Trader consensus on Polymarket favors a maximum temperature of 16°C at 27.5% implied probability for Tokyo on April 8, with 17°C (18.5%) and 18°C (18.0%) close behind, capturing the spread in latest Japan Meteorological Agency (JMA) guidance and global model ensembles amid early spring uncertainties. As of the April 4 JMA update, partly cloudy skies are forecast with highs of 20-22°C under stabilizing high pressure over the Kanto region, exceeding the 18.2°C climatological norm, but traders appear discounting this for potential cloudier scenarios from residual moisture, variable southerly flows, and 2-4°C ensemble discrepancies across GFS and ECMWF runs. Differentiating factors include afternoon insolation, urban heat effects at central Tokyo stations, and diel variations; daily JMA refinements through April 7 will clarify resolution criteria.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Tokyo on April 8?
Highest temperature in Tokyo on April 8?
16°C 30%
18°C 21%
17°C 20%
15°C 17%
10°C or below
1%
11°C
1%
12°C
3%
13°C
8%
14°C
8%
15°C
17%
16°C
30%
17°C
20%
18°C
21%
19°C
12%
20°C or higher
9%
16°C 30%
18°C 21%
17°C 20%
15°C 17%
10°C or below
1%
11°C
1%
12°C
3%
13°C
8%
14°C
8%
15°C
17%
16°C
30%
17°C
20%
18°C
21%
19°C
12%
20°C or higher
9%
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 4, 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...Trader consensus on Polymarket favors a maximum temperature of 16°C at 27.5% implied probability for Tokyo on April 8, with 17°C (18.5%) and 18°C (18.0%) close behind, capturing the spread in latest Japan Meteorological Agency (JMA) guidance and global model ensembles amid early spring uncertainties. As of the April 4 JMA update, partly cloudy skies are forecast with highs of 20-22°C under stabilizing high pressure over the Kanto region, exceeding the 18.2°C climatological norm, but traders appear discounting this for potential cloudier scenarios from residual moisture, variable southerly flows, and 2-4°C ensemble discrepancies across GFS and ECMWF runs. Differentiating factors include afternoon insolation, urban heat effects at central Tokyo stations, and diel variations; daily JMA refinements through April 7 will clarify resolution criteria.
Experimental AI-generated summary referencing Polymarket data · Updated
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