← Lake Guide46.06° N · 119.10° W

Washington

Lake Wallula

Lake Wallula is a Columbia River pool of about 26,343 acres in Benton County, Washington; multi-species water with seasonal bass-oriented planning.

Surface
26,343acres
Primary species
Largemouth
§ 01Today on the water · Lake Wallulavia Open-Meteo · 02:30 local
Air temp
82.6°F
Barometric
29.81″
↑rising 24h(+0.16)
Wind
11mph
from WSW
Moon
Waxing Crescent
day 4.0 · 17% lit

Air conditions sampled near the lake center, not measured on the water · refreshed ~15 min

§ 03Next 3 daysvia Open-Meteo · interpretation
  1. 17
    julFri

    Tougher window

    hi 88° · lo 57°

    Pick the calmest hour and stay flexible. Conditions push hard today; bite likely shrinks. Plan around the calmest gap.

    ── strong sw wind · bite likely shrinks

  2. 18
    julSat

    Watch the wind

    hi 90° · lo 60°

    Lean into wind-fed shorelines, all day. Wind drives bait position today; pick the shoreline taking it.

    ── stiff w wind

  3. 19
    julSun

    Watch the wind

    hi 93° · lo 65°

    Lean into wind-fed shorelines, all day. Wind drives bait position today; pick the shoreline taking it.

    ── stiff nw wind

§ 04Field notesWashington

Where it is

Lake Wallula sits in Benton County, Washington, covering about 26,343 acres. Where the largemouth sit changes with the season, not the map.

Seasonal pattern

Spring. Warming water pulls largemouth toward shallow, protected areas where they stage and spawn; the quickest-warming pockets lead.

Summer. Heat pushes fish off the shallows toward depth and shade; work the cooler ends of the day.

Fall. As water cools, forage and bass return toward shallower water; movement is wide, so covering water pays.

Winter. Cold water settles fish deep and slow; patience and a subtle presentation are the more dependable choice.

Key structure

  • Creek and cove mouths that funnel fish and bait
  • Weed edges and the clean lines along them
  • Inside turns where a bank changes angle
  • Submerged wood, brush, and laydown cover

The calendar decides which of these is worth time on a given day.

Forage

Baitfish and panfish drive the forage on Lake Wallula; the lake holds multiple species and largemouth follow the bait when conditions favor them.

Access

Access to Lake Wallula is generally public; check water levels and conditions before launching.

Regulations

Check current state and local regulations before fishing; limits and seasons can change.

§ 05Sources & field guides

Field guides

Data & references

  • Today's conditions — Open-Meteo, refreshed every ~15 min
  • Moon phase — local astronomical calculation, no external API
  • Lake area, depth, structure — Identity, surface area, coordinates and county/state are from the ProjectD canonical waterbody index (snapshot conus-20260518-v1, group gnis:01513411). Maximum depth and regulation links were not available from an acceptable source and are intentionally omitted.
  • Regulations — verify current state and local regulations before fishing

Last revised · Back to Lake Guide