2015–present · designed by Marc Lombard · built by Jeanneau
The Sun Odyssey 389 is a French production cruiser designed as a comfortable, family-oriented coastal and offshore cruiser with an emphasis on interior volume and ease of handling for short-handed sailing. Marc Lombard's hull prioritizes initial stability and spacious accommodation over outright performance. The boat succeeded the SO 379 in Jeanneau's lineup and was marketed as a step-up cruiser for couples or families moving from coastal to offshore sailing.
This is a general read on the Jeanneau Sun Odyssey 389 class — informed
background, not a verdict on any individual boat. Condition, refit history,
and how a particular hull was sailed and stored matter far more than class
reputation. Use it to know what to look for; for a read on a specific
listing, run a free FairKeel report on that boat.
Generous interior volume for a 38-footer — wide beam carried aft gives a spacious saloon and practical double cabins that genuinely work for a family.
Easy short-handed sail handling: swept-back spreaders allow self-tacking jib on a furler, and the cockpit layout keeps most sail control lines led aft.
Deck-stepped aluminum mast with a 9/10 fractional rig is straightforward to inspect, step, and service compared to keel-stepped alternatives.
Yanmar 3YM30 engine is well-supported globally with widely available parts and a large service network — a meaningful advantage for offshore cruisers.
Known trade-offs
Production-grade deck hardware and through-deck bedding frequently inadequate — water ingress into balsa deck core is a documented class problem requiring proactive inspection and re-bedding.
Moderate upwind performance relative to more modern fin-keel designs; the beamy hull and full ends carry weather helm in stronger breeze, requiring attentive sail trim.
Base electrical specification is underpowered for anything beyond weekending — liveaboards and offshore crews should budget for a full electrical refit including battery capacity, charging, and monitoring.
Interior fit and finish is functional but not premium — plastics, upholstery, and soft goods show age quickly and reflect the boat's price-point positioning in the production cruiser market.
Age-related quirks to expect
Deck-core moisture ingress at hardware penetrationsMedium2015 onward (all years)
Balsa-cored hull sides susceptible to osmotic delamination if fittings or through-hulls not properly beddedMedium2015 onward (all years)
Lewmar hatches and ports prone to early seal failure and UV crazing on acrylic lensesLow2015 onward (all years)
Yanmar 3YM30 diesel at or near service interval limits on early hulls; raw-water impeller and heat exchanger wear commonMedium2015-2018
Standing rigging age — early hulls now 10+ years old; 1x19 wire approaching recommended replacement windowHigh2015-2017
Systems to check before you buy
Deck core and chainplate surroundspriority: offshore, coastal, liveaboard
Jeanneau's sandwich-core deck construction from this era is vulnerable to moisture intrusion at stanchion bases, chainplate throughbolts, and any deck hardware that was not re-bedded by previous owners. Tap-test the side decks and cabin top perimeter; moisture meter readings above 20% warrant core sampling before purchase.
Standing rigging and deck-stepped mastpriority: offshore, coastal
Deck-stepped aluminum mast means the mast base, step fitting, and partner seal are water ingress points into the cabin interior. Wire rigging on early hulls is at or past the 10-year replacement benchmark. Inspect swage terminals for cracking and measure wire diameter for corrosion. Roller-furling foil condition and forestay tension are key.
Keel-to-hull joint and bolt integritypriority: offshore, coastal, liveaboard
The bolt-on lead fin keel is attached through a sump structure. Inspect the keel-hull joint for weeping rust stains, soft gelcoat, or cosmetic fairing that hides rust bleed. Request torque records or evidence of recent keel bolt inspection; this is a safety-critical item on any 10-year-old fin-keel boat.
Engine and raw-water cooling circuitpriority: offshore, coastal, motor
Yanmar 3YM30 engines in this size are reliable but service-sensitive. Check impeller replacement interval compliance, heat exchanger zinc condition, coolant hose age, and transmission fluid. An engine survey or compression test is warranted on any hull with more than 1,000 hours or uncertain service history.
Electrical system and battery bankpriority: liveaboard, offshore, coastal
Production-spec electrical systems from this era are typically underspecified for liveaboard or extended offshore use. Check for DIY wiring additions from previous owners, battery bank age and capacity, alternator output, and shore-power charger condition. AGM or flooded batteries from original commissioning are likely at end of service life.
How it fits your plans
Offshore
Capable for offshore passages in the right hands, but not a purpose-built bluewater boat. The moderate fin keel and high freeboard provide comfort in a seaway; the production-grade rigging and deck hardware need scrutiny before bluewater departure. Suitable for coastal offshore hops and trade-wind passages with proper preparation and refit of aging systems.
Coastal
Well-suited to coastal cruising — the interior volume, shallow-ish draft on the shoal-keel option, and straightforward sail plan make it an accessible family cruiser. This is where the design genuinely excels.
Liveaboard
The interior is spacious for a 38-footer, with a double-cabin layout that works for a couple or small family. AC and electrical capacity need upgrading for full-time live-aboard use. Good headroom and storage are genuine assets.
Weekending
Excellent weekender — easy to handle short-handed, comfortable overnight, and straightforward to rig and derig. The target buyer for this boat.
Racing
Not a racing boat. The beamy, volume-oriented hull and moderate sailplan are cruising priorities. Club-level casual racing only.
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