Persistent rain and extensive cloud cover forecast for Tokyo on September 20 are the main drivers positioning 23°C and 24°C as the leading market-implied outcomes. Official Japan Meteorological Agency guidance issued September 19 projects a 24°C maximum under widespread precipitation with 80% probability throughout the day, limiting solar heating and promoting evaporative cooling. Ensemble models show minor spread around this value, with some runs indicating slightly lower peaks near 23°C if heavier rain arrives earlier or lingers longer. Historical September normals near 26°C highlight how the current synoptic pattern—enhanced moisture and suppressed insolation—shifts the distribution downward. Traders are monitoring the next JMA update and any rapid changes in steering flow that could alter timing or intensity before resolution.
Polymarketデータを参照したAI生成の実験的な要約。これは取引アドバイスではなく、このマーケットの解決方法には一切関係ありません。 · 更新日9月20日の東京の最高気温は?
24℃ 40%
23℃ 32%
25℃ 20%
22°C 6%
$12,161 Vol.
$12,161 Vol.
19℃以下
<1%
20℃
1%
21°C
3%
22°C
6%
23℃
32%
24℃
40%
25℃
20%
26℃
5%
27℃
1%
28℃
<1%
29℃以上
<1%
24℃ 40%
23℃ 32%
25℃ 20%
22°C 6%
$12,161 Vol.
$12,161 Vol.
19℃以下
<1%
20℃
1%
21°C
3%
22°C
6%
23℃
32%
24℃
40%
25℃
20%
26℃
5%
27℃
1%
28℃
<1%
29℃以上
<1%
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.
マーケット開始日: Sep 18, 2026, 12:56 AM ET
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 forecast for Tokyo on September 20 are the main drivers positioning 23°C and 24°C as the leading market-implied outcomes. Official Japan Meteorological Agency guidance issued September 19 projects a 24°C maximum under widespread precipitation with 80% probability throughout the day, limiting solar heating and promoting evaporative cooling. Ensemble models show minor spread around this value, with some runs indicating slightly lower peaks near 23°C if heavier rain arrives earlier or lingers longer. Historical September normals near 26°C highlight how the current synoptic pattern—enhanced moisture and suppressed insolation—shifts the distribution downward. Traders are monitoring the next JMA update and any rapid changes in steering flow that could alter timing or intensity before resolution.
Polymarketデータを参照したAI生成の実験的な要約。これは取引アドバイスではなく、このマーケットの解決方法には一切関係ありません。 · 更新日
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