Trader consensus assigns a 100% implied probability to a high of 19°C in Tokyo on April 9, driven by finalized observational data from the Tokyo Haneda Airport station via Wunderground, confirming the daily peak amid partly cloudy conditions, gusty southerly winds up to 37 km/h, and advection of mild maritime air from a low-pressure system approaching from the west. Japan Meteorological Agency forecasts had projected around 20°C with scattered showers, but real-time monitoring showed temperatures topping out at 19°C, aligning with early April climatological norms of 18–20°C highs. Transient sensor spikes to near 23°C earlier sparked brief disputes but were dismissed as anomalies, with data now stable; only a rare post-finalization revision by monitoring agencies could challenge this positioning.
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 9?
Highest temperature in Tokyo on April 9?
19°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$143,871 Vol.
$143,871 Vol.
12°C or below
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C or higher
No
19°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$143,871 Vol.
$143,871 Vol.
12°C or below
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°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 5, 2026, 12:24 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
Trader consensus assigns a 100% implied probability to a high of 19°C in Tokyo on April 9, driven by finalized observational data from the Tokyo Haneda Airport station via Wunderground, confirming the daily peak amid partly cloudy conditions, gusty southerly winds up to 37 km/h, and advection of mild maritime air from a low-pressure system approaching from the west. Japan Meteorological Agency forecasts had projected around 20°C with scattered showers, but real-time monitoring showed temperatures topping out at 19°C, aligning with early April climatological norms of 18–20°C highs. Transient sensor spikes to near 23°C earlier sparked brief disputes but were dismissed as anomalies, with data now stable; only a rare post-finalization revision by monitoring agencies could challenge this positioning.
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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