Official Japan Meteorological Agency (JMA) observations from the Tokyo station confirm a maximum temperature of 22°C recorded on April 15, anchoring trader consensus at 100% implied probability for this outcome as the market nears resolution. Peak readings occurred in the afternoon amid partly cloudy skies, light southerly winds, and high-pressure influence stabilizing mild spring conditions typical for mid-April, where historical daily highs average around 19°C. Late-day cooling to below 20°C further solidifies positioning, with model consensus from prior JMA forecasts aligning closely. Realistic challenges include rare post-verification data revisions or discrepancies across observing stations, though standardized 24-hour maximum protocols minimize such risks.
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 15?
Highest temperature in Tokyo on April 15?
22°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$259,891 Vol.
$259,891 Vol.
14°C or below
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
No
24°C or higher
No
22°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$259,891 Vol.
$259,891 Vol.
14°C or below
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
No
24°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 13, 2026, 12:06 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
Official Japan Meteorological Agency (JMA) observations from the Tokyo station confirm a maximum temperature of 22°C recorded on April 15, anchoring trader consensus at 100% implied probability for this outcome as the market nears resolution. Peak readings occurred in the afternoon amid partly cloudy skies, light southerly winds, and high-pressure influence stabilizing mild spring conditions typical for mid-April, where historical daily highs average around 19°C. Late-day cooling to below 20°C further solidifies positioning, with model consensus from prior JMA forecasts aligning closely. Realistic challenges include rare post-verification data revisions or discrepancies across observing stations, though standardized 24-hour maximum protocols minimize such risks.
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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