When fall arrives on Cape Cod, fly fishing for striped bass becomes a game of adapting to changing conditions. Cooler water, migrating bait, stronger winds and increasingly aggressive stripers can create some of the most exciting fly-fishing opportunities of the year.

And while having the right rod, reel and flies is important, your fly line may be the most important piece of the system.

For the majority of Cape Cod fall striper situations, an intermediate line is hard to beat. And if you want one line that can handle beaches, flats, estuaries, rips and evening fishing, our choice for the best all-around option is the RIO Premier Striper Intermediate Fly Line.

Why Fall Is Prime Time for Fly Fishing Cape Cod

The fall run changes the way stripers feed. Baitfish become increasingly important as bass prepare for their migration, and Cape Cod offers an incredible variety of places to intercept them.

Stripers can be found along ocean beaches, Nantucket Sound shorelines, flats, tidal creeks, inlets and deeper current seams. Cape Cod's combination of shallow flats, strong tidal currents and diverse forage makes it particularly well suited to fly fishing.

Fall also brings a useful combination of conditions for fly anglers: aggressive fish, abundant bait and cooler water.

The challenge is getting your fly into the feeding zone without going too deep or spending the entire day fighting your fly line.

That's where an intermediate line shines.

Why an Intermediate Line Is So Versatile

A floating line is excellent when stripers are actively feeding on top or when you're sight-fishing extremely shallow water. A fast-sinking line, meanwhile, is invaluable when fish are holding deep.

But there is a huge amount of water between those two extremes.

An intermediate line bridges that gap.

It sinks slowly enough to keep a fly below the surface while allowing you to fish relatively shallow water. It also reduces the tendency of a fly to skate across the surface when wind and waves create chop.

For fall stripers, that's a major advantage.

A clear intermediate line can also provide a more natural presentation than brightly colored blues and greens. Experienced New England striper fishermen frequently turn to intermediate lines because they work across beaches, jetties, flats and estuaries.

The RIO Premier Striper Intermediate: Our Pick for the Best All-Around Line

If you were putting together a Cape Cod fly-fishing setup and could only choose one line for the fall, we'd put the RIO Premier Striper Intermediate Fly Line at the top of the list.

Shop RIO Premier Striper Intermediate at The Mighty Fish

RIO designed the Premier Striper specifically around the demands of striped bass fishing. The intermediate version features a clear intermediate sinking head paired with a luminous running line, giving anglers a combination of stealth, control and visibility.

There are several features that make it particularly well suited to Cape Cod.

Front-Biased Weight

One of the biggest advantages is the line's front-biased weight.

That helps load the rod quickly, particularly when you don't have 50 or 60 feet of line outside the guides.

That's extremely useful on Cape Cod.

A striper suddenly appearing 30 feet away doesn't give you time to make three false casts. You need to pick up the line, load the rod and deliver the fly.

The Premier Striper is designed for exactly that kind of fishing.

Clear Intermediate Head

The clear intermediate head is another major advantage.

It allows the fly to get beneath the surface while minimizing the visual presence of the fly line. On sunny fall days, when stripers can become surprisingly selective in shallow water, that can make a difference.

The slow-sinking presentation is particularly useful when fish are feeding just beneath the surface.

Luminous Running Line

One of the coolest features of the intermediate version is its luminous running line.

That becomes particularly valuable during early-morning, evening and nighttime fishing, when keeping track of your running line can become difficult.

The line essentially gives you a visual reference while you're stripping and shooting line in low light.

SlickCast Coating

RIO also builds the Premier Striper with its SlickCast coating.

The result is a very slick line designed to reduce friction and improve shooting performance. That is especially useful when you're trying to make long casts into a fall wind.

The line also incorporates welded loops at both ends, making leader and backing connections quick and convenient.

Which Size Should You Choose?

RIO offers the Premier Striper Intermediate in 8-, 9- and 10-weight versions.

For most Cape Cod anglers, the 8- or 9-weight will be the sweet spot.

8-Weight

An 8-weight is an excellent choice for anglers concentrating on flats, estuaries and smaller to medium-sized stripers.

It's also a fun setup when conditions are manageable and you're throwing relatively modest-sized flies.

9-Weight

If you want one setup to handle a wider range of Cape Cod conditions, the 9-weight is arguably the best all-around choice.

It gives you additional power for wind, larger flies and bigger stripers without becoming excessively heavy for a full day of casting.

Local Cape Cod fly-fishing recommendations commonly center around 8- to 10-weight rods, with a 9-weight being a particularly useful compromise for wind and larger flies.

The Flies to Pair With It

One of the great things about the RIO Premier Striper Intermediate is that it works with a tremendous variety of fall flies.

A few staples belong in every Cape Cod fly box:

Fall forage can range from small silversides and sand eels to larger peanut bunker, so carrying several fly sizes is important.

The intermediate line gives you the flexibility to fish many of these flies at different depths simply by changing your retrieve.

Let the Retrieve Control the Depth

One of the biggest advantages of an intermediate line is that you can manipulate the depth without changing lines.

Want the fly higher in the water column?

Start stripping immediately.

Want it deeper?

Let it sink before beginning your retrieve.

Want to fish somewhere in between?

Count it down and experiment with your retrieve speed.

That versatility is incredibly valuable during the fall because stripers can move from the surface to several feet down depending on tide, light, bait and current.

When a Floating Line Is Better

Despite our enthusiasm for the RIO Premier Striper Intermediate, there are situations where a floating line is the better choice.

If you're sight-fishing extremely shallow flats with spooky stripers, a floating line can provide a very delicate presentation. Cape Cod flats anglers frequently use floating or clear intermediate lines depending on water depth and conditions.

A floating line is also the obvious choice when fish are aggressively taking flies right on the surface.

But if you only want to carry one line, the intermediate gives you more options.

When You Need a Sinking Line

There will also be days when an intermediate simply doesn't sink fast enough.

If you're fishing deep channels, strong current or actively targeting stripers holding well below the surface, a dedicated sinking line can be a better tool.

RIO's Premier Striper series includes dedicated sinking models designed for those situations.

Think of it this way:

Floating: shallow and surface-oriented fishing.

Intermediate: the versatile middle ground.

Sinking: deeper water and aggressive depth control.

For most shore-based fall fishing, however, the middle ground is where you'll spend a tremendous amount of time.

A Great Cape Cod Fall Fly-Fishing Setup

For a simple, versatile fall setup, we'd build around:

Rod: 9-foot 8- or 9-weight saltwater fly rodReel: Saltwater reel with a strong dragFly line: RIO Premier Striper IntermediateLeader: Approximately 9-12 feet, adjusted for water clarity and fly sizeTippet: Roughly 12-20 lb fluorocarbon depending on flies and fishFlies: Clousers, Deceivers, Surf Candies, sand eels and bunker patterns

The exact leader and tippet should be adjusted according to conditions, fly size and the size of the fish you're targeting.

Why We Pick the RIO Premier Striper Intermediate

There are plenty of excellent saltwater fly lines on the market, but the best all-around Cape Cod fall line needs to do several things well.

It needs to:

Cast easily.

Load quickly.

Handle wind.

Fish below the surface.

Work in shallow water.

Present different fly sizes.

Be useful during low-light conditions.

Hold up to saltwater use.

The RIO Premier Striper Intermediate checks an impressive number of those boxes.

Its front-loaded head makes quick casts easier, its clear intermediate section gets flies beneath the surface, the luminous running line is useful after dark, and the SlickCast coating helps deliver smooth shooting performance.

Most importantly, it isn't a line designed for one very specific fishing situation.

It's a line designed to fish.

And that's exactly what you want when chasing Cape Cod stripers during the fall run.

The Bottom Line

Fall on Cape Cod is one of the best times of year to have a fly rod in your hands. Stripers are feeding heavily, bait is moving, temperatures are dropping and opportunities can develop anywhere from shallow flats to ocean beaches.

For anglers looking for one fly line that can handle the majority of those situations, the RIO Premier Striper Intermediate is our top choice.

It offers the versatility of an intermediate line with the specialized features of a line designed specifically for striped bass.

If you're putting together your Cape Cod fall fly setup, this is the line we'd want on the reel.