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Singapore High Temp June 23: Will 32C Hit?

Singapore High Temp June 23: Will 32C Hit?

SR Sofia Renard Climate & Science Analyst
Market Resolved
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Resolution Verdict
YES Market Resolved

Market has ended. Final implied probability: 100%.

Resolved
Volume
$85.2K
$54.3K in 24h
Liquidity
$100.6K
Deep liquidity
Time Left
Ended
Resolves Jun 23
85K Vol. Ended
32°C $16K Vol.
100%
25°C or below $378 Vol.
0%
26°C $4K Vol.
0%
27°C $2K Vol.
0%
28°C $5K Vol.
0%
29°C $7K Vol.
0%

Singapore sits one degree north of the equator, and on June 23, 2026, traders are betting on exactly how hot that gets. The 32°C outcome has surged to 75.5% implied probability, driven by a momentum signal that is about as strong as this market produces. Here’s what the measurements are telling us: the market moved 39 percentage points in 24 hours. That is not noise.

The market question asks whether Singapore’s highest temperature on June 23 will reach exactly 32°C. The 32°C contract trades at $0.76 YES and $0.25 NO. The market resolves June 23, 2026, at noon UTC, and total volume has reached $58,015.

How the 32°C Contract Works

The YES contract pays out if Singapore’s official highest recorded temperature on June 23 equals 32°C. Resolution follows official meteorological reporting, most likely from the Meteorological Service Singapore, which publishes daily maximum temperatures. A reading one degree higher or lower sends the payout to a different outcome contract entirely.

  • YES (32°C): $0.76 per share, 75.5% implied probability. Pays if the daily maximum lands exactly at 32°C.
  • NO: $0.25 per share, 24.5% implied probability. Pays if any other outcome resolves, from 25°C or below up to 35°C or higher.

The NO side covers a wide range. Singapore’s daily maximum missing 32°C is not far-fetched. The city-state typically sees highs between 30°C and 34°C, with 33°C and 34°C both plausible on a warm June afternoon. Any reading outside the 32°C bin resolves NO for this contract, which means even a one-degree overshoot hands the payout to the 33°C contract instead.

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Momentum and Market Signals

The combined momentum signal here is unusually sharp. A 30.5% one-hour price change stacked on a 39% 24-hour gain, with a trend score of 86.88, points to one thing: new information entered this market fast. The most likely driver is short-range weather model output. Singapore’s Meteorological Service Singapore and regional numerical weather prediction models update in 6- to 12-hour cycles. Traders who track those outputs have a real edge in daily temperature contracts like this one.

Total volume stands at $58,015, with $33,737 traded in the last 24 hours. That is more than half the market’s entire lifetime volume arriving in a single day. Liquidity sits at $148,911, which is deep for this contract size. The data doesn’t care about the politics, and here the data says traders are not hesitating.

  • The 1-hour price change of plus 30.5% combined with the 24-hour change of plus 39% and a trend score of 86.88 point to a sharp, recent information event, almost certainly weather model output for June 23.
  • Volume concentration in the last 24 hours ($33,737 of $58,015 total) signals conviction, not gradual drift.
  • Liquidity at $148,911 exceeds total volume significantly, meaning the order book can absorb further movement without wide spreads.
  • Trader sentiment reads 75.5% YES versus 24.5% NO, consistent with the current price.
  • No whale trades are recorded in this market, so the volume is distributed across smaller positions.

Lines Analysis: Singapore Temperature on June 23

Singapore’s June climate is governed by the inter-monsoon transition and the Southwest Monsoon onset. June typically brings warm, humid conditions with afternoon maximums clustered between 31°C and 34°C. The 32°C reading sits in the middle of that range. For YES to resolve, the Meteorological Service Singapore’s official daily maximum needs to land precisely on that bin, not 31°C, not 33°C. That precision requirement is exactly why this contract spent most of its life at much lower odds before the recent surge.

The NO side has real structure even at 24.5%. Singapore’s June afternoon temperatures frequently exceed 32°C, reaching 33°C or 34°C on days with stronger solar radiation and lighter sea breezes. The Meteorological Service Singapore records temperatures at Changi Climate Station, the standard reference point. If regional models are now converging on a 32°C maximum, that explains the price move. But model output for tomorrow’s high carries a margin of error of plus or minus one degree on a calm day, and the tropics can surprise.

  • Meteorological Service Singapore’s official daily maximum publication will determine resolution. Any delay or data anomaly creates uncertainty near the close.
  • Regional weather model updates in the next 12 hours will be the single largest price mover before resolution.
  • Sea surface temperature anomalies in the South China Sea influence Singapore’s afternoon maximums. Warmer waters extend the warm season into June.
  • Urban heat island effects at Changi can push readings slightly above open-country forecasts.
  • Cloud cover timing matters. Afternoon convection can cap the maximum by pulling in cooler air before the peak reading occurs.

The market is pricing uncertainty, not science, at this resolution scale. Total volume of $58,015 with over half arriving in 24 hours reflects traders acting on short-range forecast data. The evidence from the momentum signal favors the 32°C outcome, but the NO side at 24.5% reflects the genuine meteorological uncertainty of landing on any single one-degree temperature bin.

LINES VERDICT

NARROW FAVORITE, MEANINGFUL UNCERTAINTY

The momentum signal is as sharp as this market produces, and the liquidity depth suggests informed traders have priced in recent model output. But a one-degree temperature bin in a tropical city with afternoon convection variability keeps NO alive at roughly one-in-four odds.

What the market says: 75.5% implied probability that Singapore’s June 23 high lands exactly at 32°C. The 39% price surge in 24 hours tells you something changed in the weather models. With resolution tomorrow at noon UTC, any further model updates in the next 12 hours could move this price in either direction.

Key unknown: The Meteorological Service Singapore’s official daily maximum temperature reading for June 23. Short-range numerical weather prediction model output in the next 6 to 12 hours is the single event that would reprice this contract before resolution.

Frequently Asked Questions

It means traders collectively price a roughly three-in-four chance that Singapore's official June 23 daily maximum lands exactly at 32°C. Prices shift as new weather model data arrives before resolution.

NO pays out on this 32°C contract. A 33°C reading resolves the separate 33°C outcome contract as YES and every other contract, including 32°C, as NO.

Short-range weather model updates from Meteorological Service Singapore or regional numerical prediction systems. These update every 6 to 12 hours and directly influence trader positioning on daily temperature contracts.

Resolution is set for June 23, 2026, at noon UTC. The Meteorological Service Singapore's official daily maximum temperature reading for that date determines the outcome.

Total volume is $58,015 with $33,737 arriving in the last 24 hours. Liquidity is $148,911. The depth is solid for a one-day temperature contract, though total volume is modest by broader market standards.

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.

Market Resolved Outcome: YES
Final Price 100%
Settled Jun 23, 2026
Duration 2 days

Resolution Analysis

Model Consensus Firms at 32°C

If the next Meteorological Service Singapore forecast cycle and regional numerical weather prediction models both converge on a 32°C daily maximum for June 23, the YES price could push well above 80%. Calm morning conditions with light winds and moderate cloud cover would support a midday peak in the 32°C range without overshooting into 33°C territory.

Afternoon Convection Caps the High at 31°C

An earlier-than-forecast onset of afternoon thunderstorms over Singapore could pull in cooler air before the daily maximum is recorded. Meteorological Service Singapore data shows convective events in June can suppress the afternoon peak by one to two degrees. A 31°C reading would resolve NO on this contract and shift payout to the 31°C bin.

33°C or 34°C Overshoot Lifts the NO Side

Singapore's urban heat island and stronger-than-expected solar radiation could push the official Changi reading past 32°C into the 33°C or 34°C bin. This outcome resolves NO on the 32°C contract. The 24.5% NO price reflects this genuine upside risk, and a model update showing warmer-than-expected boundary layer temperatures would reprice it higher.

Data Delay or Reporting Anomaly Near Resolution

Meteorological Service Singapore resolution depends on official data publication timing. If an instrument anomaly at Changi Climate Station or a data processing delay prevents official confirmation before the noon UTC cutoff, resolution could be delayed or disputed. Small-volume markets like this one are more sensitive to procedural edge cases than liquid contracts with established resolution tracks.

Key macro factor: Singapore's June 2026 temperatures are influenced by the Southwest Monsoon transition and regional sea surface temperature anomalies in the South China Sea, which remain elevated above the 1991-2020 baseline.

Market Timeline

Jun 21, 2026, 4:03 AM
Market Created
Jun 21, 2026, 4:15 AM
Market Opened
Jun 23, 2026
Market Resolution

Market Comments

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