The Panama Canal Is Capping How Many Ships It Takes a Day. Two Weeks Ago It Said It Would Not
Panama · SHIPPING
Key Facts
- —The cap Advisory A-29-2026, issued 20 August, limits daily transits to 34 vessels for booking dates from 4 September, falling to 32 from 15 September.
- —Where it starts from The canal averaged 34.03 transits a day in July on its own figures, and about 35 through June. The first step largely formalises where it already is; the bite comes on 15 September.
- —The trade-off nobody mentions The same advisory postponed the draft restrictions — the 48.0-foot cut moves from 26 August to 2 September, and the 47.5-foot cut from 3 September to 1 October.
- —The water Cumulative rainfall across the watershed is 34% below the historical average for May to August, and inflows 44% below. Gátun stood at 84.1 feet on 21 August.
- —The reversal On 5 August, announcing further draft cuts, the authority said the adjustment “will not affect the number of daily vessel transits.” That was fifteen days ago.
- —The queue today 36 vessels waiting, with transit times of 8.5 days northbound and 7.7 southbound.
Fewer ships, but deeper ones. The canal has just traded one restriction for another, and only half of that has been reported.
The Panama Canal transits cap is real and it is dated. Advisory A-29-2026, issued on 20 August, holds daily crossings to 34 vessels for booking dates from 4 September and 32 from 15 September. What the coverage has mostly missed is the other half of the same document: in exchange for taking fewer ships, the canal has decided to let them sit deeper.
What the Panama Canal transits cap actually does
Read the two halves together, because the authority clearly intends them to be read that way.
On transits: a maximum of 34 vessels a day for booking dates from 4 September — nine Neopanamax slots and twenty-five Panamax — then 32 from 15 September, as the Panamax allocation drops to twenty-three.
On draft: the restrictions already announced have been pushed back. The cut to 48.0 feet moves from 26 August to 2 September, and the cut to 47.5 feet from 3 September to 1 October. A deeper draft means more cargo per ship.
That is a deliberate swap. Fewer crossings, but each one carrying more. For a waterway whose constraint is water rather than space, moving the same tonnage in fewer lockages is the efficient trade, and it is a more sophisticated response than the headline number suggests.
Be careful with the baseline, though. The canal averaged 34.03 transits a day in July on its own monthly operations summary, and about 35 through June. The first step therefore largely formalises where the canal already is. The real reduction arrives on 15 September.
The water numbers
Cumulative rainfall across the canal watershed has been 34% below the historical average during the current hydrological year, which the authority defines here as May through August. Inflows into the watershed have been 44% below average. Gátun Lake stood at 84.1 feet on 21 August, against a normal December peak a little over 87.
The canal is not a sea-level channel. Every ship is lifted and lowered through locks, and each transit spends fresh water that only rain replaces. Fewer transits is the most direct lever available, and the authority is pulling it before the lakes get low rather than after.
The same lakes supply drinking water to roughly half of Panama’s 4.2 million people, which is the part of this story that does not appear on a freight rate.
For scale, the last severe episode is the comparison that matters. In December 2023 the canal was down to 22 transits a day, with 20 and then 18 announced for early 2024 — levels it never had to implement, because the rain came. At 34 and then 32, this is a long way from that.
Fifteen days, not a season
The reversal is genuine and it is sharper than it first looks. On 5 August, announcing further draft adjustments, the authority stated plainly that “the draft adjustment will not affect the number of daily vessel transits.” It had said the same in June. Fifteen days later it capped transits and delayed the draft cuts instead.
What changed is the forecast rather than the lake. The authority is bracing for an El Niño it expects to develop through the second half of this year and continue into 2027, on top of a rainy season that has already underdelivered. Administrator Ricaurte Vásquez put the reasoning in a sentence: the experience of 2023 and 2024 prepared the canal for what it knows and gave it the discipline to handle what it does not — the canal, he said, does not improvise.
That is the fair reading of a phased cap announced two weeks ahead with the dates published. In 2023 the restrictions arrived after the lakes had already fallen. This time the schedule came first.
What it means for you
The changes shippers will feel first are not in the transit cap at all. A second advisory issued the same day restructures the booking system: auctions are reorganised by market segment, customers are limited to one booking slot per day, the Last-Minute Transit service is suspended, flexibility services are narrowed, new surcharges apply to cancellations within seven days, and in-transit times extend to 48 hours from 4 September.
In practice that means a canal crossing becomes harder to arrange late and more expensive to change. Thirty-six vessels were waiting on 20 August, at 8.5 days northbound and 7.7 southbound, and those are the numbers the cap will lengthen.
For Latin American exporters the exposure is uneven in a way that is easy to miss. Chilean and Peruvian shippers moving fruit and copper to the US east coast and to Europe are canal-dependent; Brazilian and Argentine exporters sailing from the Atlantic side are not. A transit cap does not raise costs evenly across the region.
And if you simply buy imported goods anywhere in the Americas, this is a quiet input into next quarter’s prices. Roughly 5% of world maritime trade and about 40% of US container traffic passes through a waterway that has just told the market it will take fewer ships.
Frequently Asked Questions
How many ships can cross the Panama Canal from September?
Advisory A-29-2026 caps daily transits at 34 vessels for booking dates from 4 September 2026, falling to 32 from 15 September. The canal averaged 34.03 transits a day in July, so the first step largely formalises current operations and the real reduction comes on 15 September.
Why is the Panama Canal cutting transits?
Cumulative rainfall across the canal watershed has been 34% below the historical average from May through August, and inflows 44% below, with the authority bracing for an El Niño expected to continue into 2027. Each transit consumes fresh water that only rain replaces.
Are the draft restrictions still going ahead?
They have been delayed. The same 20 August advisory postponed the cut to 48.0 feet from 26 August to 2 September, and the cut to 47.5 feet from 3 September to 1 October. Fewer ships, but each able to carry more cargo.
Connected Coverage
Sources: Autoridad del Canal de Panamá Advisories A-28-2026 and A-29-2026 and the July 2026 monthly operations summary; ACP Gátun water level indicators; Reuters; MarineLink; Newsroom Panama.
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