Skip to main content
icon for Highest temperature in Hong Kong on May 19?

Highest temperature in Hong Kong on May 19?

icon for Highest temperature in Hong Kong on May 19?

Highest temperature in Hong Kong on May 19?

May 15

May 16

May 17

May 18

May 15

May 16

May 17

May 18

28°C 31%

29°C 22%

27°C 19%

30°C 12%

Polymarket
NEW

28°C 31%

29°C 22%

27°C 19%

30°C 12%

Polymarket
NEW

22°C or below

$150 Vol.

<1%

23°C

$314 Vol.

<1%

24°C

$352 Vol.

1%

25°C

$20 Vol.

2%

26°C

$184 Vol.

3%

27°C

$18 Vol.

19%

28°C

$20 Vol.

31%

29°C

$14 Vol.

22%

30°C

$71 Vol.

12%

31°C

$2 Vol.

7%

32°C or higher

$13 Vol.

4%

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 19 May '26. The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Max (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 This market can not resolve to "Yes" until data for this date has been finalized. 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 finalized for this market's timeframe will not be considered for this market's resolution.Latest multi-model forecasts from the Hong Kong Observatory point to a maximum near 28°C on May 19, supported by a subtropical ridge delivering light southerly flow, moderate humidity around 75–85 percent, and limited cloud cover that favors diurnal warming. Seasonal guidance for May–July already flags normal-to-above-normal temperatures, yet short-range uncertainty arises from possible afternoon convective showers that could cap the peak at 27°C or allow brief clearing to push it toward 29°C. Traders weigh these variables against historical May maxima averaging 28–29°C, with resolution hinging on the official 24-hour maximum recorded at the King’s Park reference station.

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 19 May '26.

The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Max (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

This market can not resolve to "Yes" until data for this date has been finalized.

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 finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$1,157
End Date
May 19, 2026
Market Opened
May 17, 2026, 12:04 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 19 May '26. The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Max (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 This market can not resolve to "Yes" until data for this date has been finalized. 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 finalized for this market's timeframe will not be considered for this market's resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 19 May '26. The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Max (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 This market can not resolve to "Yes" until data for this date has been finalized. 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 finalized for this market's timeframe will not be considered for this market's resolution.Latest multi-model forecasts from the Hong Kong Observatory point to a maximum near 28°C on May 19, supported by a subtropical ridge delivering light southerly flow, moderate humidity around 75–85 percent, and limited cloud cover that favors diurnal warming. Seasonal guidance for May–July already flags normal-to-above-normal temperatures, yet short-range uncertainty arises from possible afternoon convective showers that could cap the peak at 27°C or allow brief clearing to push it toward 29°C. Traders weigh these variables against historical May maxima averaging 28–29°C, with resolution hinging on the official 24-hour maximum recorded at the King’s Park reference station.

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 19 May '26.

The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Max (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

This market can not resolve to "Yes" until data for this date has been finalized.

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 finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$1,157
End Date
May 19, 2026
Market Opened
May 17, 2026, 12:04 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 19 May '26. The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Max (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 This market can not resolve to "Yes" until data for this date has been finalized. 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 finalized for this market's timeframe will not be considered for this market's resolution.

Related

icon for Will the highest temperature in Hong Kong be 27°C on May 18?

Will the highest temperature in Hong Kong be 27°C on May 18?

31%
icon for Will the lowest temperature in Hong Kong be 24°C on May 18?

Will the lowest temperature in Hong Kong be 24°C on May 18?

45%
icon for Will the lowest temperature in Hong Kong be 29°C or higher on May 21?

Will the lowest temperature in Hong Kong be 29°C or higher on May 21?

38%

Beware of external links.

Frequently Asked Questions

"Highest temperature in Hong Kong on May 19?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "28°C" at 31%, followed by "29°C" at 22%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 31¢ implies that the market collectively assigns a 31% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Highest temperature in Hong Kong on May 19?" is a newly created market on Polymarket, launched on May 17, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Highest temperature in Hong Kong on May 19?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Highest temperature in Hong Kong on May 19?" is "28°C" at 31%, meaning the market assigns a 31% chance to that outcome. The next closest outcome is "29°C" at 22%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Highest temperature in Hong Kong on May 19?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.