Settlement stations / FACT

ZA · Africa/Johannesburg

Polymarket settles Cape Town temperature on FACT

FACT is Cape Town International, Cape Town. 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
PolymarketRoutine METAR reports published by aviationweather.gov
Source code FACT. Every report not marked SPECI counts, off-hour ones included, read from the T group in tenths of a degree Celsius and rounded half up to a whole degree of the contract. It is the same report stream shown here, so the running high tracks it directly.		Celsius1°C
Range contract		high · low
highest-temperature-in-cape-town, lowest-temperature-in-cape-town

Reporting and delay

Regular reports:00:00 past each hour, UTC — 1 regular report per hour.
Median delay5 min 17 sFrom the observation time in the report to the public NOAA feed. 29 reports, measured 2026-09-17.
90th percentile5 min 45 sOne report in ten is at least this late. Worth knowing before you trust a quiet hour.
Coordinates-33.965, 18.602Local civil time: Africa/Johannesburg

Questions

Which weather station settles Cape Town temperature contracts?

Polymarket settles Cape Town on FACT, Cape Town International.

What is the resolution source for Polymarket Cape Town temperature?

Polymarket names Routine METAR reports published by aviationweather.gov. Contracts settle in Celsius, on 1-degree buckets. Every report not marked SPECI counts, off-hour ones included, read from the T group in tenths of a degree Celsius and rounded half up to a whole degree of the contract. It is the same report stream shown here, so the running high tracks it directly.

When does FACT report?

:00 past each hour, UTC — 1 regular report per hour.

How long does a FACT observation take to become public?

Measured over 26 hours on 2026-09-17, the median delay from the observation time in the report to its arrival on the public NOAA feed was 5 min 17 s, with a 90th percentile of 5 min 45 s across 29 reports. This moves with upstream conditions and is not a service level.

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WeatherTick tracks 76 settlement stations and publishes each day's running high and low already converted into the unit and bucket the contract settles in. Open Cape Town on the board, 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.