Bass Fishing Season in Washington: Regulations, Limits, and Best Times to Fish
April 12, 2026
Washington may be famous for its salmon and steelhead runs, but the state quietly holds some of the best bass fishing in the Pacific Northwest. With more than 1,000 lakes containing bass statewide and outstanding river fishing opportunities, both smallmouth and largemouth bass are plentiful in Washington waters. Whether you’re working rocky points on the Columbia River or punching mats on a lowland lake east of the Cascades, understanding the rules before you go keeps you legal and on the fish.
This guide covers everything you need to know about bass fishing season in Washington — from species identification and regulations to spawn timing, top spots, and how to get your license.
Pro Tip: Always verify your target water body’s special rules before heading out. Washington’s WDFW regulations include both statewide defaults and water-specific overrides that can differ significantly.
Bass Species Found in Washington
Washington offers freshwater bass fishing in lakes and streams east of the Cascades, as well as in many western lowland lakes. Two primary species make up the bulk of bass fishing opportunities in the state: largemouth bass and smallmouth bass.
Largemouth Bass are the more widely distributed of the two species. Largemouth bass generally inhabit areas of dense cover around fallen trees, brush piles, and thick vegetative cover. With the upper lip extending fully past the eye, largemouth bass average 12–15 inches, and can grow 17–20+ inches in quality populations. Contrary to popular belief, there is little difference in the growth or size of bass between eastern and western Washington.
Smallmouth Bass thrive in clearer, rockier environments. The common name smallmouth bass is appropriate given that their mouths are considerably smaller than those of the largemouth bass — the maxillary bone usually does not extend past the center of the eye. Smallmouth bass average 12–16 inches and can grow 16–24 inches in quality populations. Although coloration varies significantly with water clarity and habitat, smallmouth bass are mottled with dark vertical bars. In less productive, clear waters such as Lake Chelan, these dark vertical bars will be very pronounced, while in more productive waters such as Potholes or Moses Lake, they will appear yellowish brown in color.
A third species — Rock Bass — is also present in some Washington waters, though it is classified as a non-game fish with no size limit or daily limit. Rock bass fall under the “Other Game Fish” category alongside crappie, sunfish, and striped bass, all of which carry no size limit and no daily limit.
Key Insight: Largemouth bass favor weedy, warm, shallow environments while smallmouth bass prefer rocky substrate, clear water, and moderate current. Knowing which species dominates your target water helps you dial in the right presentation.
Bass Fishing Season Dates and Regulations in Washington
The fishing season in Washington is open year-round. You can fish at any time as long as you have a valid license and follow the rules. Bass fishing specifically does not have a hard-closed statewide season — both largemouth and smallmouth bass can be targeted throughout the year in most Washington waters, subject to the statewide species rules and any special rules for individual lakes or rivers.
The current Washington State Recreational Fishing Seasons and Regulations pamphlet is effective July 1, 2025 through June 30, 2026. This is the governing document for all bass fishing regulations and should be your first reference before any trip.
Some individual water bodies carry special rules that may restrict gear, bait, or seasons for bass. For a successful and compliant freshwater fishing experience in Washington State, anglers are encouraged to familiarize themselves with both Statewide Freshwater Rules and Special Rules for their specific location. You can look up water-specific rules through the eRegulations Washington portal or the WDFW fishing regulations page.
Important Note: Every angler should have the Fish Washington® mobile app on their smartphone or other mobile device and check for emergency rule changes issued by WDFW before heading out.
Catch-and-Release Rules and Closed Seasons in Washington
Washington does not impose a blanket statewide closed season for bass, but certain water bodies do have seasonal closures or catch-and-release-only designations. There are seasonal fishing closures in the late fall to early spring on some lakes, so checking the Washington Sport Fishing Rules before fishing any specific water is essential.
Catch-and-release is not universally required for bass, but the statewide size rules effectively mandate releasing many fish. Only largemouth bass less than 12 inches may be retained, except that one over 17 inches may be retained, with a daily limit of 5. This slot-limit structure encourages releasing mid-range fish to protect the most reproductively valuable size class.
For anglers practicing voluntary catch-and-release, bass may be caught, retained, and released alive from a livewell until a daily limit is in possession. This makes tournament-style fishing and livewell use legal under Washington rules, as long as you do not exceed your daily limit at any point.
Bowfishing is legal for non-game fish such as carp, suckers, and pikeminnow, but NOT for game fish like bass, trout, or salmon. Keep this in mind if you fish waters where bowfishing activity is common.
For anglers who also target trout in Washington, note that trout carry their own set of catch-and-release and selective fishery rules that operate independently of bass regulations.
Size Limits and Daily Bag Limits for Bass in Washington
Washington uses a slot-limit approach for bass in lakes, ponds, and reservoirs — a system designed to protect fish in the mid-size range while allowing harvest of smaller and trophy-class fish. Here is a breakdown of the current statewide rules:
| Species | Water Type | Size Rule | Daily Limit |
|---|---|---|---|
| Largemouth Bass | Lakes, ponds, reservoirs | Only fish under 12″ may be kept, except 1 over 17″ allowed | 5 |
| Largemouth Bass | Rivers, streams, beaver ponds | No size restriction | No daily limit |
| Smallmouth Bass | Lakes, ponds, reservoirs | Only 1 over 14″ may be retained | 10 |
| Smallmouth Bass | Rivers, streams, beaver ponds | No size restriction | No daily limit |
For largemouth bass in lakes, ponds, and reservoirs, there is no minimum size, but only fish less than 12 inches may be retained, except that 1 over 17 inches may be retained, with a daily limit of 5. There is no size restriction or daily limit in rivers, streams, and beaver ponds.
For smallmouth bass in lakes, ponds, and reservoirs, there is no minimum size, but only 1 smallmouth bass over 14 inches may be retained, with a daily limit of 10. There is no size restriction or daily limit in rivers, streams, and beaver ponds.
The possession limit for game fish is 2 daily limits in any form. This means you can legally possess up to 10 largemouth or 20 smallmouth bass at any given time when combining fresh and processed fish.
Common Mistake: Many anglers assume river bass rules match lake rules. In Washington, rivers and streams have no size or bag limits for largemouth or smallmouth bass — but you still need a valid fishing license to target them.
If you enjoy fishing in other states as well, you can compare Washington’s rules to those in Virginia or Tennessee, where regulations are structured quite differently.
When Bass Spawn in Washington and How It Affects Fishing
Understanding the bass spawn is one of the most important factors in planning a productive trip to Washington waters. Both largemouth and smallmouth bass use water temperature as their primary spawning trigger, which means timing varies by elevation, geography, and year-to-year weather patterns.
Smallmouth Bass Spawn
As waters approach 55–60°F in May, smallmouth bass become increasingly active as they prepare to spawn. In rivers, large spawning adults are on the move, staging along current seams near shallow gravel flats. Current breaks created at the heads and tails of islands are good bets.
In lakes, smallmouth bass also seek shallow, flat, gravel bottom for spawning, but relate more to structure such as large rocky substrate and docks than to current breaks. Hard baits like crankbaits, jerkbaits, and spinnerbaits, as well as soft baits like grubs on a football head jig and finesse worms rigged drop shot, can be effective. Spawning occurs as temperatures reach 60°F in late May and June.
Largemouth Bass Spawn
Fishing improves throughout the spring as waters warm and fish move onshore, peaking during the spawn. Largemouth bass typically spawn slightly later than smallmouth in Washington, with peak activity occurring from late May into June depending on the water body. Males fan out beds in shallow, protected areas — often near emergent vegetation, submerged logs, or dock pilings — and aggressively guard eggs and fry.
During the spawn, bass are highly visible and highly catchable, but they are also at their most vulnerable. Many Washington anglers practice catch-and-release during this period to protect nesting fish and ensure strong year-classes for future seasons. If you do keep fish during the spawn, stay within your daily limit and handle fish carefully to maximize survival after release.
Pro Tip: Post-spawn bass can be some of the hardest fish to catch all year. After guarding nests, both largemouth and smallmouth retreat to deeper water to recover. Target transitional depth zones — the 8–15 foot range — with slower presentations like drop shots and shaky heads during this brief lull.
Best Times of Year to Fish for Bass in Washington
Washington bass fishing follows a seasonal rhythm tied to water temperature. Here is what to expect across all four seasons:
Spring (March–May) is widely considered the top season for bass fishing in the state. Fishing improves throughout the spring as waters warm and fish move onshore, peaking during the spawn. Pre-spawn bass are aggressive feeders building up energy reserves, and the right lure presented at the right depth can produce multiple fish in a short window. During this transition period, reaction baits such as crankbaits and suspending jerkbaits can be very effective for coaxing lethargic bass to bite.
Summer (June–August) brings warmer water and a slight slowdown in overall activity during midday hours. Summer is a slight lull, though dawn and dusk hours can be very good. As summer progresses and lakes become thermally stratified, smallmouth bass will spend much of the day resting on the bottom below the thermocline in 20 to 30 feet of water. In most lakes, smallmouth will congregate in areas of large, rocky substrate where their favorite food, the signal crawfish, is abundant. Early morning topwater fishing can be explosive during summer, especially on calm, overcast days.
Fall (September–November) is a strong secondary season as cooling water temperatures bring bass back into feeding mode. Catch improves in fall as waters cool, vegetation begins to die back, and prey becomes more available. Bass will begin transitioning towards the shallows as fall sets in. Reaction baits like lipless crankbaits and spinnerbaits shine during this period as bass chase baitfish aggressively ahead of winter.
Winter (December–February) is the most challenging time to target bass in Washington. Winter is the hardest time because fish are offshore and slow moving. In cold water, slow presentation works best. Look for calm water areas and, if possible, areas that are in the sun. Baits like a jig-and-pig, Texas-rigged plastic worms, spinnerbaits, and crankbaits with a fast wobble work well when fished slowly.
| Season | Activity Level | Best Tactics | Best Times of Day |
|---|---|---|---|
| Spring | Very High | Crankbaits, jerkbaits, swimbaits near spawning flats | Mid-morning through afternoon |
| Summer | Moderate | Topwater early/late, drop shot and deep crankbaits midday | Dawn and dusk |
| Fall | High | Lipless crankbaits, spinnerbaits, jigs | Morning through early afternoon |
| Winter | Low | Slow-rolled jigs, finesse worms, drop shot | Warmest part of the day (noon–3pm) |
For gear selection, check out this guide to different types of fishing rods and types of fishing reels to make sure you are matched up correctly for bass fishing techniques.
Best Bass Fishing Lakes and Rivers in Washington
Washington’s abundant collection of lakes, rivers, and reservoirs are well-known for trout and salmon, but those aren’t the only fish species anglers are reeling in around the Evergreen State. In fact, Washington offers some of the best bass fishing opportunities in the country. Below are the top destinations broken down by water type.
Moses Lake and Potholes Reservoir
Located side-by-side in central Washington, Moses Lake and Potholes Reservoir are open year-round and are always near the top of the state’s list. Largemouth bass are prevalent around the sand dunes in Potholes’ upper end, while smallmouth bass frequent rocky bottom areas and around docks. Moses Lake has more dock-oriented and shoreline structure. These two reservoirs are arguably the most productive and consistent bass fisheries in the state.
Lake Washington
Sandwiched between Seattle and the surrounding metro area, Lake Washington is one of the hottest smallmouth bass fisheries in the state. A variety of ramps and fishing piers makes this lake a perfect destination for families and beginner anglers. This 22-mile-long lake holds smallmouth and largemouth bass alongside Chinook salmon, coho, cutthroat trout, yellow perch, and crappie.
Banks Lake
Located in central Washington, Banks Lake is 27 miles long and offers over 90 miles of shoreline with abundant smallmouth bass opportunities. With a variety of camping facilities nearby and a popular state park, Banks Lake is a great spot for a family vacation or weekend getaway.
Lake Roosevelt (Columbia River)
This 130-mile-long reservoir is a fishing factory. Rainbow trout, walleye, smallmouth bass, and kokanee all thrive here. The lake is so massive you’ll find solitude even on busy weekends. Smallmouth bass stack up along the rocky shorelines and points throughout the reservoir, particularly in the lower sections near the dam.
Columbia River
The Columbia River mainstem is one of the premier smallmouth bass rivers in the entire Pacific Northwest. Bass in the Northwest are a somewhat “undiscovered” species in that they span a wide range of areas, though not necessarily always in great numbers. The potential of the fishery is not fully tapped. The mid-Columbia from the Tri-Cities upstream toward the Hanford Reach is particularly productive for big smallmouth, especially in summer and fall.
Lake Whatcom
Located 30 miles south of the Canadian border, Lake Whatcom is a 5,000-acre lake that provides beautiful scenery, clear waters, and over 26 miles of rocky shoreline — ideal habitat for smallmouth bass. It is one of the better western Washington options for anglers who don’t want to make the drive east.
Pro Tip: The advantage of having a few spots to choose from is that each location will host a different water temperature, weather pattern, and structure. Some places naturally produce more bass on a consistent basis, while others only produce fish at one time of year — say during the spawn. Build a rotation of 2–3 lakes so you can follow the seasonal patterns.
If you also plan to chase trout while in Washington, the trout fishing season in Washington guide covers the best rivers and lakes for that species. You might also find it useful to explore different types of fishing techniques to maximize your time on the water.
Bass Fishing License Requirements in Washington
You need a valid Washington fishing license to target bass in any state water. Here is a breakdown of the key requirements and license types.
Who Needs a License
Adult anglers — anyone aged 15 years or older — must have a fishing license, along with any necessary endorsements and Catch Record Cards for specific species. Youth under 16 years old do NOT need a fishing license, however Catch Record Cards are required for specific species and are included with a free youth license. Bass fishing does not require a Catch Record Card — those are reserved for salmon, steelhead, sturgeon, halibut, and Puget Sound Dungeness crab.
License Types for Bass Fishing
A Freshwater License allows you to fish in freshwater areas only, while a Saltwater License covers saltwater areas only. Since bass are a freshwater species in Washington, a standard freshwater license is all you need for most bass fishing situations. A Combination License allows you to fish in freshwater and saltwater and harvest shellfish and seaweed.
The Fish Washington License includes an Annual Combination License covering freshwater, saltwater, shellfish harvest, and seaweed, along with two endorsements — Two-Pole and Puget Sound Dungeness Crab. This is the best value option if you plan to fish multiple species throughout the year.
Recent Fee Changes
As a result of state legislation passed in the 2025 session, hunting and fishing license fees increased July 1, 2025, reflecting the first license fee increase since 2011. Signed by Gov. Bob Ferguson on May 17, the bill increases fees by 38% and includes a senior discount for hunting licenses and a senior and disabled veteran discount for license packages.
The 2025-2026 license year is effective July 1, 2025 through June 30, 2026. Except for short-term licenses, all other licenses are valid for one year from April 1, 2025 to March 31, 2026.
Where to Buy Your License
You can visit WDFW’s online licensing system, contact them by phone at 360-902-2464, or visit one of the hundreds of license dealers around the state. Every angler should also have the Fish Washington® mobile app on their smartphone or other mobile device for quick access to regulations, emergency rule changes, and fishing reports.
Important Note: A 2.9% fee will apply to credit and debit card purchases made through WDFW over the phone or when ordering online through the licensing system. Buying in person at a license dealer avoids this surcharge.
For a broader look at how Washington’s license structure compares to other states, see these guides on fishing license requirements in Florida and fishing license requirements in Texas. You can also explore trout fishing season in Wyoming or trout fishing season in Utah if you are planning multi-state fishing trips.
Washington bass fishing rewards anglers who do their homework. Know your target species, check the special rules for your specific water, pick up your license before you launch, and time your trips around the seasonal patterns outlined above. Whether you’re flipping docks on Moses Lake in May or drop-shotting deep rocky points on Banks Lake in August, the Evergreen State has more than enough bass water to keep you busy all year long.