Trader consensus overwhelmingly favors a 25°C high in Tokyo on April 11 at nearly 100% implied probability, driven by the Japan Meteorological Agency's (JMA) latest forecast of clear skies with a daytime maximum around 23–25°C at Haneda Airport station, aligned with ECMWF and GFS ensemble models showing peak near 25°C amid a stable high-pressure ridge promoting subsidence warming and low humidity. This marks a downward revision from earlier 27°C projections on April 9–10, reflecting observed cooler air advection and partial cloudiness earlier in the day. Warmer than the April normal of 18.9°C, the positioning reflects hourly AMeDAS data confirming no exceedance of 25°C so far. Realistic challenges include a late-afternoon heat burst from prolonged solar insolation, though unlikely past peak heating; final JMA observations will resolve by evening.
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 April 11?
Highest temperature in Tokyo on April 11?
$246,223 Vol.
$246,223 Vol.
25°C
100%
26°C or higher
<1%
$246,223 Vol.
$246,223 Vol.
25°C
100%
26°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Tokyo Haneda Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 7, 2026, 12:16 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Tokyo Haneda Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Trader consensus overwhelmingly favors a 25°C high in Tokyo on April 11 at nearly 100% implied probability, driven by the Japan Meteorological Agency's (JMA) latest forecast of clear skies with a daytime maximum around 23–25°C at Haneda Airport station, aligned with ECMWF and GFS ensemble models showing peak near 25°C amid a stable high-pressure ridge promoting subsidence warming and low humidity. This marks a downward revision from earlier 27°C projections on April 9–10, reflecting observed cooler air advection and partial cloudiness earlier in the day. Warmer than the April normal of 18.9°C, the positioning reflects hourly AMeDAS data confirming no exceedance of 25°C so far. Realistic challenges include a late-afternoon heat burst from prolonged solar insolation, though unlikely past peak heating; final JMA observations will resolve by evening.
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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