Latest ensemble forecasts from global models and services like AccuWeather and Weather.com project Tokyo's lowest temperature on May 1 at around 12°C, reflecting persistent rain and cloud cover from a passing frontal system that limits radiative cooling while introducing evaporative effects, positioning 12°C as the trader consensus at 51.5% implied probability. The nearby 11°C outcome at 34.1% accounts for potential northerly winds enhancing cold air advection overnight, per recent hourly guidance showing dips to 53°F (12°C). Japan Meteorological Agency's outlook lists 15°C, but market-implied odds prioritize detailed model runs amid historical early-May variability (averages 13-15°C, extremes to 10°C). Resolution hinges on official station data; watch JMA evening update for shifts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Tokyo on May 1?
Lowest temperature in Tokyo on May 1?
11°C 73.6%
12°C 11%
10°C 6.2%
9°C <1%
7°C or below
<1%
8°C
<1%
9°C
1%
10°C
6%
11°C
74%
12°C
11%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
11°C 73.6%
12°C 11%
10°C 6.2%
9°C <1%
7°C or below
<1%
8°C
<1%
9°C
1%
10°C
6%
11°C
74%
12°C
11%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the lowest 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: Apr 29, 2026, 12:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the lowest 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.
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Latest ensemble forecasts from global models and services like AccuWeather and Weather.com project Tokyo's lowest temperature on May 1 at around 12°C, reflecting persistent rain and cloud cover from a passing frontal system that limits radiative cooling while introducing evaporative effects, positioning 12°C as the trader consensus at 51.5% implied probability. The nearby 11°C outcome at 34.1% accounts for potential northerly winds enhancing cold air advection overnight, per recent hourly guidance showing dips to 53°F (12°C). Japan Meteorological Agency's outlook lists 15°C, but market-implied odds prioritize detailed model runs amid historical early-May variability (averages 13-15°C, extremes to 10°C). Resolution hinges on official station data; watch JMA evening update for shifts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions