Recent Japan Meteorological Agency forecasts and ensemble model consensus project Tokyo’s maximum temperature to reach exactly 25 °C today under stable high-pressure conditions and light southerly flow. Mid-May climatology at Otemachi typically features highs of 22–24 °C, and current atmospheric stability aligns closely with this narrow range, producing the market’s near-certain pricing for 25 °C. Official resolution rests on the verified whole-degree reading reported by JMA at day’s end. Minor model adjustments or localized urban heat-island effects remain the only realistic variables that could alter the final observation.
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 May 16?
25°C 100.0%
26°C <1%
27°C <1%
28°C or higher <1%
$116,311 Vol.
$116,311 Vol.
25°C
100%
26°C
<1%
27°C
<1%
28°C or higher
<1%
25°C 100.0%
26°C <1%
27°C <1%
28°C or higher <1%
$116,311 Vol.
$116,311 Vol.
25°C
100%
26°C
<1%
27°C
<1%
28°C or higher
<1%
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: May 14, 2026, 12:23 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...Recent Japan Meteorological Agency forecasts and ensemble model consensus project Tokyo’s maximum temperature to reach exactly 25 °C today under stable high-pressure conditions and light southerly flow. Mid-May climatology at Otemachi typically features highs of 22–24 °C, and current atmospheric stability aligns closely with this narrow range, producing the market’s near-certain pricing for 25 °C. Official resolution rests on the verified whole-degree reading reported by JMA at day’s end. Minor model adjustments or localized urban heat-island effects remain the only realistic variables that could alter the final observation.
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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