Lombok Strait
Level with its baseline, to within a percent.
Normal +7% 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 | 36 | +2% |
| September 2026 | 38 | +9% |
| August 2026 | 35 | +0% |
| July 2026 | 35 | −1% |
| June 2026 | 39 | +12% |
| May 2026 | 38 | +8% |
The 18 months before that
| Month | Transits/day | vs baseline |
|---|---|---|
| April 2026 | 38 | +7% |
| March 2026 | 37 | +6% |
| February 2026 | 36 | +2% |
| January 2026 | 39 | +11% |
| December 2025 | 36 | +3% |
| November 2025 | 37 | +6% |
| October 2025 | 36 | +3% |
| September 2025 | 37 | +5% |
| August 2025 | 34 | −2% |
| July 2025 | 33 | −5% |
| June 2025 | 38 | +7% |
| May 2025 | 36 | +2% |
| April 2025 | 35 | +1% |
| March 2025 | 38 | +7% |
| February 2025 | 34 | −4% |
| January 2025 | 35 | +0% |
| December 2024 | 38 | +7% |
| November 2024 | 36 | +3% |
Record high 40.7/day (December 2023), record low 27.3/day (April 2019), 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.
The deepest of the Indonesian passages
Lombok runs between Bali and Lombok and is the deepest of the routes through the Indonesian archipelago, which makes it the alternative for vessels too large for the shallower Malacca Strait.
It is currently level with its 2019–2023 baseline and slightly below last year.
Why a flat line is informative here
If Malacca were constrained, this is one of the routes that would absorb the overflow — and Malacca is running about a fifth above its own baseline, not below it. Lombok staying flat is consistent with that: nothing is being pushed this way.
The archipelago’s other passages tell related stories. Sunda is up on baseline, Makassar is level, and Ombai is slightly down.
Range
The whole seven-year record spans roughly 27 to 41 transits a day. That is a small absolute range, so month-to-month percentage moves here look larger than the underlying change in vessel numbers.