Settlement stations / EFHK

FI · Europe/Helsinki

Polymarket Helsinki temperature: settles on EFHK

EFHK is Helsinki-Vantaa, Helsinki. Polymarket settles temperature contracts here. Below: the resolution source each venue names, when the station reports, and how long a reading takes to reach the public feed.

How it settles

VenueResolution sourceUnitBucketContracts
PolymarketNOAA station observations published by weather.gov
Source code EFHK. The observation table is the same hourly report stream shown here, so the running high tracks it directly.		Celsius1°Chigh · low
highest-temperature-in-helsinki, lowest-temperature-in-helsinki

Reporting and delay

Regular reports:20 :50:20 and :50 past each hour, UTC — 2 regular reports per hour.
Median delay84sFrom the observation time in the report to the public NOAA feed. 52 reports, measured 2026-09-16.
90th percentile6.3 minOne report in ten is at least this late. Worth knowing before you trust a quiet hour.
Coordinates60.327, 24.957Local civil time: Europe/Helsinki

Questions

Which weather station settles Helsinki temperature contracts?

Polymarket settles Helsinki on EFHK, Helsinki-Vantaa.

What is the resolution source for Polymarket Helsinki temperature?

Polymarket names NOAA station observations published by weather.gov. Contracts settle in Celsius on 1-degree buckets. The observation table is the same hourly report stream shown here, so the running high tracks it directly.

When does EFHK report?

:20 and :50 past each hour, UTC — 2 regular reports per hour.

How long does a EFHK observation take to become public?

Measured over 26 hours on 2026-09-16, the median delay from the observation time in the report to its arrival on the public NOAA feed was 84s, with a 90th percentile of 6.3 min across 52 reports. This moves with upstream conditions and is not a service level.

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WeatherTick tracks 67 settlement stations and publishes each day's running high and low already converted into the unit and bucket the contract settles in. Open the terminal for Helsinki, or see every settlement station. Settlement always follows the resolution source named by the venue; the figures here are computed from the public feed and are not a settlement source.