**Trader consensus for a 29°C daily maximum in Tokyo on September 8, 2026, rests on official Japan Meteorological Agency forecasts and multiple numerical weather models showing a peak near that threshold.** Southerly flow, high humidity near 80 percent, and partly cloudy to overcast conditions with scattered showers are expected to limit daytime heating, consistent with seasonal norms for early September when average highs hover around 28–29°C. Recent model runs and current observations in the upper 20s to low 30s°C reinforce this outcome. A shift to clearer skies or stronger insolation could push readings to 30–31°C, while heavier rainfall or a wind shift might cap the high below 29°C; however, the narrow spread in guidance leaves little room for deviation.
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 99.7%
31°C <1%
30°C <1%
26°C or below <1%
$86,121 Vol.
$86,121 Vol.
Sep 8, 2026
26°C or below
<1%
27°C
<1%
28°C
<1%
29°C
100%
30°C
<1%
31°C
<1%
32°C
<1%
33°C
<1%
34°C
<1%
35°C
<1%
36°C or higher
<1%
29°C 99.7%
31°C <1%
30°C <1%
26°C or below <1%
$86,121 Vol.
$86,121 Vol.
Sep 8, 2026
26°C or below
$17,886 Vol.
<1%
27°C
$14,545 Vol.
<1%
28°C
$21,329 Vol.
<1%
29°C
$8,687 Vol.
100%
30°C
$9,860 Vol.
<1%
31°C
$3,941 Vol.
<1%
32°C
$4,771 Vol.
<1%
33°C
$1,188 Vol.
<1%
34°C
$1,297 Vol.
<1%
35°C
$1,319 Vol.
<1%
36°C or higher
$1,298 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.**Trader consensus for a 29°C daily maximum in Tokyo on September 8, 2026, rests on official Japan Meteorological Agency forecasts and multiple numerical weather models showing a peak near that threshold.** Southerly flow, high humidity near 80 percent, and partly cloudy to overcast conditions with scattered showers are expected to limit daytime heating, consistent with seasonal norms for early September when average highs hover around 28–29°C. Recent model runs and current observations in the upper 20s to low 30s°C reinforce this outcome. A shift to clearer skies or stronger insolation could push readings to 30–31°C, while heavier rainfall or a wind shift might cap the high below 29°C; however, the narrow spread in guidance leaves little room for deviation.
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
$86,121End 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.**Trader consensus for a 29°C daily maximum in Tokyo on September 8, 2026, rests on official Japan Meteorological Agency forecasts and multiple numerical weather models showing a peak near that threshold.** Southerly flow, high humidity near 80 percent, and partly cloudy to overcast conditions with scattered showers are expected to limit daytime heating, consistent with seasonal norms for early September when average highs hover around 28–29°C. Recent model runs and current observations in the upper 20s to low 30s°C reinforce this outcome. A shift to clearer skies or stronger insolation could push readings to 30–31°C, while heavier rainfall or a wind shift might cap the high below 29°C; however, the narrow spread in guidance leaves little room for deviation.
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
$86,121End Date
Sep 8, 2026Market Opened
Sep 6, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rjttResolver
0x69c47De9D...**Trader consensus for a 29°C daily maximum in Tokyo on September 8, 2026, rests on official Japan Meteorological Agency forecasts and multiple numerical weather models showing a peak near that threshold.** Southerly flow, high humidity near 80 percent, and partly cloudy to overcast conditions with scattered showers are expected to limit daytime heating, consistent with seasonal norms for early September when average highs hover around 28–29°C. Recent model runs and current observations in the upper 20s to low 30s°C reinforce this outcome. A shift to clearer skies or stronger insolation could push readings to 30–31°C, while heavier rainfall or a wind shift might cap the high below 29°C; however, the narrow spread in guidance leaves little room for deviation.
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