Latest Japan Meteorological Agency (JMA) forecasts project Tokyo's highest temperature on March 29 at 18-19°C, aligning with closely matched market-implied probabilities of 28% for 18°C and 27% for 19°C amid mild spring conditions in the Kanto region. Persistent weak high-pressure ridges and reduced cold frontal activity have stabilized outlooks, with ensemble models showing a tight spread—some favoring 20°C (17.5%) if diurnal heating intensifies under partly cloudy skies, while others hold at 17°C (9.5%) if moisture lingers. Historical late-March highs average 16-18°C, contextualizing the trader consensus on this narrow range. Inherent short-range uncertainty persists; daily JMA updates expected to influence sentiment as resolution nears.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Tokyo on March 29?
Highest temperature in Tokyo on March 29?
18°C 28%
19°C 27%
20°C 17%
21°C 16%
12°C or below
<1%
13°C
1%
14°C
1%
15°C
2%
16°C
3%
17°C
9%
18°C
28%
19°C
27%
20°C
17%
21°C
16%
22°C or higher
7%
18°C 28%
19°C 27%
20°C 17%
21°C 16%
12°C or below
<1%
13°C
1%
14°C
1%
15°C
2%
16°C
3%
17°C
9%
18°C
28%
19°C
27%
20°C
17%
21°C
16%
22°C or higher
7%
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 25, 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 (JMA) forecasts project Tokyo's highest temperature on March 29 at 18-19°C, aligning with closely matched market-implied probabilities of 28% for 18°C and 27% for 19°C amid mild spring conditions in the Kanto region. Persistent weak high-pressure ridges and reduced cold frontal activity have stabilized outlooks, with ensemble models showing a tight spread—some favoring 20°C (17.5%) if diurnal heating intensifies under partly cloudy skies, while others hold at 17°C (9.5%) if moisture lingers. Historical late-March highs average 16-18°C, contextualizing the trader consensus on this narrow range. Inherent short-range uncertainty persists; daily JMA updates expected to influence sentiment as resolution nears.
Experimental AI-generated summary referencing Polymarket data · Updated
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