Buenos Aires July 4 High Temp: Will 11°C Hit?

Buenos Aires sits in the middle of its winter season, and the market is making a very specific call: a peak temperature of exactly 11°C on July 4. That outcome carries a 42.5% implied probability, which means traders see it as the single likeliest outcome from a field of eleven possible bins. That is a meaningful edge in a fragmented market, but it is far from a consensus.

The market question asks which temperature bin captures the highest reading in Buenos Aires on July 4, 2026, with resolution set for noon local time. The YES price sits at 0.43 and the NO price at 0.58, against a total volume of $8,635 and liquidity of $45,144. Competing outcomes including 12°C, 10°C, 9°C, 13°C, 8°C, and 14°C or beyond all hold residual probability that collectively outweighs the 11°C position.

How the Buenos Aires Temperature Contract Works

This contract resolves YES if the highest recorded temperature in Buenos Aires on July 4 lands in the 11°C bin. Any other outcome — warmer or colder — resolves NO. The resolution source is market resolution, meaning the operator will reference an official or agreed-upon weather observation for the city. The contract closes at noon on July 4, 2026.

• YES (11°C) is priced at 0.43, implying a 42.5% probability that the July 4 peak lands in this exact bin.
• NO covers all other outcomes combined, priced at 0.58, implying a 57.5% probability that the daily high lands above or below 11°C.

Missing the 11°C bin in either direction pays out the NO side. Buenos Aires in early July typically sees daily highs ranging from roughly 9°C to 14°C, which is why the market spreads probability across multiple adjacent bins. A day that runs warmer than forecast or a cold air mass that pushes in overnight can shift the outcome by two or three degrees, enough to reprice adjacent contracts sharply.

Sponsored Partner

Momentum and Market Signals

The momentum composite here tells a cautious story. The 1-hour price change is plus 1.0%, and the trend score sits at 39.68, which falls below the neutral midpoint. The 24-hour change is unavailable, but the price history context shows the 11°C bin dropped sharply on July 2 before recovering partially on July 3. That pattern suggests traders repriced the bin lower as forecasts shifted, then partially walked that back as uncertainty re-entered the picture.

Total volume stands at $8,635, with all of that volume transacting in the last 24 hours. Liquidity at $45,144 is healthy relative to volume, meaning the order book can absorb new bets without large price swings. Still, with under $10,000 in total volume, this is a thin market. A single well-timed order tied to an updated weather model could move the 11°C bin price meaningfully before resolution.

• The 1-hour price gain of plus 1.0% reflects minor positive momentum, likely tracking a forecast nudge toward the 11°C range from an updated model run.
• The trend score of 39.68 signals weak conviction overall, consistent with a market that is distributing probability across multiple adjacent temperature bins rather than concentrating on one.
• Volume of $8,635 in 24 hours is thin. New forecast data published before noon on July 4 could reprice this contract in either direction without much resistance.
• Liquidity at $45,144 is solid. The order book depth means the mid-market price is relatively stable absent a weather catalyst.
• Trader sentiment leans bearish at 57.5% NO, which reflects the structural difficulty of picking a single degree bin in a multi-outcome market.

Lines Analysis: What Supports 11°C and What Threatens It

Buenos Aires historical July data centers this window of outcomes squarely. July daily highs in the city cluster between 9°C and 14°C, with the distribution roughly bell-shaped around 11°C to 12°C. That places the 11°C bin in a structurally favorable position: it sits near the climatological center of the expected range, which is exactly why it carries the highest single-bin probability in this market.

What makes the NO outcome real is the width of the competing probability mass. The 12°C bin and the 10°C bin together likely account for a substantial share of residual probability. A slightly warmer airmass, driven by a delayed cold front or a persistent northerly flow off warmer inland areas, pushes the outcome into the 12°C or 13°C bin. Conversely, a cold outbreak from Patagonia, not unusual in early July, can drive the daily high down to 9°C or even 8°C. The market is pricing the 11°C bin as the modal outcome, not a near-certainty.

• Watch any updated forecast model output from Argentina’s national meteorological service, SMN, in the hours before noon on July 4. A shift in the predicted high by even one degree moves meaningful probability between adjacent bins.
• Monitor synoptic weather patterns: a cold front moving through the Pampas before or during July 4 would push probability toward lower bins such as 9°C or 10°C.
• Warm air advection from the northwest, which is less common but not rare in Buenos Aires winter, would shift probability toward 12°C or 13°C.
• Any increase in trading volume close to resolution will signal that traders have received new model data and are repositioning accordingly.

The data as of July 3 places the 11°C bin in a structurally reasonable position. With $8,635 in total volume, this market is thin enough that no single piece of forecast data should be ignored. The adjacent bins on either side represent a real and distributed NO probability. The market is pricing uncertainty, not science.

LINES VERDICT

SINGLE BIN, WIDE UNCERTAINTY

The 11°C bin is the modal outcome in a highly fragmented market, but adjacent bins collectively hold more probability than the YES side. The data doesn’t care about the politics, and right now the data points to a coin-flip-plus outcome rather than a high-confidence call.

What the market says: At 42.5% implied probability, traders rate the 11°C outcome as the most likely single result, but the NO side at 57.5% reflects how much probability remains spread across competing bins. With resolution in under 24 hours, a single updated forecast run could reprice this contract sharply in either direction.

Key unknown: The final forecast model run from Argentina’s SMN or a global model such as ECMWF or GFS issued in the hours before noon on July 4 is the single most important input. That update will either confirm the 11°C bin or shift probability to an adjacent outcome before the market closes.