Highest temperature in Tokyo on June 15?

What you need to know

This market is asking: on June 15, 2026, what will the hottest part of the day feel like at Tokyo's Haneda Airport — specifically, which single degree Celsius will be the peak temperature recorded that day? The three leading options are 21°C, 22°C, and 23°C, which in everyday terms is a mild to warm late-spring day, roughly 70–73°F — not hot by summer standards, but comfortably warm. Whichever specific degree matches the official reading that day wins. The market settles on whichever temperature range matches the single highest reading logged at Tokyo Haneda Airport Station on June 15, 2026, as reported by Weather Underground. The key detail: temperatures are rounded to whole degrees Celsius — so 22.7°C counts as 22°C, not 23°C. The result is locked in once the first data point for June 16 appears on that site. Any corrections made before that cutoff count; corrections after do not. No relevant recent news was provided for this market. Because the event is over a year away, weather forecasts won't exist yet — that's completely normal. What would matter closer to the date: seasonal outlooks for the Tokyo area in mid-June, any unusual climate patterns affecting Japan that spring, and real-time forecasts in the days just before June 15, 2026. Weather is genuinely hard to predict a year out, and a single-degree resolution makes this especially tricky — the difference between 21°C and 22°C on any given day can come down to cloud cover, wind, or a rain shower. The market currently leans toward 22°C at 34%, but the spread across the top three options is fairly even, reflecting real uncertainty. Mid-June in Tokyo sits right at the edge of rainy season, which adds another layer of unpredictability to daily highs.

The odds right now

• 22°C32%
• 21°C27%
• 23°C20%
• 20°C11%
• 24°C7%
• 19°C2%
• 25°C1%
• 26°C1%
• 18°C0%
• 27°C or higher0%
• 17°C or below0%

Price history

How this resolves

Resolves June 15, 2026

This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 15 Jun '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Tokyo Haneda Airport Station, 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 until the first data point for the following date has been published on the resolution source. 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. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.

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