**Wellington, New Zealand—the world’s windiest major city by average annual wind speed—sees its September peak gusts shaped by the Roaring Forties westerlies funneled and accelerated through the narrow Cook Strait, with airport observations at NZWN serving as the resolution source.** As of September 22, 2026, roughly three-quarters of the month has elapsed without reports of extreme events pushing gusts beyond the mid-90s to low-100s km/h range at the airport. Recent high-pressure ridging over the Tasman Sea has suppressed strong southerlies or northwesterlies, keeping daily peaks moderate (typically 50–70 km/h gusts in current forecasts). Spring climatology favors elevated winds, and a strong El Niño background can enhance westerly flow, but no major low-pressure systems or frontal passages capable of airport gusts ≥102 km/h appear imminent in the final week. This leaves the 90–101 km/h bin as the consensus outcome, with only a modest chance of a late-month spike elevating the maximum into the next tier and negligible probability of staying below 89 km/h. Traders are weighting observed data and short-range model consensus over longer-term seasonal signals.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedPeak wind gust in the world's windiest city in September
Peak wind gust in the world's windiest city in September
90 to 101 km/h 64%
102 km/h or above 35%
89 km/h or below <1%
NEW
NEW
Sep 30, 2026
89 km/h or below
1%
90 to 101 km/h
64%
102 km/h or above
36%
90 to 101 km/h 64%
102 km/h or above 35%
89 km/h or below <1%
NEW
NEW
Sep 30, 2026
89 km/h or below
$932 Vol.
1%
90 to 101 km/h
$5,700 Vol.
64%
102 km/h or above
$444 Vol.
36%
This market will resolve to the wind-gust range that contains the maximum wind gust, in km/h, recorded in any routine (METAR) or special (SPECI) observation from Wellington Airport (ICAO: NZWN) between September 1, 2026 12:00 AM ET and September 30, 2026 11:59 PM ET. Wellington, New Zealand is widely recognized as the world's windiest city, and its airport regularly records powerful gusts that make headlines and viral landing videos worldwide.
The resolution source for this market is the gust value in the wind group of NZWN's raw METAR/SPECI observations, encoded in knots (for example, "34020G45KT" denotes a 45-knot gust), as archived by the Iowa Environmental Mesonet (IEM) for station NZWN in network NF__ASOS ("New Zealand ASOS"). Gust speed is converted from knots using 1 kt = 1.852 km/h, rounded half-up to the nearest whole number. Because gusts are reported in whole knots, no observed gust converts to a value on a bracket boundary, so every observation maps to exactly one range.
The month's highest gust can be located via the IEM Data Calendar for NZWN: https://mesonet.agron.iastate.edu/sites/hist.phtml?network=NF__ASOS&year=2026&month=9&mode=monthly&station=NZWN. Each calendar day displays that day's peak gust inline; clicking a day's date opens the daily Summary for NF__ASOS, where the Peak Gust column in the NZWN (Wellington) row shows the day's maximum. Ensure station NZWN is selected, as the NF__ASOS network includes other New Zealand stations. Note that the IEM calendar and summary pages display gusts in mph; resolution is based on the knot value in the underlying raw METAR, which IEM archives alongside each parsed observation and which can be used to independently verify any value.
If any observations are missing or unavailable, this market will resolve to the range containing the highest gust reported during the resolution window. Should the IEM archive be unavailable or discontinued, this market will resolve based on the equivalent raw METAR/SPECI observations for NZWN from another credible archive or the original reporting authority.**Wellington, New Zealand—the world’s windiest major city by average annual wind speed—sees its September peak gusts shaped by the Roaring Forties westerlies funneled and accelerated through the narrow Cook Strait, with airport observations at NZWN serving as the resolution source.**
As of September 22, 2026, roughly three-quarters of the month has elapsed without reports of extreme events pushing gusts beyond the mid-90s to low-100s km/h range at the airport. Recent high-pressure ridging over the Tasman Sea has suppressed strong southerlies or northwesterlies, keeping daily peaks moderate (typically 50–70 km/h gusts in current forecasts).
Spring climatology favors elevated winds, and a strong El Niño background can enhance westerly flow, but no major low-pressure systems or frontal passages capable of airport gusts ≥102 km/h appear imminent in the final week. This leaves the 90–101 km/h bin as the consensus outcome, with only a modest chance of a late-month spike elevating the maximum into the next tier and negligible probability of staying below 89 km/h. Traders are weighting observed data and short-range model consensus over longer-term seasonal signals.
This market will resolve to the wind-gust range that contains the maximum wind gust, in km/h, recorded in any routine (METAR) or special (SPECI) observation from Wellington Airport (ICAO: NZWN) between September 1, 2026 12:00 AM ET and September 30, 2026 11:59 PM ET. Wellington, New Zealand is widely recognized as the world's windiest city, and its airport regularly records powerful gusts that make headlines and viral landing videos worldwide.
The resolution source for this market is the gust value in the wind group of NZWN's raw METAR/SPECI observations, encoded in knots (for example, "34020G45KT" denotes a 45-knot gust), as archived by the Iowa Environmental Mesonet (IEM) for station NZWN in network NF__ASOS ("New Zealand ASOS"). Gust speed is converted from knots using 1 kt = 1.852 km/h, rounded half-up to the nearest whole number. Because gusts are reported in whole knots, no observed gust converts to a value on a bracket boundary, so every observation maps to exactly one range.
The month's highest gust can be located via the IEM Data Calendar for NZWN: https://mesonet.agron.iastate.edu/sites/hist.phtml?network=NF__ASOS&year=2026&month=9&mode=monthly&station=NZWN. Each calendar day displays that day's peak gust inline; clicking a day's date opens the daily Summary for NF__ASOS, where the Peak Gust column in the NZWN (Wellington) row shows the day's maximum. Ensure station NZWN is selected, as the NF__ASOS network includes other New Zealand stations. Note that the IEM calendar and summary pages display gusts in mph; resolution is based on the knot value in the underlying raw METAR, which IEM archives alongside each parsed observation and which can be used to independently verify any value.
If any observations are missing or unavailable, this market will resolve to the range containing the highest gust reported during the resolution window. Should the IEM archive be unavailable or discontinued, this market will resolve based on the equivalent raw METAR/SPECI observations for NZWN from another credible archive or the original reporting authority.
The resolution source for this market is the gust value in the wind group of NZWN's raw METAR/SPECI observations, encoded in knots (for example, "34020G45KT" denotes a 45-knot gust), as archived by the Iowa Environmental Mesonet (IEM) for station NZWN in network NF__ASOS ("New Zealand ASOS"). Gust speed is converted from knots using 1 kt = 1.852 km/h, rounded half-up to the nearest whole number. Because gusts are reported in whole knots, no observed gust converts to a value on a bracket boundary, so every observation maps to exactly one range.
The month's highest gust can be located via the IEM Data Calendar for NZWN: https://mesonet.agron.iastate.edu/sites/hist.phtml?network=NF__ASOS&year=2026&month=9&mode=monthly&station=NZWN. Each calendar day displays that day's peak gust inline; clicking a day's date opens the daily Summary for NF__ASOS, where the Peak Gust column in the NZWN (Wellington) row shows the day's maximum. Ensure station NZWN is selected, as the NF__ASOS network includes other New Zealand stations. Note that the IEM calendar and summary pages display gusts in mph; resolution is based on the knot value in the underlying raw METAR, which IEM archives alongside each parsed observation and which can be used to independently verify any value.
If any observations are missing or unavailable, this market will resolve to the range containing the highest gust reported during the resolution window. Should the IEM archive be unavailable or discontinued, this market will resolve based on the equivalent raw METAR/SPECI observations for NZWN from another credible archive or the original reporting authority.
Market Opened: Aug 31, 2026, 9:46 AM ET
Volume
$7,076End Date
Oct 1, 2026Market Opened
Aug 31, 2026, 9:46 AM ETThis market will resolve to the wind-gust range that contains the maximum wind gust, in km/h, recorded in any routine (METAR) or special (SPECI) observation from Wellington Airport (ICAO: NZWN) between September 1, 2026 12:00 AM ET and September 30, 2026 11:59 PM ET. Wellington, New Zealand is widely recognized as the world's windiest city, and its airport regularly records powerful gusts that make headlines and viral landing videos worldwide.
The resolution source for this market is the gust value in the wind group of NZWN's raw METAR/SPECI observations, encoded in knots (for example, "34020G45KT" denotes a 45-knot gust), as archived by the Iowa Environmental Mesonet (IEM) for station NZWN in network NF__ASOS ("New Zealand ASOS"). Gust speed is converted from knots using 1 kt = 1.852 km/h, rounded half-up to the nearest whole number. Because gusts are reported in whole knots, no observed gust converts to a value on a bracket boundary, so every observation maps to exactly one range.
The month's highest gust can be located via the IEM Data Calendar for NZWN: https://mesonet.agron.iastate.edu/sites/hist.phtml?network=NF__ASOS&year=2026&month=9&mode=monthly&station=NZWN. Each calendar day displays that day's peak gust inline; clicking a day's date opens the daily Summary for NF__ASOS, where the Peak Gust column in the NZWN (Wellington) row shows the day's maximum. Ensure station NZWN is selected, as the NF__ASOS network includes other New Zealand stations. Note that the IEM calendar and summary pages display gusts in mph; resolution is based on the knot value in the underlying raw METAR, which IEM archives alongside each parsed observation and which can be used to independently verify any value.
If any observations are missing or unavailable, this market will resolve to the range containing the highest gust reported during the resolution window. Should the IEM archive be unavailable or discontinued, this market will resolve based on the equivalent raw METAR/SPECI observations for NZWN from another credible archive or the original reporting authority.**Wellington, New Zealand—the world’s windiest major city by average annual wind speed—sees its September peak gusts shaped by the Roaring Forties westerlies funneled and accelerated through the narrow Cook Strait, with airport observations at NZWN serving as the resolution source.**
As of September 22, 2026, roughly three-quarters of the month has elapsed without reports of extreme events pushing gusts beyond the mid-90s to low-100s km/h range at the airport. Recent high-pressure ridging over the Tasman Sea has suppressed strong southerlies or northwesterlies, keeping daily peaks moderate (typically 50–70 km/h gusts in current forecasts).
Spring climatology favors elevated winds, and a strong El Niño background can enhance westerly flow, but no major low-pressure systems or frontal passages capable of airport gusts ≥102 km/h appear imminent in the final week. This leaves the 90–101 km/h bin as the consensus outcome, with only a modest chance of a late-month spike elevating the maximum into the next tier and negligible probability of staying below 89 km/h. Traders are weighting observed data and short-range model consensus over longer-term seasonal signals.
This market will resolve to the wind-gust range that contains the maximum wind gust, in km/h, recorded in any routine (METAR) or special (SPECI) observation from Wellington Airport (ICAO: NZWN) between September 1, 2026 12:00 AM ET and September 30, 2026 11:59 PM ET. Wellington, New Zealand is widely recognized as the world's windiest city, and its airport regularly records powerful gusts that make headlines and viral landing videos worldwide.
The resolution source for this market is the gust value in the wind group of NZWN's raw METAR/SPECI observations, encoded in knots (for example, "34020G45KT" denotes a 45-knot gust), as archived by the Iowa Environmental Mesonet (IEM) for station NZWN in network NF__ASOS ("New Zealand ASOS"). Gust speed is converted from knots using 1 kt = 1.852 km/h, rounded half-up to the nearest whole number. Because gusts are reported in whole knots, no observed gust converts to a value on a bracket boundary, so every observation maps to exactly one range.
The month's highest gust can be located via the IEM Data Calendar for NZWN: https://mesonet.agron.iastate.edu/sites/hist.phtml?network=NF__ASOS&year=2026&month=9&mode=monthly&station=NZWN. Each calendar day displays that day's peak gust inline; clicking a day's date opens the daily Summary for NF__ASOS, where the Peak Gust column in the NZWN (Wellington) row shows the day's maximum. Ensure station NZWN is selected, as the NF__ASOS network includes other New Zealand stations. Note that the IEM calendar and summary pages display gusts in mph; resolution is based on the knot value in the underlying raw METAR, which IEM archives alongside each parsed observation and which can be used to independently verify any value.
If any observations are missing or unavailable, this market will resolve to the range containing the highest gust reported during the resolution window. Should the IEM archive be unavailable or discontinued, this market will resolve based on the equivalent raw METAR/SPECI observations for NZWN from another credible archive or the original reporting authority.
The resolution source for this market is the gust value in the wind group of NZWN's raw METAR/SPECI observations, encoded in knots (for example, "34020G45KT" denotes a 45-knot gust), as archived by the Iowa Environmental Mesonet (IEM) for station NZWN in network NF__ASOS ("New Zealand ASOS"). Gust speed is converted from knots using 1 kt = 1.852 km/h, rounded half-up to the nearest whole number. Because gusts are reported in whole knots, no observed gust converts to a value on a bracket boundary, so every observation maps to exactly one range.
The month's highest gust can be located via the IEM Data Calendar for NZWN: https://mesonet.agron.iastate.edu/sites/hist.phtml?network=NF__ASOS&year=2026&month=9&mode=monthly&station=NZWN. Each calendar day displays that day's peak gust inline; clicking a day's date opens the daily Summary for NF__ASOS, where the Peak Gust column in the NZWN (Wellington) row shows the day's maximum. Ensure station NZWN is selected, as the NF__ASOS network includes other New Zealand stations. Note that the IEM calendar and summary pages display gusts in mph; resolution is based on the knot value in the underlying raw METAR, which IEM archives alongside each parsed observation and which can be used to independently verify any value.
If any observations are missing or unavailable, this market will resolve to the range containing the highest gust reported during the resolution window. Should the IEM archive be unavailable or discontinued, this market will resolve based on the equivalent raw METAR/SPECI observations for NZWN from another credible archive or the original reporting authority.
Volume
$7,076End Date
Oct 1, 2026Market Opened
Aug 31, 2026, 9:46 AM ET**Wellington, New Zealand—the world’s windiest major city by average annual wind speed—sees its September peak gusts shaped by the Roaring Forties westerlies funneled and accelerated through the narrow Cook Strait, with airport observations at NZWN serving as the resolution source.** As of September 22, 2026, roughly three-quarters of the month has elapsed without reports of extreme events pushing gusts beyond the mid-90s to low-100s km/h range at the airport. Recent high-pressure ridging over the Tasman Sea has suppressed strong southerlies or northwesterlies, keeping daily peaks moderate (typically 50–70 km/h gusts in current forecasts). Spring climatology favors elevated winds, and a strong El Niño background can enhance westerly flow, but no major low-pressure systems or frontal passages capable of airport gusts ≥102 km/h appear imminent in the final week. This leaves the 90–101 km/h bin as the consensus outcome, with only a modest chance of a late-month spike elevating the maximum into the next tier and negligible probability of staying below 89 km/h. Traders are weighting observed data and short-range model consensus over longer-term seasonal signals.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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