Persistent rain and extensive cloud cover from a northerly flow are the main drivers keeping Tokyo's September 11 high temperature forecast in the narrow 20–22°C range, with model consensus pointing to limited daytime warming. Recent heavy precipitation and cooler air advection have suppressed temperatures below September climatological averages of 26–28°C. Minor differences among leading outcomes reflect uncertainty in exact cloud timing and any brief breaks that could allow slightly more solar heating. Official forecasts from agencies like the Japan Meteorological Agency emphasize continued overcast conditions and high humidity, aligning with trader positioning around 21°C as the modal outcome. Updated model runs and afternoon observations will refine the final maximum.
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 11?
Highest temperature in Tokyo on September 11?
21°C 36%
22°C 28%
20°C 24%
23°C 6%
NEW
NEW
Sep 11, 2026
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
2%
19°C
5%
20°C
24%
21°C
36%
22°C
28%
23°C
6%
24°C
3%
25°C or higher
1%
21°C 36%
22°C 28%
20°C 24%
23°C 6%
NEW
NEW
Sep 11, 2026
15°C or below
$1,279 Vol.
<1%
16°C
$687 Vol.
<1%
17°C
$297 Vol.
<1%
18°C
$11 Vol.
2%
19°C
$274 Vol.
5%
20°C
$1,722 Vol.
24%
21°C
$910 Vol.
36%
22°C
$748 Vol.
28%
23°C
$315 Vol.
6%
24°C
$230 Vol.
3%
25°C or higher
$468 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 11 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.Persistent rain and extensive cloud cover from a northerly flow are the main drivers keeping Tokyo's September 11 high temperature forecast in the narrow 20–22°C range, with model consensus pointing to limited daytime warming. Recent heavy precipitation and cooler air advection have suppressed temperatures below September climatological averages of 26–28°C. Minor differences among leading outcomes reflect uncertainty in exact cloud timing and any brief breaks that could allow slightly more solar heating. Official forecasts from agencies like the Japan Meteorological Agency emphasize continued overcast conditions and high humidity, aligning with trader positioning around 21°C as the modal outcome. Updated model runs and afternoon observations will refine the final maximum.
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 11 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 9, 2026, 12:56 AM ET
Volume
$6,940End Date
Sep 11, 2026Market Opened
Sep 9, 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 11 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.Persistent rain and extensive cloud cover from a northerly flow are the main drivers keeping Tokyo's September 11 high temperature forecast in the narrow 20–22°C range, with model consensus pointing to limited daytime warming. Recent heavy precipitation and cooler air advection have suppressed temperatures below September climatological averages of 26–28°C. Minor differences among leading outcomes reflect uncertainty in exact cloud timing and any brief breaks that could allow slightly more solar heating. Official forecasts from agencies like the Japan Meteorological Agency emphasize continued overcast conditions and high humidity, aligning with trader positioning around 21°C as the modal outcome. Updated model runs and afternoon observations will refine the final maximum.
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 11 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
$6,940End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rjttResolver
0x69c47De9D...Persistent rain and extensive cloud cover from a northerly flow are the main drivers keeping Tokyo's September 11 high temperature forecast in the narrow 20–22°C range, with model consensus pointing to limited daytime warming. Recent heavy precipitation and cooler air advection have suppressed temperatures below September climatological averages of 26–28°C. Minor differences among leading outcomes reflect uncertainty in exact cloud timing and any brief breaks that could allow slightly more solar heating. Official forecasts from agencies like the Japan Meteorological Agency emphasize continued overcast conditions and high humidity, aligning with trader positioning around 21°C as the modal outcome. Updated model runs and afternoon observations will refine the final maximum.
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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