**Northeast monsoon influence and overnight cloud cover are the main drivers positioning 27°C as the market favorite for Hong Kong’s lowest temperature on September 22.** Official Hong Kong Observatory guidance forecasts a daily range of 27–32°C under mainly cloudy skies with isolated showers, as the monsoon strengthens and brings easterly winds of force 3–4. Multiple models show nighttime lows stabilizing near 26–27°C, consistent with sea-surface temperatures around 27°C that limit radiative cooling. Historical September minima average near 25.6°C, but the current pattern—with persistent humidity (65–95%) and limited clear-sky periods—reduces the chance of deeper drops. Recent model runs and the absence of stronger cooling signals have kept trader consensus centered on 27°C (50.5% implied probability), with 26°C and 28°C as secondary outcomes. Updated HKO briefings and any overnight observations will be the next key inputs before resolution.
Ringkasan eksperimental yang dihasilkan AI dengan referensi data Polymarket. Ini bukan saran trading dan tidak berperan dalam bagaimana pasar ini diselesaikan. · DiperbaruiLowest temperature in Hong Kong on September 22?
27°C 51%
28°C 28%
26°C 17%
23°C 9%
22°C or below
2%
23°C
9%
24°C
9%
25°C
7%
26°C
17%
27°C
51%
28°C
28%
29°C
2%
30°C
<1%
31°C
<1%
32°C or higher
<1%
27°C 51%
28°C 28%
26°C 17%
23°C 9%
22°C or below
2%
23°C
9%
24°C
9%
25°C
7%
26°C
17%
27°C
51%
28°C
28%
29°C
2%
30°C
<1%
31°C
<1%
32°C or higher
<1%
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Min (deg. C)" the specified date once information is finalized in the relevant "Daily Extract", available here: https://www.weather.gov.hk/en/cis/climat.htm
In the event that there is no data for the observation date by 11:59 PM ET on the seventh day following the observation date, this market will resolve to the lowest bracket.
This market will resolve once data for this date has been published on the resolution source, or by 11:59 PM ET on the seventh day following the observation date, whichever comes first.
The resolution source for this market measures temperatures in Celsius to one decimal place (eg, 9.1°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is initially published for this market's timeframe will not be considered for this market's resolution.
Pasar Dibuka: Sep 20, 2026, 12:29 AM ET
Resolver
0x69c47De9D...The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Min (deg. C)" the specified date once information is finalized in the relevant "Daily Extract", available here: https://www.weather.gov.hk/en/cis/climat.htm
In the event that there is no data for the observation date by 11:59 PM ET on the seventh day following the observation date, this market will resolve to the lowest bracket.
This market will resolve once data for this date has been published on the resolution source, or by 11:59 PM ET on the seventh day following the observation date, whichever comes first.
The resolution source for this market measures temperatures in Celsius to one decimal place (eg, 9.1°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is initially published for this market's timeframe will not be considered for this market's resolution.
Resolver
0x69c47De9D...**Northeast monsoon influence and overnight cloud cover are the main drivers positioning 27°C as the market favorite for Hong Kong’s lowest temperature on September 22.** Official Hong Kong Observatory guidance forecasts a daily range of 27–32°C under mainly cloudy skies with isolated showers, as the monsoon strengthens and brings easterly winds of force 3–4. Multiple models show nighttime lows stabilizing near 26–27°C, consistent with sea-surface temperatures around 27°C that limit radiative cooling. Historical September minima average near 25.6°C, but the current pattern—with persistent humidity (65–95%) and limited clear-sky periods—reduces the chance of deeper drops. Recent model runs and the absence of stronger cooling signals have kept trader consensus centered on 27°C (50.5% implied probability), with 26°C and 28°C as secondary outcomes. Updated HKO briefings and any overnight observations will be the next key inputs before resolution.
Ringkasan eksperimental yang dihasilkan AI dengan referensi data Polymarket. Ini bukan saran trading dan tidak berperan dalam bagaimana pasar ini diselesaikan. · Diperbarui
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