Guangzhou July 21 High Temp: Market Locks In 31°C

The data doesn’t care about the politics, and right now the data has made up its mind. The Guangzhou highest-temperature market for July 21 sits at 98.3% implied probability for 31°C. That is not a market pricing uncertainty. That is a market that has resolved itself before the official data does.

This contract asks a simple question: will Guangzhou’s highest temperature on July 21, 2026 land exactly at 31°C? The YES price is 0.98 and the NO price is 0.02, with resolution set for 2026-07-21 at 12:00 UTC. Total volume stands at $83,575, with $77,690 of that arriving in the last 24 hours.

How the Guangzhou 31°C Contract Resolves

YES pays out if Guangzhou’s official peak temperature on July 21 registers exactly 31°C. The market resolves at 12:00 UTC on July 21. Competing outcomes include every bracket from 26°C or below up through 36°C or higher, so the field is wide. This specific bracket wins only if the daily high lands precisely on 31.

• YES (31°C exactly): priced at 0.98, implying 98.3% probability.
• NO (any other temperature bracket): priced at 0.02, implying 1.7% probability.

The NO side requires Guangzhou’s daily high to land in any bracket other than 31°C. That means 30°C, 32°C, or anything above or below. In mid-July, Guangzhou’s typical highs cluster between 31°C and 34°C. A meaningful shift in sea-breeze patterns, cloud cover, or an afternoon thunderstorm could push the reading into a neighboring bracket. The window is narrow, but it is not zero.

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Momentum and Market Conviction

Here’s what the measurements are telling us about market movement: the 24-hour price change of +62.5% combined with a trend score of 64.60 and flat 1-hour movement signals a sharp, news-driven repricing that has now stabilized. The most likely driver is real-time temperature data becoming available for July 21, locking traders into a confirmed reading. When a market surges 62.5% in 24 hours and then flatlines, the market is not guessing anymore.

Total volume of $83,575 with $77,690 arriving in the last 24 hours confirms that this is a late-stage conviction move, not early positioning. Liquidity at $173,401 is healthy relative to volume, meaning the order book can absorb movement without wild price swings. Volume is below $1M overall, so a single large trade could still shift the price, but the directional lean is overwhelmingly one-sided.

• The 24-hour momentum of +62.5% and trend score of 64.60 point to confirmed temperature data arriving and traders pricing the outcome as settled.
• 24-hour volume of $77,690 represents 93% of all trading activity, showing this market lit up in the final hours before resolution.
• Liquidity of $173,401 exceeds total volume, which is unusual and suggests significant market-maker capital backing the current price.
• The 1-hour change of +0.0% after the 24-hour surge indicates price discovery is complete at 0.98.
• Trader sentiment breakdown confirms 98.3% YES versus 1.7% NO, with no meaningful dissent in the order book.

Lines Analysis: Guangzhou Temperature Data

The July historical baseline for Guangzhou strongly supports a 31°C to 34°C range on typical summer days. Guangzhou sits in a subtropical monsoon climate zone where July highs are rarely below 30°C and frequently exceed 33°C. A reading of exactly 31°C would represent the cooler end of the summer range, consistent with cloud cover or rain activity suppressing the afternoon peak. The market’s near-certainty suggests traders have access to early July 21 readings that confirm this bracket.

The barrier for any other outcome is straightforward but real. A 32°C reading, which is just one degree warmer, would invalidate the YES position entirely. Guangzhou’s afternoon temperatures can tick upward quickly if morning cloud cover burns off. An unexpectedly sunny afternoon, or a delayed sea breeze, shifts the reading into the 32°C bracket. The market is pricing that risk at 1.7%, which is essentially a rounding error but not nothing.

• Any official temperature reading above 31°C before the 12:00 UTC resolution window would reprice the NO side sharply upward.
• Afternoon weather observations from Guangzhou Baiyun station are the single most important data input for this contract.
• A shift in wind direction or cloud dissipation between now and 12:00 UTC is the residual risk the 1.7% NO price captures.
• Correlated movement in the Highest Temperature in Seoul on July 21 market could signal a regional weather pattern affecting both cities simultaneously.

The market is pricing uncertainty, not science, and right now there is almost no uncertainty left in this contract. Total volume of $83,575 reflects a small but active trader pool that reached strong consensus fast. The data favors YES, and the market has already acted on it.

LINES VERDICT

EFFECTIVELY RESOLVED

The Guangzhou July 21 temperature market has already done the work. A 62.5% surge in 24 hours followed by price stability at 0.98 means traders have confirmed the measurement, not anticipated it.

What the market says: 98.3% probability that Guangzhou’s July 21 high lands exactly at 31°C. With resolution at 12:00 UTC today, the window for any price shift is measured in minutes, not hours. Late-moving capital at this stage faces near-zero upside on YES and long-shot odds on NO.

Key unknown: The single event that would reprice this contract is an official temperature reading from Guangzhou’s meteorological station showing anything other than 31°C before the 12:00 UTC resolution cutoff.