When is the best time to fish the Kenai River? It turns out, that is a really complicated question! We’ll also mention the Kasilof River in the answer because these two rivers do a beautiful job of complimenting each other.
Some facts and data points:
- The Kasilof River has a run of both hatchery king salmon and wild king salmon (8,000 – 12,000 king salmon annually). Check out the Kasilof River king salmon fish counts for more details.
- The Kasilof River has a really long run of sockeye salmon (500,000 – 1,00,000 sockeye salmon annually. Check out the Kasilof River sockeye salmon fish counts for more details.
- The Kasilof River also gets a nice run of silver salmon and steelhead in the fall.
- The Kenai River has a two runs of King Salmon that we call early-run king salmon and late-run king salmon. The early-run is between 4,000-6,000 king salmon and the late-run is between 15,000 and 30,000 king salmon annually, but has been closer to 15,000 the last few years. Check out the Kenai River king salmon fish counts for more details.
- The Kenai River has a single run of sockeye salmon from July 1 – August 20, and this run is massive! It can be as high as 2.5 million sockeye salmon each summer. Check out the Kenai river sockeye salmon fish counts for more details
- The Kenai River has two runs of silver salmon. The early-run Kenai River silver salmon peaks in mid-August and the late-run Kenai River silver salmon peaks in mid-September. While we don’t have precise numbers on the silver salmon reading about Kenai River silver salmon fish counts is still worthwhile.
- All of these fish migrate up through Kachemak Bay and through Cook Inlet before making their way into the Kenai and Kasilof Rivers as well as other nearby rivers. It’s absolutely incredible how all of these fish have learned to spread out when they arrive in order to maximize the availability of habitat and resources.
The reason why the Kasilof River and Kenai River should be discussed together is because the Kasilof River salmon arrive just a couple weeks earlier than the Kenai River. So if we are willing to fish on whichever river is the best at the time it really creates a lot of opportunity for a great and long fishing season.
With all that in mind lets take a look at each river, and species of fish and we’ll provide the overall dates each river can be fished and when the absolute peak is for each of them.
Kasilof & Kenai River King Salmon Best Fishing Dates
| Available Dates | Peak Dates |
Kenai River Early-Run | 5/15 – 6/30 | 6/3 – 6/16 |
Kenai River Late-Run | 7/1 – 7/31 | 7/11 – 7/31 |
Kasilof River Early-Run | 5/15 – 6/30 | 6/1 – 6/19 |
Kasilof River Late-Run | 7/1 – 7/31 | 7/11 – 7/31 |
Russian, Kasilof & Kenai River Sockeye Salmon Best Fishing Dates
| Available Dates | Peak Dates |
Kenai River Late-Run | 7/1 – 8/20 | 7/15 – 8/16 |
Kasilof River | 6/15 – 8/20 | 6/27 – 8/9 |
Russian River Early-Run | 6/11 – 7/14 | 6/14 – 7/8 |
Russian River Late-Run | 7/15 – 9/8 | 7/28 – 8/24 |
Russian, Kasilof & Kenai River Silver Salmon Best Fishing Dates
| Available Dates | Peak Dates |
Kenai River Early-Run | 8/1 – 8/31 | 8/8 – 8/23 |
Kenai River Late-Run | 9/1 – 10/31 | 9/10 – 9/25 |
Kasilof River | 8/1 – 8/31 | 8/8 – 8/23 |
Russian River | 8/1 – 9/8 | 8/18 – 9/3 |
With an understanding of these dates and peak fishing times we can craft a great plan months in advance. However, each year is different than the last and we are constantly tracking fishing conditions each day and making adjustments to those plans to give you the best chance at catching and landing big fish.
Keeping an eye on the fish counts through the Alaska FishTopia app is a great way to stay engaged with current fishing conditions and to gauge the strength of the runs.