Trader sentiment clusters tightly around 15-18°C highs for Tokyo on March 23, driven by the latest Japanese Meteorological Agency (JMA) and ECMWF ensemble forecasts showing a mild high-pressure ridge over Honshu, fostering southerly winds and daytime maxima in the mid-teens Celsius. This setup contrasts with historical March 23 averages near 14°C, where cold outbreaks from Siberia occasionally suppress peaks below 13°C, but current model consensus favors warmer anomalies amid weak frontal activity. Differentiating factors include GFS runs leaning toward 17-18°C via stronger solar insolation, while JMA's cooler bias (15-16°C) accounts for urban heat island moderation and overnight cloud cover; traders await 12z updates for convergence.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Tokyo on March 23?
Highest temperature in Tokyo on March 23?
15°C 22%
17°C 21%
16°C 19%
18°C 19%
10°C or below
1%
11°C
1%
12°C
1%
13°C
6%
14°C
17%
15°C
22%
16°C
19%
17°C
22%
18°C
19%
19°C
13%
20°C or higher
12%
15°C 22%
17°C 21%
16°C 19%
18°C 19%
10°C or below
1%
11°C
1%
12°C
1%
13°C
6%
14°C
17%
15°C
22%
16°C
19%
17°C
22%
18°C
19%
19°C
13%
20°C or higher
12%
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 sentiment clusters tightly around 15-18°C highs for Tokyo on March 23, driven by the latest Japanese Meteorological Agency (JMA) and ECMWF ensemble forecasts showing a mild high-pressure ridge over Honshu, fostering southerly winds and daytime maxima in the mid-teens Celsius. This setup contrasts with historical March 23 averages near 14°C, where cold outbreaks from Siberia occasionally suppress peaks below 13°C, but current model consensus favors warmer anomalies amid weak frontal activity. Differentiating factors include GFS runs leaning toward 17-18°C via stronger solar insolation, while JMA's cooler bias (15-16°C) accounts for urban heat island moderation and overnight cloud cover; traders await 12z updates for convergence.
Experimental AI-generated summary referencing Polymarket data · Updated
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