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Highest temperature in Hong Kong on May 4?

icon for Highest temperature in Hong Kong on May 4?

Highest temperature in Hong Kong on May 4?

26°C or higher 100.0%

16°C or below <1%

17°C <1%

18°C <1%

Polymarket

$189,464 Vol.

26°C or higher 100.0%

16°C or below <1%

17°C <1%

18°C <1%

Polymarket

$189,464 Vol.

16°C or below

$2,282 Vol.

No

17°C

$6,301 Vol.

No

18°C

$671 Vol.

No

19°C

$1,242 Vol.

No

20°C

$2,219 Vol.

No

21°C

$4,390 Vol.

No

22°C

$10,486 Vol.

No

23°C

$16,474 Vol.

No

24°C

$43,144 Vol.

No

25°C

$25,433 Vol.

No

26°C or higher

$76,821 Vol.

Yes

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 4 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.Hong Kong Observatory (HKO) measurements confirm the highest temperature on May 4, 2026, reached 28°C at midday under partly cloudy skies, as moderating northeast monsoon winds eased following a thunderstorm warning cancellation late that evening. This aligns precisely with May's climatological normal maximum of around 28°C at the Observatory headquarters and HKO's seasonal forecast of normal to above-normal temperatures for May-July amid transitioning monsoon patterns. Trader consensus at 100% implied probability for 26°C or higher reflects this verified observational data from the Absolute Daily Max in HKO's Daily Extract, with resolution pending finalization. Realistic challenges would require an unprecedented data revision post-finalization, as short-range model consensus had anticipated sufficient solar heating to surpass 26°C thresholds.

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 4 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
$189,464
End Date
May 4, 2026
Market Opened
May 2, 2026, 12:08 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 4 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.

Outcome proposed: No

No dispute

Final outcome: No

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 4 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.Hong Kong Observatory (HKO) measurements confirm the highest temperature on May 4, 2026, reached 28°C at midday under partly cloudy skies, as moderating northeast monsoon winds eased following a thunderstorm warning cancellation late that evening. This aligns precisely with May's climatological normal maximum of around 28°C at the Observatory headquarters and HKO's seasonal forecast of normal to above-normal temperatures for May-July amid transitioning monsoon patterns. Trader consensus at 100% implied probability for 26°C or higher reflects this verified observational data from the Absolute Daily Max in HKO's Daily Extract, with resolution pending finalization. Realistic challenges would require an unprecedented data revision post-finalization, as short-range model consensus had anticipated sufficient solar heating to surpass 26°C thresholds.

This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 4 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
$189,464
End Date
May 4, 2026
Market Opened
May 2, 2026, 12:08 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 4 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.

Outcome proposed: No

No dispute

Final outcome: No

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Frequently Asked Questions

"Highest temperature in Hong Kong on May 4?" 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 "26°C or higher" at 100%, followed by "16°C or below" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 100¢ implies that the market collectively assigns a 100% 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 May 4?" has generated $189.5K in total trading volume since the market launched on May 2, 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 May 4?," 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 4?" is "26°C or higher" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "16°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 May 4?" 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.