Mona Passage
A little above baseline, on eleven ships a day.
Above normal +14% against its 2019–2023 baseline
Reading for — 6 days ago. Figures are a 30-day mean, so one quiet day does not move them.
Two years of daily transits
Month by month
| Month | Transits/day | vs baseline |
|---|---|---|
| October 2026 | 11 | +7% |
| September 2026 | 12 | +13% |
| August 2026 | 11 | +8% |
| July 2026 | 12 | +8% |
| June 2026 | 11 | +2% |
| May 2026 | 12 | +14% |
The 18 months before that
| Month | Transits/day | vs baseline |
|---|---|---|
| April 2026 | 12 | +18% |
| March 2026 | 12 | +15% |
| February 2026 | 10 | −3% |
| January 2026 | 11 | +4% |
| December 2025 | 11 | +1% |
| November 2025 | 12 | +12% |
| October 2025 | 13 | +22% |
| September 2025 | 10 | −7% |
| August 2025 | 10 | −4% |
| July 2025 | 11 | +6% |
| June 2025 | 11 | +3% |
| May 2025 | 12 | +8% |
| April 2025 | 12 | +14% |
| March 2025 | 11 | +6% |
| February 2025 | 10 | −9% |
| January 2025 | 10 | −4% |
| December 2024 | 11 | +3% |
| November 2024 | 11 | +6% |
Record high 13.4/day (November 2025), record low 8.7/day (October 2023), on the 30-day mean since January 2019.
Source
Daily transit counts derived from satellite AIS positions by IMF PortWatch, covering 2841 days from 1 January 2019.
Source: IMF PortWatch, https://portwatch.imf.org. PortWatch is published under IMF terms rather than CC BY 4.0, unlike the rest of the data on this site: the figures here are derived and transformed, and the underlying series is not republished.
A small route, reported plainly
Mona Passage runs between Hispaniola and Puerto Rico. It carries around eleven transits a day. It runs about six percent above its 2019–2023 baseline and is level with where it was a year ago. Its record spans about nine to thirteen.
Six percent sounds like a finding and is not one here: on eleven vessels a day it is less than a single ship. That gap between how a percentage reads and what it represents is the reason this page leads with the count.
Where the percentages stop being useful
A one-vessel change is close to a tenth of this route’s traffic. The board describes it in the same language it applies to Suez, which carries four times as many, and that language is more confident than eleven ships a day can support.
The count in the table above is the reliable figure. The percentage is a comparison device, and on the smaller routes it should be read as one.
The Caribbean approaches
Yucatan Channel is the high-volume entrance to the Gulf of Mexico and currently sits above its baseline; Windward Passage is level, as this one is.