The Japan Meteorological Agency's latest forecast, issued April 11, projects Tokyo's high temperature on April 13 at 22°C under partly cloudy skies with a 30% chance of scattered showers, closely matching trader sentiment where 22°C (34%) edges 23°C or higher (36.5%) amid model ensemble spread. This positioning reflects uncertainty from varying global models—such as GFS and ECMWF analogs suggesting potential peaks near 24°C under clearer conditions—coupled with possible low-level cloudiness capping daytime heating. JMA's seasonal outlook indicates above-average April temperatures driven by warm air advection and reduced cold outbreaks, exceeding historical mid-April norms of 19–20°C. Traders await tomorrow's refined guidance from twice-daily JMA updates and new model runs, which could clarify intensification risks or frontal influences.
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 13?
Highest temperature in Tokyo on April 13?
23°C or higher 38%
22°C 33%
21°C 24%
20°C 9%
$15,598 Vol.
$15,598 Vol.
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
1%
19°C
3%
20°C
9%
21°C
24%
22°C
33%
23°C or higher
38%
23°C or higher 38%
22°C 33%
21°C 24%
20°C 9%
$15,598 Vol.
$15,598 Vol.
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
1%
19°C
3%
20°C
9%
21°C
24%
22°C
33%
23°C or higher
38%
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 9, 2026, 12:10 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...The Japan Meteorological Agency's latest forecast, issued April 11, projects Tokyo's high temperature on April 13 at 22°C under partly cloudy skies with a 30% chance of scattered showers, closely matching trader sentiment where 22°C (34%) edges 23°C or higher (36.5%) amid model ensemble spread. This positioning reflects uncertainty from varying global models—such as GFS and ECMWF analogs suggesting potential peaks near 24°C under clearer conditions—coupled with possible low-level cloudiness capping daytime heating. JMA's seasonal outlook indicates above-average April temperatures driven by warm air advection and reduced cold outbreaks, exceeding historical mid-April norms of 19–20°C. Traders await tomorrow's refined guidance from twice-daily JMA updates and new model runs, which could clarify intensification risks or frontal influences.
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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