Settlement stations / MMMX

MX · America/Mexico_City

Polymarket settles Mexico City temperature on MMMX

MMMX is Benito Juarez International, Mexico City. 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 MMMX. 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-mexico-city, lowest-temperature-in-mexico-city

Reporting and delay

Regular reports—Not published on a fixed schedule.
Median delay15 min 21 sFrom the observation time in the report to the public NOAA feed. 27 reports, measured 2026-09-17.
90th percentile19 min 20 sOne report in ten is at least this late. Worth knowing before you trust a quiet hour.
Coordinates19.436, -99.072Local civil time: America/Mexico_City

Questions

Which weather station settles Mexico City temperature contracts?

Polymarket settles Mexico City on MMMX, Benito Juarez International.

What is the resolution source for Polymarket Mexico City 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 MMMX report?

Not published on a fixed schedule.

How long does a MMMX 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 15 min 21 s, with a 90th percentile of 19 min 20 s across 27 reports. This moves with upstream conditions and is not a service level.

MMMX is live on every paid plan. See the plans — from $9.90 a month, cancel from the account portal.

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 Mexico City 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.