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Hull Gauge
Recomputed 5 Nov 2026, 03:30 UTC

Catalina Yachts 30 MkIIvsWesterly Storm 33

Catalina Yachts against Westerly · used asking prices, listed in the UK and the US

At the same age, the Westerly Storm 33 asks 43% more than the Catalina Yachts 30 MkII; on the headline Gauge Values it asks 38% more, which compares the whole fleets rather than boats of the same age. Neither has a published depreciation curve yet, so we can't say which holds its value better.

same age · 6 shared build years · 16 and 9 boats in them · Indicative · in today’s prices · asking, not sold

02

Year by year

Each build year's Gauge Estimate, for the 6 years both have boats in. Pooled across those years (16 and 9 boats), the Westerly Storm 33 asks 43% more than the Catalina Yachts 30 MkII.

Catalina Yachts 30 MkIIYear builtWesterly Storm 33
£21,000 (14)
1991—
—
£19,000 (16)
1990+37%
£26,000 (8)
£17,500 (17)
1989+46%
£25,500 (9)
1988+43%
£25,000 (9)
£17,000 (15)
1987—
—
£16,000 (13)
1986—
—
Gauge Estimate by year built · comparable boats in brackets, built within three years either side · — below eight comparable boats; a year where neither has eight is left out · the gap is the right-hand model against the left
03

What your budget buys

£8k£24k£39k
Catalina Yachts 30 MkII
1991
newest build year whose Gauge Estimate is at or under £22,000 (£21,000, 14 comparable boats)
1
the one boat listed now asks £22,000 or less
Westerly Storm 33
none
no build year’s Gauge Estimate is at or under £22,000
0
the one boat listed now asks more than £22,000

At £22,000, only the Catalina Yachts 30 MkII has a build year within reach.

04

A year of ownership

Each at its Gauge Value, on a South Coast marina berth, 44 engine hours a year (the median of 103 UK-listed sailing boats that report hours). An estimate in pounds from published rates, not a quote.

Catalina Yachts 30 MkIIMeasureWesterly Storm 33
£5,000
Berth
£5,750
£1,400
Maintenance
£1,900
£450
Lift-out and antifoul
£500
£200
Insurance
£250
£250
Fuel
—
£7,050 (better)
Total a year, before depreciation and fuel
£8,400

Each line is the middle of the cited range, to the nearest fifty pounds. Depreciation is a year of age on each model's published curve, at its Gauge Value, and stays out of the totals.

Neither model has a published depreciation curve, so depreciation is withheld on both sides.

Fuel is left out of both totals: for the Westerly Storm 33, fewer than three of its listings give the engine power.

Sources: Lake Yard price list 2026 · BerthFinder · Boatsetter · Velos Insurance; Admiral Yacht Insurance · Boating Magazine, "Calculating Boat Fuel Consumption" · Littlehampton Marina fuel prices

05

Specification

Catalina Yachts 30 MkIIMeasureWesterly Storm 33
9.14 mfrom listings
Length overall
10.06 m
Sail
Type
Sail
“from listings” marks figures read from the listings themselves; unmarked figures are from our model register and not yet checked against a builder’s published source.
06

Questions

Which is cheaper, the Catalina Yachts 30 MkII or the Westerly Storm 33?

At the same age the Catalina Yachts 30 MkII is cheaper: the Westerly Storm 33 asks 43% more than the Catalina Yachts 30 MkII across 6 shared build years. Their Gauge Values, the median asking prices of all the boats we observed whatever their age, are £18,500 and £25,500.

Which holds its value better?

We can't say yet: neither has a published depreciation curve, and we fit one from at least 20 boats across six build years and publish it only when the fit holds. We have 19 Catalina Yachts 30 MkII boats across 9 build years. We have 9 Westerly Storm 33 boats across 6 build years.

Which spends less time on the market?

Boats of the Westerly Storm 33 had been listed a median of 367 days when we last saw them; too few Catalina Yachts 30 MkII boats were seen on two dates to say. That is time listed so far, not time to sell, which we don't measure yet. 50% of the Westerly Storm 33 boats we saw 14 or more days apart cut their asking price; too few Catalina Yachts 30 MkII boats were seen that far apart to say.

How do you compare them like for like?

We compare boats of the same build year. For each of the 6 years both models have boats in, we take the ratio of their median asking prices in today's prices, then pool the years, giving more weight to years with more boats on both sides. The figure is Indicative because the thinner side has 9 boats in those years. The Gauge Values compare the whole fleets instead, so they mix boats of different ages.

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