Japan Meteorological Agency (JMA) surface observations at Tokyo's central reference station confirm the daily maximum temperature reached 18°C mid-afternoon on March 28, driving Polymarket traders to a 100% implied probability consensus on this outcome, backed by real-money positions. Hourly data shows sustained readings around 17–18°C during peak solar heating under partly cloudy skies, followed by evening cooling as the diurnal cycle advances past sunset near 18:30 JST. This aligns with seasonal norms for late March, where average highs hover 13–15°C amid variable spring fronts. Realistic challenges—a rare post-sunset microburst or JMA data revision from auxiliary stations—are negligible given finalized reporting protocols and declining temperatures. Final daily summary expected from JMA shortly.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jourHighest temperature in Tokyo on March 28?
Highest temperature in Tokyo on March 28?
18°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$178,362 Vol.
$178,362 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C or higher
No
18°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$178,362 Vol.
$178,362 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C or higher
No
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.
Marché ouvert : Mar 24, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Résultat proposé: No
Aucune contestation
Résultat final: No
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.
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Résultat proposé: No
Aucune contestation
Résultat final: No
Japan Meteorological Agency (JMA) surface observations at Tokyo's central reference station confirm the daily maximum temperature reached 18°C mid-afternoon on March 28, driving Polymarket traders to a 100% implied probability consensus on this outcome, backed by real-money positions. Hourly data shows sustained readings around 17–18°C during peak solar heating under partly cloudy skies, followed by evening cooling as the diurnal cycle advances past sunset near 18:30 JST. This aligns with seasonal norms for late March, where average highs hover 13–15°C amid variable spring fronts. Realistic challenges—a rare post-sunset microburst or JMA data revision from auxiliary stations—are negligible given finalized reporting protocols and declining temperatures. Final daily summary expected from JMA shortly.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jour
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