Trader consensus on Polymarket tilts toward a Tokyo high of 15°C (28.5%) or 14°C (25%), driven by the latest Japan Meteorological Agency (JMA) forecast pegging a peak of 15°C under partly cloudy conditions with light southerly winds, closely matching ECMWF ensemble means around 14.8°C. Differentiating factors include model spread from transient cloud cover—more persistent overcast favors 14°C by suppressing afternoon heating, while clearer skies enable 16°C (21%) via enhanced solar insolation on the urban heat island. Historical March 23 averages sit at 14.2°C (1981-2010 baseline), but recent warming trends add 0.5-1°C; watch JMA's next 12Z update for vorticity shifts that could widen the 14-16°C cluster.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Tokyo on March 23?
Highest temperature in Tokyo on March 23?
15°C 29%
14°C 25%
16°C 21%
17°C 13%
$11,704 Vol.
$11,704 Vol.
10°C or below
1%
11°C
1%
12°C
1%
13°C
8%
14°C
25%
15°C
29%
16°C
21%
17°C
13%
18°C
4%
19°C
1%
20°C or higher
1%
15°C 29%
14°C 25%
16°C 21%
17°C 13%
$11,704 Vol.
$11,704 Vol.
10°C or below
1%
11°C
1%
12°C
1%
13°C
8%
14°C
25%
15°C
29%
16°C
21%
17°C
13%
18°C
4%
19°C
1%
20°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: Mar 19, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Trader consensus on Polymarket tilts toward a Tokyo high of 15°C (28.5%) or 14°C (25%), driven by the latest Japan Meteorological Agency (JMA) forecast pegging a peak of 15°C under partly cloudy conditions with light southerly winds, closely matching ECMWF ensemble means around 14.8°C. Differentiating factors include model spread from transient cloud cover—more persistent overcast favors 14°C by suppressing afternoon heating, while clearer skies enable 16°C (21%) via enhanced solar insolation on the urban heat island. Historical March 23 averages sit at 14.2°C (1981-2010 baseline), but recent warming trends add 0.5-1°C; watch JMA's next 12Z update for vorticity shifts that could widen the 14-16°C cluster.
Experimental AI-generated summary referencing Polymarket data · Updated
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