Latest Japan Meteorological Agency forecasts and ensemble models from ECMWF and GFS drive trader consensus toward a Tokyo high of 13°C on March 25, with 31.5% implied odds, edging out 12°C at 28%. This reflects a mild southerly airflow and urban heat island amplification over Tokyo's concrete expanse, against a March climatological average of 12.5–13.5°C. Tight clustering around 12–14°C stems from model spread on afternoon cloud cover and peak insolation timing—clearer skies could push 14–15°C (22.5–17.5% odds), while increasing marine layer risks might cap at 11–12°C. Recent observations show overnight lows near 8°C, setting up diurnal swings of 4–6°C, with no extreme signals differentiating outliers like 17°C+ (16.5%). Traders eye JMA's evening update for resolution shifts.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Tokyo on March 25?
Highest temperature in Tokyo on March 25?
13°C 33%
12°C 28%
14°C 23%
15°C 18%
7°C or below
1%
8°C
1%
9°C
14%
10°C
16%
11°C
17%
12°C
28%
13°C
32%
14°C
23%
15°C
18%
16°C
17%
17°C or higher
16%
13°C 33%
12°C 28%
14°C 23%
15°C 18%
7°C or below
1%
8°C
1%
9°C
14%
10°C
16%
11°C
17%
12°C
28%
13°C
32%
14°C
23%
15°C
18%
16°C
17%
17°C or higher
16%
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 21, 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...Latest Japan Meteorological Agency forecasts and ensemble models from ECMWF and GFS drive trader consensus toward a Tokyo high of 13°C on March 25, with 31.5% implied odds, edging out 12°C at 28%. This reflects a mild southerly airflow and urban heat island amplification over Tokyo's concrete expanse, against a March climatological average of 12.5–13.5°C. Tight clustering around 12–14°C stems from model spread on afternoon cloud cover and peak insolation timing—clearer skies could push 14–15°C (22.5–17.5% odds), while increasing marine layer risks might cap at 11–12°C. Recent observations show overnight lows near 8°C, setting up diurnal swings of 4–6°C, with no extreme signals differentiating outliers like 17°C+ (16.5%). Traders eye JMA's evening update for resolution shifts.
Experimental AI-generated summary referencing Polymarket data · Updated
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