Rolr3 1920x300
Shenzhen Peak Heat: Will July 11 Hit Thirty-Four Celsius?

Shenzhen Peak Heat: Will July 11 Hit Thirty-Four Celsius?

View on Polymarket →
SR Sofia Renard Climate & Science Analyst
Embed this market
Lines Verdict
YES at 100% implied probability

THIRTY-FOUR CELSIUS HOLDS NARROW EDGE: The market repriced sharply on July 11 morning data and the meteorological setup supports a 34°C peak, but the one-degree resolution window leaves meaningful NO exposure. Market probability: 73.5%.

100% Market Probability
1h +3.4% 24h +75.4% Trend Moderate (50/100)
Volume
$81.7K
$56.0K in 24h
Liquidity
$116.6K
Deep liquidity
Time Left
6 hours
Resolves Jul 11
82K Vol. Jul 11, 2026
34°C $11K Vol.
100%
29°C or below $5K Vol.
0%
30°C $5K Vol.
0%
31°C $5K Vol.
0%
32°C $6K Vol.
0%
33°C $8K Vol.
0%

Shenzhen’s air temperature is closing in on a single contested threshold this afternoon. The market has moved decisively: traders have priced a thirty-four degree Celsius peak at seventy-three and a half percent probability on July 11, 2026. That twenty-point-five percent surge in the last twenty-four hours is not noise. It is the market reacting to real thermometer data as the day unfolds.

The market question asks: will Shenzhen’s highest temperature on July 11 land at thirty-four degrees Celsius? The YES contract trades at 0.74 and the NO contract at 0.27. This market resolves at noon on July 11, 2026. Total volume across all outcomes stands at $64,272, with $45,945 changing hands in the last twenty-four hours alone.

How the Thirty-Four Celsius Contract Works

This is a single-outcome contract in a multi-bucket temperature market. YES resolves if the official highest temperature recorded in Shenzhen on July 11, 2026 equals exactly thirty-four degrees Celsius, as determined by the market’s designated resolution source. Competing outcome buckets include thirty-three, thirty-five, thirty-six, thirty-seven, thirty-eight, thirty-nine or higher, and several below-thirty-three options.

  • YES (34°C peak): 0.74, implying 73.5% probability
  • NO (any other peak temperature): 0.27, implying 26.5% probability

The NO position covers a wide range. Shenzhen’s recorded high must land outside the thirty-four degree bucket entirely. July in Shenzhen sits deep inside subtropical monsoon season. The Pearl River Delta regularly records afternoon highs between thirty-three and thirty-seven degrees Celsius in mid-July. A cloud burst, an early sea breeze, or a stalled front could push the peak into the thirty-three degree bucket. A stronger ridge could push it to thirty-five or above. Either outcome pays the NO contract.

Momentum and Market Signals

Sponsored Partner
ROLRROLR

The momentum composite here is sharp and directional. The one-hour price change is flat at zero percent, but the twenty-four-hour move of plus twenty point five percent drives the signal. Combined with a trend score of fifty point six one, this pattern reads as a market that absorbed new intraday temperature data and repriced hard toward thirty-four degrees. The driver is almost certainly real-time or near-real-time weather observation data feeding trader positioning as July 11 progresses.

Total volume of $64,272 with $45,945 in the last twenty-four hours shows this market is active but not deep. Liquidity sits at $64,956. Volume below one million dollars means a single large trade can move the price sharply, especially this close to the noon resolution window. Treat the current price as directionally credible but mechanically fragile.

  • The 24h price surge of plus twenty point five percent connects directly to intraday temperature readings approaching the thirty-four degree mark as of July 11 morning.
  • The 1h price change of zero percent suggests the market has stabilized around this estimate pending the final peak reading.
  • Liquidity at $64,956 is thin enough that a sudden weather event (rain, cloud cover, sea breeze) could reprice the thirty-three or thirty-five bucket rapidly.
  • Trader sentiment runs strongly bullish at 73.5% YES versus 26.5% NO, consistent with the price signal.
  • The trend score of 50.61 reflects a market in transition, not yet locked in, still sensitive to the next temperature observation.

Lines Analysis: Shenzhen’s Afternoon Thermometer

Here’s what the measurements are telling us. Shenzhen in mid-July operates under persistent subtropical high pressure that parks afternoon highs between thirty-three and thirty-six degrees Celsius on most days. The thirty-four degree bucket is statistically the modal outcome for this time of year under typical synoptic conditions. When traders poured volume into this contract on July 10 and the morning of July 11, they were almost certainly tracking weather station data showing temperatures climbing toward but not yet exceeding thirty-four degrees.

The data doesn’t care about the politics, and it doesn’t care about adjacent prediction markets either. The twenty-six point five percent NO probability reflects genuine meteorological uncertainty. Shenzhen’s coastal position means afternoon sea breezes can cap temperatures at thirty-three degrees. A convective shower ahead of schedule pushes the peak down. A stronger western Pacific subtropical ridge with low cloud cover suppression pushes it toward thirty-five. The thirty-four bucket wins only if the day’s peak lands precisely in that one-degree range, not merely near it.

  • Hong Kong Observatory and China Meteorological Administration surface station data for Shenzhen are the primary real-world inputs traders should monitor for this resolution.
  • Any reported afternoon thunderstorm activity in the Pearl River Delta before noon local time would shift probability toward the thirty-three degree bucket.
  • A clear sky persisting past 11 AM local time with southwesterly flow would support continued pricing near the current level.
  • The narrow resolution window (noon July 11) means any price movement from here is driven purely by the final observed temperature reading.
  • Competing buckets at thirty-three and thirty-five degrees are the primary repricing destinations if the thirty-four estimate breaks.

The market is pricing uncertainty, not science. Total volume of $64,272 is small. The current seventy-three and a half percent probability reflects the best collective estimate of active traders given real-time conditions, but thin liquidity amplifies the price impact of any single new data point before resolution.

LINES VERDICT

THIRTY-FOUR CELSIUS HOLDS NARROW EDGE

The market repriced sharply on July 11 morning data, and the thirty-four degree bucket now carries a clear majority. The meteorological logic supports it, but the resolution window is tight and the margin for error is exactly one degree in either direction.

What the market says: At seventy-three and a half percent, traders have made a strong directional call that Shenzhen’s July 11 peak lands at thirty-four degrees Celsius. Thin volume below one million dollars means this price remains sensitive to any last-minute temperature shift before the noon resolution.

Key unknown: The single data point that resolves this contract is the official peak temperature reading from Shenzhen surface stations before noon on July 11. Any convective activity or sea breeze onset in the final two hours before resolution is the primary repricing risk.

Frequently Asked Questions

Traders collectively estimate a 73.5% chance Shenzhen's highest temperature on July 11 lands exactly at 34°C. It reflects current market consensus, not a guaranteed scientific forecast.

The NO contract pays if Shenzhen's July 11 peak temperature is anything other than 34°C. That includes 33°C, 35°C, or any other bucket in the multi-outcome market.

Real-time surface temperature readings from Shenzhen weather stations are the primary driver. A convective shower or strong sea breeze before noon local time would shift probability toward the 33°C bucket.

The market resolves at noon on July 11, 2026, based on the official highest temperature recorded in Shenzhen during that day as determined by the resolution source.

Total volume is $64,272, well below $1 million. Thin liquidity means a single large trade can move the price sharply. Treat the 73.5% figure as directionally credible but mechanically fragile.

We aggregate the live positions of the top 50 Polymarket whales (ranked by 30-day tracked volume) into one composite reading per market. It refreshes every hour. The percentage shows how many of those whales hold YES versus NO; the net dollar position shows the cohort's directional exposure in dollars.

A convergence event fires when three or more tracked wallets buy the same outcome on the same market within a four-hour window. We surface these in the activity feed and the VIP digest.

No. Lines is an editorial and data product. We do not operate prediction markets, custody funds, or accept trades. All trade flows deep-link to Polymarket via our affiliate code. Probabilities shown are market-implied and not predictions or recommendations.

What Could Shift These Probabilities?

Subtropical Ridge Holds

Clear skies persist over the Pearl River Delta through late morning on July 11. No convective activity disrupts the boundary layer. Shenzhen surface stations record a peak reading squarely at 34°C before noon. The YES contract resolves at full value and the 73.5% market estimate proves accurate.

Sea Breeze Caps the Peak

An earlier-than-expected onshore sea breeze from Daya Bay pushes cooler maritime air into the Shenzhen basin before 11 AM local time. The afternoon maximum stalls at 33°C. Volume rushes into the 33°C bucket, collapsing the 34°C YES price before resolution and paying the NO contract.

Stronger Heating Pushes Thirty-Five

Low humidity and sustained southwesterly flow amplify surface heating beyond the model consensus. Shenzhen stations record a peak of 35°C rather than 34°C. The 35°C bucket reprices sharply upward in the final trading window. Holders of the 34°C YES contract lose despite the market's directional conviction.

Sudden Convective Shower Before Noon

A fast-moving mesoscale convective system develops over the Pearl River estuary and drops a brief but intense shower on central Shenzhen before 11 AM. The event cools the surface rapidly and locks the daily maximum at 32°C or below. Multiple competing low-temperature buckets reprice simultaneously, creating a chaotic final market.

Key macro factor: The western Pacific subtropical high's position and intensity over southern China in mid-July is the dominant synoptic driver for Shenzhen's daily temperature range and directly determines which bucket resolves YES.

Market Timeline

Jul 9, 4:03 AM
Market Created
Jul 9, 4:03 AM
Market Opened
12:00 PM
Market Resolution

Market Comments

Probabilities shown are market-implied and not predictions or recommendations. This content is for informational purposes only.