Japan Meteorological Agency's latest forecast points to a high of 23°C in Tokyo on April 12 under clear skies and light winds, yet trader consensus favors 21°C at 43% implied probability, with 20°C (28%) and 22°C (22.5%) close behind, reflecting model uncertainty and historical mid-April variability. Recent observational data shows April 11 peaking at 25°C amid high pressure and abundant sunshine—well above the ~19°C seasonal average—driven by strengthening spring solar insolation and urban heat island effects. However, potential afternoon sea breezes or subtle cloud development could moderate peaks to the 20-21°C range, as seen in similar setups. JMA's above-average seasonal outlook through June adds upside risk, with final highest temperature data from official stations resolving the market tomorrow 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 12?
Highest temperature in Tokyo on April 12?
21°C 43%
20°C 28%
22°C 24%
19°C 6.3%
$34,165 Vol.
$34,165 Vol.
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
2%
19°C
6%
20°C
28%
21°C
43%
22°C
24%
23°C or higher
4%
21°C 43%
20°C 28%
22°C 24%
19°C 6.3%
$34,165 Vol.
$34,165 Vol.
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
2%
19°C
6%
20°C
28%
21°C
43%
22°C
24%
23°C or higher
4%
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...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...Japan Meteorological Agency's latest forecast points to a high of 23°C in Tokyo on April 12 under clear skies and light winds, yet trader consensus favors 21°C at 43% implied probability, with 20°C (28%) and 22°C (22.5%) close behind, reflecting model uncertainty and historical mid-April variability. Recent observational data shows April 11 peaking at 25°C amid high pressure and abundant sunshine—well above the ~19°C seasonal average—driven by strengthening spring solar insolation and urban heat island effects. However, potential afternoon sea breezes or subtle cloud development could moderate peaks to the 20-21°C range, as seen in similar setups. JMA's above-average seasonal outlook through June adds upside risk, with final highest temperature data from official stations resolving the market tomorrow 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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