Buenos Aires July 9 High Temp: 18°C at 29.5%

Buenos Aires sits deep in its Southern Hemisphere winter right now. The city’s July daily high temperatures historically cluster between 14°C and 18°C, with the long-term July average hovering near 15°C to 16°C. The market has priced 18°C as the leading single outcome at 29.5%, which tells you traders expect a mild day, not a cold one. Here’s what the measurements are telling us: the spread across eleven possible outcomes means no single result commands conviction, and this market is pricing uncertainty, not science.

The market question asks for the highest temperature recorded in Buenos Aires on July 9, 2026. The 18°C outcome trades at $0.30 YES and $0.71 NO. The market resolves at 12:00 UTC on July 9, 2026. Total volume stands at $4,134, all of it placed within the last 24 hours, which makes this a brand-new, thinly traded contract.

How the Buenos Aires Temperature Contract Works

This contract resolves YES if Buenos Aires records a daily maximum temperature of exactly 18°C on July 9, 2026. Resolution uses weather observation data as specified by the market source. Every other temperature outcome, from 11°C or below up to 21°C or higher, trades as a separate contract. Buying YES on 18°C pays out only if the official daily high lands exactly on that value.

• YES ($0.30): The Buenos Aires daily high on July 9 reaches exactly 18°C.
• NO ($0.71): The daily high falls at any other temperature, whether warmer or colder than 18°C.

The NO side wins in ten out of eleven possible temperature buckets. A reading of 17°C, 19°C, 16°C, or any other outcome all pay the NO contract. For 18°C to miss, Buenos Aires simply needs to record any temperature other than that specific value. In mid-winter, a cold front pushing the high to 14°C or 15°C would be enough. So would an unusually warm August-preview day nudging the high to 20°C or above.

Momentum and Market Signals

Sponsored Partner

The momentum composite here is minimal. The 1-hour price change shows a modest plus-1.0% tick, and the trend score of 54.21 sits just above neutral. That combination suggests no strong directional push in either direction. The most likely driver is simply traders positioning ahead of a short-resolution window, not any breaking weather data or agency announcement.

Total volume is $4,134, with all of that trading in the last 24 hours. Liquidity sits at $33,894, which is relatively healthy compared to volume. That liquidity-to-volume ratio matters here: thin volume means the 18°C price can shift sharply if a few hundred dollars flow in on any competing outcome. The data doesn’t care about the politics, but it does care about order book depth, and right now the depth far exceeds the trading activity.

• The 1-hour uptick of plus-1.0% on the 18°C contract reflects light buying pressure, not a momentum signal worth trading around.
• Total volume of $4,134 is well below $1M, which means any single moderate-sized bet could reprice this contract significantly before resolution.
• Liquidity of $33,894 provides a reasonable cushion, but this market remains highly susceptible to late weather data moving trader positions.
• No whale trades are present, leaving price discovery entirely to smaller retail participants.
• The 24-hour price data reflects the full life of this contract, confirming it opened and has traded in a tight range near its current level.

Lines Analysis: Buenos Aires Winter Temperature Range

The case for 18°C sitting at 29.5% makes intuitive sense when you look at Buenos Aires winter climatology. July highs in the city regularly reach 17°C to 19°C during mild periods, and 18°C falls squarely in the central range of typical winter days. The Argentine Meteorological Service and global forecast models for early July 2026 show no extreme cold outbreak currently on the horizon for the Buenos Aires region. A neutral-to-mild winter day favors the 17°C to 19°C cluster, and 18°C captures the center of that cluster.

What makes the NO outcome real is straightforward math. Eleven possible outcome buckets split the probability space, so even a favorable temperature range for 18°C still leaves most probability distributed across adjacent outcomes. A reading of 17°C or 19°C, just one degree off, shifts the payout entirely to NO. Winter cold fronts crossing the Pampas can push Buenos Aires highs well below 16°C in a matter of hours, and those events are not rare in July. The city recorded highs of 13°C to 14°C on multiple July days in recent years.

• The Servicio Meteorologico Nacional (Argentina’s official weather agency) issues short-range forecasts that will reprice this contract as July 9 approaches.
• Any updated forecast showing a cold front arrival before midday on July 9 shifts probability toward the 14°C to 16°C outcomes and away from 18°C.
• A forecast showing a warm, dry day with northerly winds would push probability toward 19°C or 20°C outcomes and also away from 18°C.
• Global model consensus between the European Centre for Medium-Range Weather Forecasts and NOAA’s GFS will be the clearest signal in the final 48 hours.
• Any observed temperature reading from Buenos Aires early on July 9 would immediately collapse most of the uncertainty in this contract.

Total volume of $4,134 reflects a market that is still forming its view. The data favors a mild winter day in the 16°C to 19°C range, which means 18°C is a reasonable central guess. But the multi-outcome structure means the probability is inherently fragmented, and 29.5% is actually a strong single-outcome reading given how many buckets exist.

LINES VERDICT

LEADING OUTCOME IN A FRAGMENTED FIELD

The 18°C outcome holds the highest single probability in an eleven-way split, which reflects Buenos Aires mid-winter climatology more than strong market conviction. The data doesn’t care about the politics, and here the data simply says winter days in that city cluster near this temperature range.

What the market says: At 29.5%, the market rates 18°C as the most likely single outcome but far from certain. Thin volume below $5,000 means price can shift sharply on any weather update before the July 9 resolution.

Key unknown: The next 24 to 48 hours of weather model output from NOAA’s GFS and the European model will determine whether a cold front or a warm air mass dominates Buenos Aires on July 9. That single forecast update is the only thing that will meaningfully reprice this contract.