Oceanis 31
Beneteau · Jean-Marie Finot · 2008
Updated
The Oceanis 31 is a 9.30 m displacement racing yacht designed by Jean-Marie Finot and built by Beneteau, first launched in 2008. It races in Class C.
Length
9.30 m
30′ 6″
Beam
3.33 m
Draft
1.83 m
Displacement
4.8 t
Sail area
48 m²
On the podium
Where a Oceanis 31 finishes when she goes racing.
On the podium
21%
of 61 starts by 3 boats
Wins
8%
Read from 61 starts by 3 boats between 2019 and 2026, counting races with six boats or more.
Recent regattas
The latest events where a Oceanis 31 was on the start line, named as the organisers publish them.
Round Aeolian Race 2026 - Campionato Italiano Offshore ORC2026
Høstserien2025- Vårserien2025
- Regata dei Cinque Fari2024
- Vårserien2024
Raced one we are missing?
Report a regattaRound the buoys, or offshore
A short windward-leeward and a night at sea ask different things of a boat. Here is how this one does in each.
Round the buoys
—
Not enough data yet: 4 races of 10 NM or less carry a published distance.
Offshore & coastal
—
Not enough data yet: 4 races over 10 NM carry a published distance.
Who she races against
The designs a Oceanis 31 actually lines up with, most often first. The bar shows how those meetings ended.
Also met, too few times for a figure:
Dufour 360 (5 meetings), Oceanis 343 (Berret) (5 meetings), Grand Soleil 37 (Design) (4 meetings), Peterson 25 (4 meetings), Oceanis 40 (4 meetings), J/80 (4 meetings), Bavaria 36 (4 meetings), Grand Surprise (4 meetings), Show 34 (4 meetings), J/92 (4 meetings), Hanse 320 (4 meetings), Bavaria 42 (4 meetings), First 35 (Farr) (3 meetings), Grand Soleil 40 (Paperini) (3 meetings), Dufour 34 (3 meetings), Pogo 10.50 (2 meetings), Comet 45 (2 meetings), J/122 (2 meetings), Farr 45 (2 meetings), Vismara 40 (2 meetings), Italia 10.98 (2 meetings), Sun Fast 3300 (Andrieu) (2 meetings), More 40 (2 meetings), First 40 (2 meetings), Ker 46 (1 meeting), IMX 45 (1 meeting)
Some of the boats it races against
How the Oceanis 31 has fared against each of them, boat against boat on corrected time. Ordered by how often the two meet, not by who wins.
Speed at every angle
The shape of this design's speed, drawn from the measured fleet. Pick a wind and watch it stretch.
Upwind VMG
4.72
40°
Beam reach
7.66
90°
Broad reach
8.39
135°
Downwind VMG
7.06
170°
Speed in knots at 20 knots of true wind. Green marks the angles that pay: the closest useful beat and the deepest run worth sailing.
Where it wins and where it pays
Every boat is judged against its own measurements — length, weight, sail area. The quicker those say it should be, the more it has to deliver just to break even. Going fast is not enough: it has to go faster than its own numbers promised.
There is no obvious weak spot here. It rewards preparation and crew work more than it rewards picking the right day.
Where it gains
Its best ground is on a reach in moderate air, where it does more than its size and sail area promise, and by a margin worth having. It holds that advantage off the wind as well, so the gain is not down to one leg of the course.
Where it pays
It falls short on the run when it blows, giving away time it never gets back. That is a displacement hull working to its designed speed.
Above the line it delivers more than promised and gains on the fleet. Below, it falls short. Move the wind: plenty of boats sit on one side in the light and the other when it blows.
Full width is 0.4 kn either way.
At 10 knots this design makes back more than its rating asks on the beam reach.
How fast is a Oceanis 31
Boat speed in knots, by true wind angle and wind strength.
| Angle | 6 kn | 10 kn | 14 kn | 20 kn |
|---|---|---|---|---|
| Beat VMG | 2.88 | 4.02 | 4.62 | 4.72 |
| 52° | 4.53 | 6.00 | 6.64 | 6.82 |
| 60° | 4.83 | 6.29 | 6.83 | 7.05 |
| 75° | 5.00 | 6.47 | 7.03 | 7.39 |
| 90° | 5.17 | 6.78 | 7.31 | 7.66 |
| 110° | 5.24 | 6.89 | 7.58 | 8.28 |
| 120° | 5.08 | 6.81 | 7.54 | 8.54 |
| 135° | 4.55 | 6.47 | 7.30 | 8.39 |
| 150° | 3.85 | 5.77 | 6.89 | 7.80 |
| Run VMG | 3.33 | 5.00 | 6.11 | 7.06 |
How they are set up
The range each sail spans across the fleet.
Nearly all carry a folding propeller. A bowsprit is standard across the fleet. Crew weight is declared around 370 kg.
Rigging
Oceanis 31 rig and sail dimensions
A Oceanis 31 carries 10.87 m of mainsail hoist on a 3.96 m boom, a forestay 11.68 m above the deck and a 3.92 m bowsprit. Typical figures across the 6 boats measured under the current VPP, with the range each one spans.
Rig
Sails
The spinnaker spreads widest of all — 61 to 74 m² depending on bowsprit and set-up. Before ordering a sail, read the figure on your own measurement record rather than the typical one for the design.