Highest temperature in Helsinki on July 19?: how this market works

What you need to know

This market is asking: how hot will Helsinki get on July 19, 2026? Specifically, it's asking what the single highest temperature of that day will be, measured at Helsinki's main airport. The three options — 20°C, 21°C, or 22°C — represent temperature bands, and whichever band contains the actual peak temperature wins. To give a sense of scale: 20°C is a mild, pleasant summer day (about 68°F), while 22°C is comfortably warm (about 72°F). The market settles based on the peak temperature recorded at Helsinki Vantaa Airport on July 19, 2026, as shown on the Weather Underground website. Temperatures are rounded to whole degrees Celsius — no decimals. The reading is locked in once the first data point for July 20 appears on that site; any corrections made before that cutoff count, but corrections after do not. Whichever of the three listed temperature ranges contains that final whole-degree peak reading is the one that resolves as correct. The two recent headlines provided — about an IMF adviser appointment and a Pakistani port project — have no connection to Helsinki's weather. There is no relevant recent news to point to here. For a market like this, the development that would actually matter is a detailed weather forecast for Helsinki around July 19, 2026, which would only become meaningfully accurate in the days just before that date. Mid-July weather in Helsinki is genuinely variable. The market currently prices a 20°C peak as most likely (65%), with 21°C next (29%) and 22°C as a long shot (7%) — so it is not a coin toss, but it is far from certain. The honest challenge is that a single day's peak temperature is sensitive to passing clouds, wind direction, and whether a warm or cool air mass sits over Finland that week. None of that is knowable this far out, which is precisely why a spread across three options exists.

The odds right now

• 20°C78%
• 21°C22%
• 22°C2%
• 23°C1%
• 24°C0%
• 16°C or below0%
• 17°C0%
• 18°C0%
• 19°C0%
• 25°C0%
• 26°C or higher0%

Price history

How this resolves

Resolves July 19, 2026

This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 19 Jul '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 Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK. Read the full resolution rules on the live market page.

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