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Climate & Science·Weather

When will the first hurricane form in the Atlantic in 2026?

icon for When will the first hurricane form in the Atlantic in 2026?
Climate & Science·Weather

When will the first hurricane form in the Atlantic in 2026?

September 21 to September 25, 2026 32%

September 26 to September 30, 2026 32%

No Atlantic hurricane will form in September 2026 23%

September 11 to September 15, 2026 7%

Polymarket
NEW

September 21 to September 25, 2026 32%

September 26 to September 30, 2026 32%

No Atlantic hurricane will form in September 2026 23%

September 11 to September 15, 2026 7%

Polymarket
NEW

September 1 to September 10, 2026

$403 Vol.

5%

September 11 to September 15, 2026

$83 Vol.

7%

September 16 to September 20, 2026

$323 Vol.

7%

September 21 to September 25, 2026

$0 Vol.

32%

September 26 to September 30, 2026

$0 Vol.

32%

No Atlantic hurricane will form in September 2026

$0 Vol.

23%

This market resolves based on when the first Atlantic hurricane forms in 2026, as classified by the U.S. National Hurricane Center (NHC). Each bracket is inclusive of both its start and end dates, evaluated in U.S. Eastern Time (ET). The bracket containing the date of the first qualifying NHC advisory will resolve "Yes", and all other brackets will resolve "No". A tropical cyclone is considered a hurricane when it has maximum sustained winds of 74 mph or greater (Category 1 or higher on the Saffir-Simpson Hurricane Wind Scale). A system is considered to have "formed" as a hurricane at the date and time of the first NHC public advisory that classifies a system in the Atlantic basin as a hurricane. Resolution is based on that first advisory, regardless of any later downward revision or reclassification. The sole determinant of when the hurricane formed is the issuance timestamp of that first classifying NHC advisory (evaluated in U.S. Eastern Time), not the estimated time at which the system's winds first reached 74 mph; for a system that straddles midnight between September 30 and October 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on October 1, 2026. The bracket "No Atlantic hurricane will form in September 2026" will resolve "Yes" if no NHC advisory classifies any Atlantic-basin system as a hurricane at any time from 12:00 AM ET on September 1, 2026 through 11:59 PM ET on September 30, 2026. In the event that the NHC has not published any data by September 30, 2026 11:59 PM ET, or if the NHC becomes unavailable, this market will resolve to "No Atlantic hurricane will form in September 2026". The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/As of early September 2026, a strong El Niño has produced record-low Atlantic activity, with five short-lived tropical storms but zero hurricanes amid elevated wind shear, dry mid-level air, and atmospheric stability that have suppressed intensification. National Hurricane Center outlooks indicate no formation likely in the coming week, pushing trader-implied odds toward the September 21–25 window or no September hurricane at all. These close probabilities reflect uncertainty over whether late-season African easterly waves can overcome hostile conditions before October or if the basin remains below the 64-knot threshold through month-end, consistent with historical quiet El Niño years and current Accumulated Cyclone Energy far below average.

This market resolves based on when the first Atlantic hurricane forms in 2026, as classified by the U.S. National Hurricane Center (NHC). Each bracket is inclusive of both its start and end dates, evaluated in U.S. Eastern Time (ET). The bracket containing the date of the first qualifying NHC advisory will resolve "Yes", and all other brackets will resolve "No".

A tropical cyclone is considered a hurricane when it has maximum sustained winds of 74 mph or greater (Category 1 or higher on the Saffir-Simpson Hurricane Wind Scale). A system is considered to have "formed" as a hurricane at the date and time of the first NHC public advisory that classifies a system in the Atlantic basin as a hurricane. Resolution is based on that first advisory, regardless of any later downward revision or reclassification. The sole determinant of when the hurricane formed is the issuance timestamp of that first classifying NHC advisory (evaluated in U.S. Eastern Time), not the estimated time at which the system's winds first reached 74 mph; for a system that straddles midnight between September 30 and October 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on October 1, 2026.

The bracket "No Atlantic hurricane will form in September 2026" will resolve "Yes" if no NHC advisory classifies any Atlantic-basin system as a hurricane at any time from 12:00 AM ET on September 1, 2026 through 11:59 PM ET on September 30, 2026. In the event that the NHC has not published any data by September 30, 2026 11:59 PM ET, or if the NHC becomes unavailable, this market will resolve to "No Atlantic hurricane will form in September 2026".

The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/This market resolves based on when the first Atlantic hurricane forms in 2026, as classified by the U.S. National Hurricane Center (NHC). Each bracket is inclusive of both its start and end dates, evaluated in U.S. Eastern Time (ET). The bracket containing the date of the first qualifying NHC advisory will resolve "Yes", and all other brackets will resolve "No". A tropical cyclone is considered a hurricane when it has maximum sustained winds of 74 mph or greater (Category 1 or higher on the Saffir-Simpson Hurricane Wind Scale). A system is considered to have "formed" as a hurricane at the date and time of the first NHC public advisory that classifies a system in the Atlantic basin as a hurricane. Resolution is based on that first advisory, regardless of any later downward revision or reclassification. The sole determinant of when the hurricane formed is the issuance timestamp of that first classifying NHC advisory (evaluated in U.S. Eastern Time), not the estimated time at which the system's winds first reached 74 mph; for a system that straddles midnight between September 30 and October 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on October 1, 2026. The bracket "No Atlantic hurricane will form in September 2026" will resolve "Yes" if no NHC advisory classifies any Atlantic-basin system as a hurricane at any time from 12:00 AM ET on September 1, 2026 through 11:59 PM ET on September 30, 2026. In the event that the NHC has not published any data by September 30, 2026 11:59 PM ET, or if the NHC becomes unavailable, this market will resolve to "No Atlantic hurricane will form in September 2026". The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/
Volume
$810
End Date
Oct 1, 2026
Market Opened
Sep 4, 2026, 12:02 PM ET

Resolution Source

https://www.nhc.noaa.gov/

Resolver

0x69c47De9D...
This market resolves based on when the first Atlantic hurricane forms in 2026, as classified by the U.S. National Hurricane Center (NHC). Each bracket is inclusive of both its start and end dates, evaluated in U.S. Eastern Time (ET). The bracket containing the date of the first qualifying NHC advisory will resolve "Yes", and all other brackets will resolve "No". A tropical cyclone is considered a hurricane when it has maximum sustained winds of 74 mph or greater (Category 1 or higher on the Saffir-Simpson Hurricane Wind Scale). A system is considered to have "formed" as a hurricane at the date and time of the first NHC public advisory that classifies a system in the Atlantic basin as a hurricane. Resolution is based on that first advisory, regardless of any later downward revision or reclassification. The sole determinant of when the hurricane formed is the issuance timestamp of that first classifying NHC advisory (evaluated in U.S. Eastern Time), not the estimated time at which the system's winds first reached 74 mph; for a system that straddles midnight between September 30 and October 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on October 1, 2026. The bracket "No Atlantic hurricane will form in September 2026" will resolve "Yes" if no NHC advisory classifies any Atlantic-basin system as a hurricane at any time from 12:00 AM ET on September 1, 2026 through 11:59 PM ET on September 30, 2026. In the event that the NHC has not published any data by September 30, 2026 11:59 PM ET, or if the NHC becomes unavailable, this market will resolve to "No Atlantic hurricane will form in September 2026". The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/As of early September 2026, a strong El Niño has produced record-low Atlantic activity, with five short-lived tropical storms but zero hurricanes amid elevated wind shear, dry mid-level air, and atmospheric stability that have suppressed intensification. National Hurricane Center outlooks indicate no formation likely in the coming week, pushing trader-implied odds toward the September 21–25 window or no September hurricane at all. These close probabilities reflect uncertainty over whether late-season African easterly waves can overcome hostile conditions before October or if the basin remains below the 64-knot threshold through month-end, consistent with historical quiet El Niño years and current Accumulated Cyclone Energy far below average.

This market resolves based on when the first Atlantic hurricane forms in 2026, as classified by the U.S. National Hurricane Center (NHC). Each bracket is inclusive of both its start and end dates, evaluated in U.S. Eastern Time (ET). The bracket containing the date of the first qualifying NHC advisory will resolve "Yes", and all other brackets will resolve "No".

A tropical cyclone is considered a hurricane when it has maximum sustained winds of 74 mph or greater (Category 1 or higher on the Saffir-Simpson Hurricane Wind Scale). A system is considered to have "formed" as a hurricane at the date and time of the first NHC public advisory that classifies a system in the Atlantic basin as a hurricane. Resolution is based on that first advisory, regardless of any later downward revision or reclassification. The sole determinant of when the hurricane formed is the issuance timestamp of that first classifying NHC advisory (evaluated in U.S. Eastern Time), not the estimated time at which the system's winds first reached 74 mph; for a system that straddles midnight between September 30 and October 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on October 1, 2026.

The bracket "No Atlantic hurricane will form in September 2026" will resolve "Yes" if no NHC advisory classifies any Atlantic-basin system as a hurricane at any time from 12:00 AM ET on September 1, 2026 through 11:59 PM ET on September 30, 2026. In the event that the NHC has not published any data by September 30, 2026 11:59 PM ET, or if the NHC becomes unavailable, this market will resolve to "No Atlantic hurricane will form in September 2026".

The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/This market resolves based on when the first Atlantic hurricane forms in 2026, as classified by the U.S. National Hurricane Center (NHC). Each bracket is inclusive of both its start and end dates, evaluated in U.S. Eastern Time (ET). The bracket containing the date of the first qualifying NHC advisory will resolve "Yes", and all other brackets will resolve "No". A tropical cyclone is considered a hurricane when it has maximum sustained winds of 74 mph or greater (Category 1 or higher on the Saffir-Simpson Hurricane Wind Scale). A system is considered to have "formed" as a hurricane at the date and time of the first NHC public advisory that classifies a system in the Atlantic basin as a hurricane. Resolution is based on that first advisory, regardless of any later downward revision or reclassification. The sole determinant of when the hurricane formed is the issuance timestamp of that first classifying NHC advisory (evaluated in U.S. Eastern Time), not the estimated time at which the system's winds first reached 74 mph; for a system that straddles midnight between September 30 and October 1, 2026, the applicable bracket is determined solely by whether that advisory's issuance timestamp falls before or after 12:00 AM ET on October 1, 2026. The bracket "No Atlantic hurricane will form in September 2026" will resolve "Yes" if no NHC advisory classifies any Atlantic-basin system as a hurricane at any time from 12:00 AM ET on September 1, 2026 through 11:59 PM ET on September 30, 2026. In the event that the NHC has not published any data by September 30, 2026 11:59 PM ET, or if the NHC becomes unavailable, this market will resolve to "No Atlantic hurricane will form in September 2026". The resolution source for this market is the U.S. National Hurricane Center (NHC), available here: https://www.nhc.noaa.gov/
Volume
$810
End Date
Oct 1, 2026
Market Opened
Sep 4, 2026, 12:02 PM ET

Resolution Source

https://www.nhc.noaa.gov/

Resolver

0x69c47De9D...

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Frequently Asked Questions

"When will the first hurricane form in the Atlantic in 2026?" is a prediction market on Polymarket with 6 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "September 21 to September 25, 2026" at 32%, followed by "September 26 to September 30, 2026" at 32%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 32¢ implies that the market collectively assigns a 32% 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.

"When will the first hurricane form in the Atlantic in 2026?" is a newly created market on Polymarket, launched on Sep 4, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "When will the first hurricane form in the Atlantic in 2026?," browse the 6 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 "When will the first hurricane form in the Atlantic in 2026?" is "September 21 to September 25, 2026" at 32%, meaning the market assigns a 32% chance to that outcome. The next closest outcome is "September 26 to September 30, 2026" at 32%. 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 "When will the first hurricane form in the Atlantic in 2026?" 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.