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Highest temperature in Helsinki on April 27?

icon for Highest temperature in Helsinki on April 27?

Highest temperature in Helsinki on April 27?

10°C 100.0%

3°C or below <1%

4°C <1%

5°C <1%

Polymarket

$36,742 Vol.

10°C 100.0%

3°C or below <1%

4°C <1%

5°C <1%

Polymarket

$36,742 Vol.

3°C or below

$1,528 Vol.

No

4°C

$540 Vol.

No

5°C

$893 Vol.

No

6°C

$3,733 Vol.

No

7°C

$4,528 Vol.

No

8°C

$5,309 Vol.

No

9°C

$5,084 Vol.

No

10°C

$5,608 Vol.

Yes

11°C

$4,834 Vol.

No

12°C

$3,577 Vol.

No

13°C or higher

$1,109 Vol.

No

This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 27 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°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.Official observations from Helsinki-Vantaa Airport station, the authoritative source for this market, recorded a maximum temperature of 10°C on April 27, 2026, at approximately 12:50 local time under partly cloudy skies and northwest winds around 6 m/s. This measurement aligns precisely with Finnish Meteorological Institute (FMI) forecasts, which predicted peak warmth near 10°C amid seasonal norms for late April—historical averages hover at 8–11°C with low variability due to Baltic Sea moderation and current neutral ENSO conditions. Trader consensus at 100% implied probability for 10°C reflects this finalized data from Wunderground archives, backed by real capital. Realistic challenges include rare post-processing revisions by FMI or station recalibrations, though data stability across sources like timeanddate.com confirms the outcome; resolution awaits Wunderground finalization.

This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 27 Apr '26.

The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.

To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.

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

The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°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
$36,742
End Date
Apr 27, 2026
Market Opened
Apr 25, 2026, 12:09 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 27 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°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 at the Helsinki Vantaa Airport Station in degrees Celsius on 27 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°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.Official observations from Helsinki-Vantaa Airport station, the authoritative source for this market, recorded a maximum temperature of 10°C on April 27, 2026, at approximately 12:50 local time under partly cloudy skies and northwest winds around 6 m/s. This measurement aligns precisely with Finnish Meteorological Institute (FMI) forecasts, which predicted peak warmth near 10°C amid seasonal norms for late April—historical averages hover at 8–11°C with low variability due to Baltic Sea moderation and current neutral ENSO conditions. Trader consensus at 100% implied probability for 10°C reflects this finalized data from Wunderground archives, backed by real capital. Realistic challenges include rare post-processing revisions by FMI or station recalibrations, though data stability across sources like timeanddate.com confirms the outcome; resolution awaits Wunderground finalization.

This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 27 Apr '26.

The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.

To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.

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

The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°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
$36,742
End Date
Apr 27, 2026
Market Opened
Apr 25, 2026, 12:09 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 27 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°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

Beware of external links.

Frequently Asked Questions

"Highest temperature in Helsinki on April 27?" 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 "10°C" at 100%, followed by "3°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 Helsinki on April 27?" has generated $36.7K in total trading volume since the market launched on Apr 25, 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 Helsinki on April 27?," 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 Helsinki on April 27?" is "10°C" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "3°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 Helsinki on April 27?" 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.