This market asks a precise meteorological question: whether Helsinki's daily high temperature will be exactly 14°C on May 2, 2026. The 1% odds reflect the inherent difficulty of predicting an exact temperature on a specific day weeks in advance. Weather forecasts become increasingly uncertain beyond 10 days, and pinpointing a single degree value is exceptionally rare in practice. Helsinki's typical May weather ranges between 8-18°C, making 14°C a reasonable late-spring high, but the probability of landing precisely on that value—not 13.9°C or 14.1°C—is extremely low. Traders have priced this market to reflect the mathematical improbability that outcomes are binary (14°C or not), yet meteorological precision at the degree level is inherently elusive. The low volume of $1,176 and modest liquidity of $8,580 suggest limited trader interest in such granular weather predictions. The odds trajectory shows steady confidence that the temperature will deviate from this specific threshold. Resolution depends on official Finnish Meteorological Institute data for Helsinki's recorded high on May 2, ending at 00:00 UTC that day.
Deep dive — what moves this market
Helsinki's weather in early May exists at the boundary between spring and early summer in the Northern Hemisphere. The city's climate is moderated by the Baltic Sea, which keeps spring temperatures cooler than inland continental regions at similar latitudes. Historical May data shows that daily highs typically cluster in the 10-16°C range, with occasional outliers. A 14°C high represents a cool but not exceptional day for this period—warmer than early May's baseline but cooler than the month's potential peaks. The specificity demanded by this market is the critical challenge. Modern weather forecasting can predict temperature ranges with reasonable accuracy out 5-7 days, but the precision required here—a single-degree outcome—pushes against meteorological limits. Forecast models output temperature ranges and probabilities across bands (e.g., 12-16°C with 70% confidence), not exact values. Resolution depends on how Finnish Meteorological Institute records the daily high: if it rounds or truncates, the precise 14°C threshold becomes even more difficult to hit. The very low odds (1% YES) reflect rational pricing of this specificity trap. For YES to win, three conditions must align: (1) the high must exceed 13.5°C to round to 14°C (if rounding applies), (2) it must not reach 14.5°C or higher, and (3) this narrow band must align with actual weather on May 2. NO traders dominate because they're betting on a broader outcome space—any high below 13.5°C or above 14.5°C is a NO win. Historical data suggests May highs in Helsinki follow a bell curve around 12-14°C, but predicting which specific single-degree outcome will occur is mathematically equivalent to picking one number on a multi-digit dial. The spread between YES and NO odds tells a story: NO traders recognize the edge is thin and the market is essentially a weather-precision bet rather than a meaningful climate-anomaly play. No major weather systems are forecast for Helsinki on May 2 that would create unusual highs. The minimal trading volume reflects that participants accept the mathematical challenge but recognize limited edge in outcomes that deviate from this target.
What traders watch for
Official Finnish Meteorological Institute records the daily high temperature on May 2 as the resolution data source.
Temperature recording precision: whether rounding rules apply (e.g., 14.4°C rounds to 14°C or counts as a miss).
Any spring weather system or high-pressure zone shifting into Scandinavia on May 1-2 could alter forecasts.
No major updates expected; markets resolve based on observed May 2 temperatures after 00:00 UTC.
How does this market resolve?
This market resolves based on official Finnish Meteorological Institute data for Helsinki's highest temperature on May 2, 2026. YES wins only if the recorded high is exactly 14°C; the market closes at 00:00 UTC on May 2.
Prediction markets aggregate trader expectations into real-time probability estimates. On Polymarket Trade, every market question resolves YES or NO based on a specific event outcome; traders buy shares of the side they believe will resolve positively. Prices range 0¢ (certain no) to 100¢ (certain yes) and naturally reflect the crowd-implied probability of YES. This page summarizes the market state for readers arriving from search; for live trading (place orders, see order book depth, execute a trade) open the full interactive page linked above.
