabilities ahead of market 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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