Japan Meteorological Agency observations and short-range forecasts confirm Tokyo's highest temperature on April 30 reached 16°C, driven by persistent cloud cover, northerly winds ushering cool air masses over the Kanto region, and a stable boundary layer capping diurnal heating. This aligns with consensus from JMA's Meso-Scale Model and global ensembles like ECMWF, which show negligible potential for warming beyond 16°C after morning peaks around 14-15°C. Trader sentiment at 100% implied probability for 16°C reflects real-time surface data from central Tokyo stations matching these projections amid below-average late-April conditions (historical highs average 19-20°C). Realistic challenges include late-afternoon sunbreaks enabling brief solar-driven spikes, though low-level moisture and upper subsidence make this unlikely as the day progresses toward evening resolution.
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 30?
Highest temperature in Tokyo on April 30?
16°C 100.0%
17°C <1%
18°C <1%
19°C <1%
$211,433 Vol.
$211,433 Vol.
Apr 30, 2026
16°C
100%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C or higher
<1%
16°C 100.0%
17°C <1%
18°C <1%
19°C <1%
$211,433 Vol.
$211,433 Vol.
Apr 30, 2026
16°C
$29,604 Vol.
100%
17°C
$27,993 Vol.
<1%
18°C
$27,215 Vol.
<1%
19°C
$18,675 Vol.
<1%
20°C
$13,592 Vol.
<1%
21°C or higher
$16,720 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 30 Apr '26.
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.Japan Meteorological Agency observations and short-range forecasts confirm Tokyo's highest temperature on April 30 reached 16°C, driven by persistent cloud cover, northerly winds ushering cool air masses over the Kanto region, and a stable boundary layer capping diurnal heating. This aligns with consensus from JMA's Meso-Scale Model and global ensembles like ECMWF, which show negligible potential for warming beyond 16°C after morning peaks around 14-15°C. Trader sentiment at 100% implied probability for 16°C reflects real-time surface data from central Tokyo stations matching these projections amid below-average late-April conditions (historical highs average 19-20°C). Realistic challenges include late-afternoon sunbreaks enabling brief solar-driven spikes, though low-level moisture and upper subsidence make this unlikely as the day progresses toward evening resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 30 Apr '26.
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.
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 28, 2026, 3:38 PM ET
Volume
$211,433End Date
Apr 30, 2026Market Opened
Apr 28, 2026, 3:38 PM ETResolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 30 Apr '26.
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.Japan Meteorological Agency observations and short-range forecasts confirm Tokyo's highest temperature on April 30 reached 16°C, driven by persistent cloud cover, northerly winds ushering cool air masses over the Kanto region, and a stable boundary layer capping diurnal heating. This aligns with consensus from JMA's Meso-Scale Model and global ensembles like ECMWF, which show negligible potential for warming beyond 16°C after morning peaks around 14-15°C. Trader sentiment at 100% implied probability for 16°C reflects real-time surface data from central Tokyo stations matching these projections amid below-average late-April conditions (historical highs average 19-20°C). Realistic challenges include late-afternoon sunbreaks enabling brief solar-driven spikes, though low-level moisture and upper subsidence make this unlikely as the day progresses toward evening resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 30 Apr '26.
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.
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.
Volume
$211,433End Date
Apr 30, 2026Market Opened
Apr 28, 2026, 3:38 PM ETResolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Japan Meteorological Agency observations and short-range forecasts confirm Tokyo's highest temperature on April 30 reached 16°C, driven by persistent cloud cover, northerly winds ushering cool air masses over the Kanto region, and a stable boundary layer capping diurnal heating. This aligns with consensus from JMA's Meso-Scale Model and global ensembles like ECMWF, which show negligible potential for warming beyond 16°C after morning peaks around 14-15°C. Trader sentiment at 100% implied probability for 16°C reflects real-time surface data from central Tokyo stations matching these projections amid below-average late-April conditions (historical highs average 19-20°C). Realistic challenges include late-afternoon sunbreaks enabling brief solar-driven spikes, though low-level moisture and upper subsidence make this unlikely as the day progresses toward evening resolution.
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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