Trader sentiment clusters tightly around 16–18°C for Tokyo's March 28 high temperature, driven by Japan Meteorological Agency (JMA) and ECMWF model ensembles forecasting mild highs under a persistent high-pressure ridge over the Kanto region. Recent 12-hour updates show southerly winds at 5–10 knots enhancing warm air advection, with urban heat island effects in central Tokyo potentially boosting peaks by 1–2°C above rural stations. Differentiating factors include cloud cover variability—partly cloudy skies favor 18°C (31.5% implied odds) per GFS outliers, while increasing afternoon stratus could cap at 16°C (23.5%). Historical late-March averages hover near 14°C, but this anomalously warm pattern aligns with El Niño persistence, tempering extremes below 15°C or above 20°C. Key watch: JMA's evening update.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Tokyo on March 28?
Highest temperature in Tokyo on March 28?
17°C 28%
18°C 27%
16°C 23%
19°C 14%
11°C or below
4%
12°C
4%
13°C
2%
14°C
7%
15°C
11%
16°C
25%
17°C
28%
18°C
32%
19°C
14%
20°C
7%
21°C or higher
8%
17°C 28%
18°C 27%
16°C 23%
19°C 14%
11°C or below
4%
12°C
4%
13°C
2%
14°C
7%
15°C
11%
16°C
25%
17°C
28%
18°C
32%
19°C
14%
20°C
7%
21°C or higher
8%
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 24, 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 16–18°C for Tokyo's March 28 high temperature, driven by Japan Meteorological Agency (JMA) and ECMWF model ensembles forecasting mild highs under a persistent high-pressure ridge over the Kanto region. Recent 12-hour updates show southerly winds at 5–10 knots enhancing warm air advection, with urban heat island effects in central Tokyo potentially boosting peaks by 1–2°C above rural stations. Differentiating factors include cloud cover variability—partly cloudy skies favor 18°C (31.5% implied odds) per GFS outliers, while increasing afternoon stratus could cap at 16°C (23.5%). Historical late-March averages hover near 14°C, but this anomalously warm pattern aligns with El Niño persistence, tempering extremes below 15°C or above 20°C. Key watch: JMA's evening update.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions