Japan Meteorological Agency (JMA) observations from AMeDAS stations across Tokyo confirm the daytime high temperature reached exactly 22°C, with measurements peaking mid-afternoon before cooling under increasing cloud cover and evening conditions. Ensemble forecast models from ECMWF and GFS had anticipated this outcome, aligning with mild spring patterns featuring southerly winds and above-normal temperatures around the seasonal average of 19.5°C maximum. Trader consensus at near-100% implied probability reflects this verified data, backed by real-money wagers. Realistic challenges would require an anomalous late-day heat burst—unlikely given dropping solar insolation and stable atmospheric profiles—or a rare JMA data revision from additional stations, with final daily summaries expected shortly.
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 12?
Highest temperature in Tokyo on April 12?
22°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$288,877 Vol.
$288,877 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
Yes
23°C or higher
No
22°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$288,877 Vol.
$288,877 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
Yes
23°C or higher
No
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 8, 2026, 12:29 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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...Outcome proposed: No
No dispute
Final outcome: No
Japan Meteorological Agency (JMA) observations from AMeDAS stations across Tokyo confirm the daytime high temperature reached exactly 22°C, with measurements peaking mid-afternoon before cooling under increasing cloud cover and evening conditions. Ensemble forecast models from ECMWF and GFS had anticipated this outcome, aligning with mild spring patterns featuring southerly winds and above-normal temperatures around the seasonal average of 19.5°C maximum. Trader consensus at near-100% implied probability reflects this verified data, backed by real-money wagers. Realistic challenges would require an anomalous late-day heat burst—unlikely given dropping solar insolation and stable atmospheric profiles—or a rare JMA data revision from additional stations, with final daily summaries expected shortly.
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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