Skip to main content
Market icon

Highest temperature in Hong Kong on April 17?

Market icon

Highest temperature in Hong Kong on April 17?

Apr 17

Apr 18

Apr 19

Apr 20

Apr 17

Apr 18

Apr 19

Apr 20

28°C 99.4%

21°C or below <1%

23°C <1%

30°C <1%

Polymarket

$402,780 Vol.

28°C 99.4%

21°C or below <1%

23°C <1%

30°C <1%

Polymarket

$402,780 Vol.

21°C or below

$20,693 Vol.

<1%

22°C

$9,510 Vol.

<1%

23°C

$17,752 Vol.

<1%

24°C

$10,681 Vol.

<1%

25°C

$14,096 Vol.

<1%

26°C

$29,643 Vol.

<1%

27°C

$57,046 Vol.

<1%

28°C

$131,229 Vol.

99%

29°C

$56,044 Vol.

<1%

30°C

$37,868 Vol.

<1%

31°C or higher

$18,227 Vol.

<1%

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 17 Apr '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.Hong Kong Observatory (HKO) observations confirm that the highest air temperature across its automatic weather station network peaked at 28°C on April 17, 2026, under a weakening trough of low pressure that allowed sunny intervals amid isolated showers, driving trader consensus to a 99.9% implied probability for this outcome. This measurement, taken at standard 1.5-meter screen height, aligns with HKO's seasonal forecast of normal to above-normal April temperatures, consistent with 2026's projected warmer-than-average conditions influenced by persistent subtropical high pressure influences. Realistic challenges are minimal—only a rare post hoc data audit revealing a higher reading at a remote station could alter resolution, though HKO's quality controls make this improbable.

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 17 Apr '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
$402,780
End Date
Apr 17, 2026
Market Opened
Apr 15, 2026, 12:06 AM ET

Resolver

0x69c47De9D...
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 17 Apr '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 17 Apr '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.Hong Kong Observatory (HKO) observations confirm that the highest air temperature across its automatic weather station network peaked at 28°C on April 17, 2026, under a weakening trough of low pressure that allowed sunny intervals amid isolated showers, driving trader consensus to a 99.9% implied probability for this outcome. This measurement, taken at standard 1.5-meter screen height, aligns with HKO's seasonal forecast of normal to above-normal April temperatures, consistent with 2026's projected warmer-than-average conditions influenced by persistent subtropical high pressure influences. Realistic challenges are minimal—only a rare post hoc data audit revealing a higher reading at a remote station could alter resolution, though HKO's quality controls make this improbable.

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 17 Apr '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
$402,780
End Date
Apr 17, 2026
Market Opened
Apr 15, 2026, 12:06 AM ET

Resolver

0x69c47De9D...
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 17 Apr '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.

Beware of external links.

Frequently Asked Questions

"Highest temperature in Hong Kong on April 17?" 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 99%, followed by "21°C or below" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 99¢ implies that the market collectively assigns a 99% 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.

As of today, "Highest temperature in Hong Kong on April 17?" has generated $402.8K in total trading volume since the market launched on Apr 15, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Highest temperature in Hong Kong on April 17?," 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 April 17?" is "28°C" at 99%, meaning the market assigns a 99% chance to that outcome. The next closest outcome is "21°C or below" at 0%. 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 April 17?" 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.