Sep 4, 2026 · 19 min · 11 segments
**Where Are All the Coho? How to Predict Salmon Timing in Washington Waters** "Where's all the coho?" is the question filling up the Gold community right now, and it's a fair one. If you've been…
Jamie PropstHost
There's a little bit of nuance, but for the most part, it's a pretty rigid three-year life cycle.

And according to NOAA Fisheries, coho typically spend two growing seasons in the ocean before returning to spawn as three-year-olds.

And according to Noah, the kings actually mature anywhere between two and seven years old.

And that's a massive range, right? So while most of them will come back at that three to four year old age, some of them can spend up to six years growing out in the ocean before they head home, which means they're probably going to be big old lunkers and super fun to catch.

And compare that to Coho, where it's basically the same every single time, that three years.

That variability is a big part of why king timing can feel so much harder to predict and why king season can often surprise everybody with what shows up and what doesn't show up.

Coho essentially are on the clock, and fish on a clock are fish you can plan a lot more around, which is the whole reason this episode is even possible.

So let me give you a quick life cycle overview, just so you get a broad understanding of what a coho's life looks like on average.

And of course, this is nature and biology, so there are no hard and fast rules here.

But essentially, this comes from the WDFW's own species page, and all of these resources will be linked below if you want to dig into this stuff a little bit more on your own.

You absolutely can do that, but these guys are going to deposit their eggs in gravel in the fall.

They emerge from that gravel next spring, and they will go to sea in their second spring.

So it's almost an even split, a year and a half in freshwater, a year and a half in saltwater, and it's easy to keep that in your head.

Explains why the coho run three years ago tells you something about what's gonna happen that season when they come back.

This is the one thing that throws people off guard a little bit about these guys.

And for coho specifically, that seawater time is less than a year and they're almost entirely males, which is interesting.

NOAA says that precocious spawning in coho can be as high as 30% in natural and wild populations.

There's a little bit of nuance, but for the most part, it's a pretty rigid three-year life cycle.

And according to NOAA Fisheries, coho typically spend two growing seasons in the ocean before returning to spawn as three-year-olds.

And according to Noah, the kings actually mature anywhere between two and seven years old.

And that's a massive range, right? So while most of them will come back at that three to four year old age, some of them can spend up to six years growing out in the ocean before they head home, which means they're probably going to be big old lunkers and super fun to catch.

And compare that to Coho, where it's basically the same every single time, that three years.

That variability is a big part of why king timing can feel so much harder to predict and why king season can often surprise everybody with what shows up and what doesn't show up.

Coho essentially are on the clock, and fish on a clock are fish you can plan a lot more around, which is the whole reason this episode is even possible.

So let me give you a quick life cycle overview, just so you get a broad understanding of what a coho's life looks like on average.

And of course, this is nature and biology, so there are no hard and fast rules here.

But essentially, this comes from the WDFW's own species page, and all of these resources will be linked below if you want to dig into this stuff a little bit more on your own.

You absolutely can do that, but these guys are going to deposit their eggs in gravel in the fall.

They emerge from that gravel next spring, and they will go to sea in their second spring.

So it's almost an even split, a year and a half in freshwater, a year and a half in saltwater, and it's easy to keep that in your head.

Explains why the coho run three years ago tells you something about what's gonna happen that season when they come back.

This is the one thing that throws people off guard a little bit about these guys.

And for coho specifically, that seawater time is less than a year and they're almost entirely males, which is interesting.

NOAA says that precocious spawning in coho can be as high as 30% in natural and wild populations.
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