Starlink for boats in Australia: Roam, Ocean Mode & the honest verdict

Starlink's own support documentation draws the line clearly: standard Roam coverage includes marinas, inland waterways and coastal waters — but Ocean Mode, an opt-in available only on the Roam Unlimited plan, is what "enables coverage beyond 12 nautical miles." Ocean Mode data is billed per GB on top of the plan.

In practice: if your boating happens inside territorial waters — which covers the overwhelming majority of Australian recreational boating — an ordinary Roam plan works, and the whole maritime pricing tier is money you don't need to spend. If you're crossing Bass Strait, running to the outer reef, or heading bluewater, you're in Ocean Mode or priority-plan territory. That single distinction is the honest starting point, and it's the one most sales pages skip.

Verified August 2026. Coverage rule from Starlink's own Roam service-plan documentation. Plan inclusions change; confirm at starlink.com/au before ordering.

If you take an Australian-registered Starlink outside Australia, read this before you leave. Starlink changed its international policy for new customers on 14 July 2026, and existing customers moved onto it on 17 August 2026. Australia is its own region — unlike the US and Canada, which are grouped, or Europe — so New Zealand, Indonesia, Papua New Guinea and the Pacific all count as international from the moment you arrive.

• Roam Unlimited now includes 30 days outside your registered home country at a time, down from 60 days per trip. The window resets by returning home, or by localising the account to the new country.
• Roam 100GB and Roam 300GB no longer work internationally at all. They are limited to your registered home country. This is the change that catches people out, because it was not a limit before — it was a longer allowance.
• Global Roam is gone. The unadvertised $400/month plan that carried unlimited international land data was withdrawn from new customers on 15 July 2026, and existing subscriptions stopped on 17 August.
• Global Priority is now the only plan with no time limit on international use. It is substantially more expensive, and for a cruising boat that is the real cost of the change.
• A one-off identity check — photo ID plus a live selfie — is now part of activating international use.

None of this affects a boat that stays in Australian waters, and none of it changes the 12-nautical-mile rule below. It matters if you cross to another country and expect the same plan to keep working.

Every Australian domestic commercial vessel carries an operational area category on its certificate — AMSA’s own classification of how far offshore it may legally work. Starlink draws a different line, at 12 nautical miles. Nobody publishes how the two relate, so we’ve mapped them.

The operational-area definitions are AMSA’s. The mapping to Starlink’s coverage is ours — AMSA does not define its areas against the 12nm territorial-sea limit, and D and E boundaries are set state by state. Treat this as a planning guide, not a compliance document.

The category that matters most is C. A vessel certificated to work within 30 nautical miles of shore can legally operate well past the 12nm line where standard Roam coverage stops — so the plan that covers the inner half of its range does not cover the outer half. That is the single most common mismatch on Australian working boats, and it is invisible until you are out there.

It is not a niche problem either. In AMSA’s own fleet survey, operational area C accounted for 32.5% of the domestic commercial fleet — roughly a third of Australia’s working vessels are certificated for waters that cross the boundary.

Sources. Operational area categories A–E per AMSA and NSCV Part B; category C described by AMSA as restricted offshore operations within 30 nautical miles of shore; C restricted areas set under Exemption 40. Fleet proportion by operational area from AMSA’s domestic commercial vessel survey. The 12nm figure is Starlink’s, from its Roam service-plan documentation.

Australia’s domestic commercial fleet runs to around 31,000 active vessels across 61 vessel classes, from kayaks and hire-and-drive tenders through to trawlers and passenger ferries over 45 metres. 58.8% of the active fleet is under 7.5 metres — small boats, working close to home, for whom a Mini on a Roam plan is genuinely the whole answer.

The fleet is not evenly spread, which is why the shore-side pages below matter differently depending on where you are. Queensland holds the largest share of the certificated fleet at 35.3%, followed by New South Wales at 26.7% and Western Australia at 11.2%. Non-passenger vessels are the largest class in every state except South Australia and Tasmania, where fishing vessels lead — a different connectivity problem, further offshore, for longer.

For scale: that fleet works a coastline of 60,000 kilometres taking in 12,000 islands, inside the world’s third-largest exclusive economic zone.

Source: AMSA, May 2021. Fleet distribution by state, class and length from AMSA’s MARS system as reported in its domestic commercial vessel fleet profile; national fleet size and coastline figures from AMSA’s operating environment snapshot. These are the most recent figures AMSA publishes in this form — they are several years old and the fleet has changed since.

Verified August 2026. Roam pricing in AUD per Starlink's June 2026 Australian price change ($85 / $210; Standby now $15 and stationary-only). Maritime figures are Starlink's Global Priority tier in Australian dollars (Canstar, April 2026); add-on data blocks from A$180 per 50GB. Resellers may bundle or vary this — confirm before committing. We take no payment to rank any option.

Underway is the grey zone. Starlink's customer documentation for Roam describes a portable service, and the standard residential-style dishes are known to shut down when they detect sustained motion. Plenty of Australian boaters report a Mini working fine on a slow displacement hull — but it is not the supported configuration. The supported underway path is the Flat High Performance dish, and that's a serious investment in hardware and power draw (roughly twice a standard dish — a real issue on battery and solar boats).

Weather is real. Heavy rain and storm cells cause temporary dropouts on any satellite service. Starlink at sea is excellent; it is not an emergency communications device and shouldn't replace your EPIRB, VHF or sat phone for safety-of-life.

Standby Mode changed in March 2026. It's now $15/month and stationary-only — it disables when the dish detects movement. It remains a good way to park your subscription cheaply between trips, but it is not cut-price underway internet.

The two-month overseas rule. Roam supports international use for up to two months continuously; long cruising passages beyond that mean transferring your service region — or a Global Priority plan, which has no such limit.

The Maritime / Global Priority tier exists for vessels where connectivity is a business input: charter boats keeping guests streaming, commercial fishing fleets, offshore industry, research vessels. Priority data holds its speed under congestion and works mid-ocean and in motion at any vessel speed, and up to two terminals can share a service line on one vessel.

In Australia these plans are sold and supported through resellers — Skymesh (Brisbane-based support, nationwide installer network, cyclone-rated mounting) and AMI Connect with Castor Marine (integration with existing VSAT/4G systems) are the established options. For a working vessel, a reseller relationship means local invoicing, professional installation and a human to call — genuinely worth it at this tier, in a way it isn't for a weekend tinnie.

Where to buy

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Cruising is half on the water and half alongside — and shore-side options vary enormously between an east-coast marina town and a remote western port. We assess every one of these with verified NBN and mobile-tower data:

Queensland reef & islands run: Cairns · Townsville · Mackay (Whitsundays gateway) · Rockhampton / Keppel · Bundaberg (Lady Musgrave) · Brisbane / Moreton Bay

NSW & east coast: Sydney · Coffs Harbour

Southern waters: Hobart · Launceston / Tamar · Adelaide / Gulf St Vincent · Port Augusta · Ceduna

West & north: Perth / Fremantle · Bunbury · Albany · Esperance · Geraldton (Abrolhos) · Karratha / Dampier · Darwin