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Lake Del Valle Fishing Report

Updated Fri, Oct 23, 2026 from live gauge and weather data

The East Bay's stocked oasis: a canyon lake of planted trout, striped bass surprises and Bay Area crowds handled with grace.

4/5
Good. Solid day ahead.Stable-to-falling pressure and workable wind line things up.
Water temp
~62 F est.
Air / High
58 / 64 F
Wind
W 5 mph

Sources: Open-Meteo, solunar calculated for these coordinates.

Satellite view
Friday
23
October 2026

Today's Fishing Report

Generated this morning from live readings: gauge, weather model, sun and moon. A fresh report is published here every morning.

4/5Good. Solid day ahead.Stable-to-falling pressure and workable wind line things up.

Lake Del Valle is in transition: bait on the move and predators following. Today brings cloud cover, wind W around 5 mph, falling pressure near 1018 hPa and a high of 64. Water sits around 62 F for the season (estimated). With the waxing gibbous, the solunar majors run 9:46 AM-11:46 AM and 10:15 PM-12:15 AM: the windows to build the day around.

The plan, species by species

Largemouth bassExcellent

In spring, pre-spawn bass push shallow as the water climbs through the mid-50s; in fall they feed actively until the water cools into the low 50s, then drop back toward deeper structure.

Smallmouth bassExcellent

Spring pre-spawn and fall: Iowa DNR notes the larger bass come up to shallow structure, where a shallow-running minnow bait or a spinnerbait just under the surface works.

Rainbow troutExcellent

This band overlaps Vermont's 54-66Β°F stream preference: fish feed across riffles, runs and pocket water, and in lakes WDFW says spring and fall bring them near the surface.

CrappieGood

Pre-spawn fish move toward shallow coves, and Iowa DNR points to wading as an effective way to reach them in spring; minnows or small jigs under a float.

Tomorrow: Warmer at 73 F. The solunar majors shift about 50 minutes later.Next report: Sat, Oct 24, 6:30 AMHow this report is made β†’

Before you go

California requires a fishing licence from age 16, from $64.54 for residents. What a California licence costs and where to buy it β†’

Chasing largemouth bass here? Check the size and bag limits with CDFW before you keep anything. The season dates for California, read off the agency, are on the California seasons page.

Water and weather

Live readings.

No live gauge on this water

Conditions here are modeled from weather, season and the nearest stations. Water readings appear when a USGS gauge is available.

4050607080JanMarMayJulSepNovOct, ~62 F now

Right now

Latest readings

Air temp58 F
High / Low64 / 55 F
WindW 5-9 mph
Pressure1017.7 hPa, falling
Sky / Rain100% cloud, 4%
Sunrise / Sunset07:23 / 18:18
MoonWaxing Gibbous, 91%
Water temp (seasonal)~62 F est.

Bite planner

Hour-by-hour bite forecast for today. Tap a bar to see why.

5 AM8 AM11 AM2 PM5 PM8 PMsunrisesunsetPRIMEPRIME

Which day to fish Lake Del Valle this week

Today is the pick of the week on Lake Del Valle, at 4 out of 5.

Best day this week: today, Oct 23 β€” good at 4/5, falling pressure, usually the best window of a week.

Today, Oct 23 β€” Good

Stable-to-falling pressure and workable wind line things up.

Solunar majors
9:46 AM-11:46 AM and 10:15 PM-12:15 AM
Minor period
4:10 AM-5:10 AM
Sun
07:23 to 18:18
Moon
Waxing Gibbous, 91% lit
Sky and wind
Showers, 10 mph
Rain chance
4%

Forecast-based scores, less reliable further out: how the score is built.

Species guide

The species that matter on Lake Del Valle: seasons, structure and how to fish each one. Today's ratings live in the report above.

Largemouth bass illustration

Largemouth bass

Best: the spring pre-spawn and the fall feed

A warm-water sunfish of lakes, reservoirs, ponds and slow river backwaters that holds tight to cover: weeds, logs, rock ledges and docks. In Texas, TPWD surveys rank it "by far" the freshwater fish anglers most want to catch. In spring, pre-spawn bass push shallow as the water climbs through the mid-50s; in fall they feed actively until the water cools into the low 50s, then drop back toward deeper structure.

Smallmouth bass illustration

Smallmouth bass

Best: spring and fall, when bigger fish come shallow

A bronze-brown black bass of clear, cool streams and rocky lakes, with dark vertical bars instead of a side stripe. Michigan DNR says its southeastern coast, from Port Huron to Lake Erie, is known nationally for both the size and the number of its smallmouth. Spring pre-spawn and fall: Iowa DNR notes the larger bass come up to shallow structure, where a shallow-running minnow bait or a spinnerbait just under the surface works.

Rainbow trout illustration

Rainbow trout

Spring and fall in most lakes; rivers fish year-round while the water stays cool

A cold-water trout native to Pacific drainages from Alaska to Baja California, now stocked in most states and fished in rivers, tailwaters and lakes. This band overlaps Vermont's 54-66Β°F stream preference: fish feed across riffles, runs and pocket water, and in lakes WDFW says spring and fall bring them near the surface.

Crappie illustration

Crappie

Best: the spring spawn; summer around docks, brush and the thermocline

Two slab-sided panfish, the white crappie and the black crappie, that gather around submerged timber, brush piles, docks and bridge pilings in lakes, reservoirs and slow river backwaters. Texas Parks and Wildlife counts crappie as the state's most popular panfish. Pre-spawn fish move toward shallow coves, and Iowa DNR points to wading as an effective way to reach them in spring; minnows or small jigs under a float.

When to come: the Lake Del Valle calendar

Activity by species and month, and how the water warms through the year. Tap any cell.

Species activity by month

1 = slow, 5 = peak. Current month highlighted.

J
F
M
A
M
J
J
A
S
O
N
D
Largemouth bass
Smallmouth bass
Rainbow trout
Crappie
SlowPeak

Water temperature through the year

Typical surface temperature for this water type; today is around 62 F (estimated, not a reading).

4050607080JanMarMayJulSepNovOct, ~62 F now

Angler reports

Real reports from real anglers, reviewed before publishing. The water log below tracks each day automatically.

No angler reports yet this weekBe the first: your report helps every angler who checks Lake Del Valle today, and we feature the best catch of the week.

Water log, last days

Auto-logged from live data
Thu, Oct 22

3/5 Fair. Fish the windows. A steady pattern: dawn and dusk carry the day. Rainbow trout led the card at excellent. High of 61 F, wind to 10 mph.

Wed, Oct 21

4/5 Good. Solid day ahead. Stable-to-falling pressure and workable wind line things up. Largemouth bass led the card at excellent. High of 69 F, wind to 12 mph.

Tue, Oct 20

3/5 Fair. Fish the windows. A steady pattern: dawn and dusk carry the day. Rainbow trout led the card at excellent. High of 68 F, wind to 9 mph.

Where roughly, what depth, what bait. Skip anything you want to keep secret.
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Before you go

License

California requires a valid fishing license for adults. Buy online from the state agency; one-day options exist for visitors.

Regulations

California license + park day-use. Trout plants seasonal; striper 18-inch: check park/CDFW postings.

Access

Del Valle regional park launch, rentals, bank access lake-wide.

About this water

750 acres south of Livermore, Alameda County, CA. The East Bay's stocked standby.

Fishing Lake Del Valle: the full guide

The regional-park fishery

Del Valle fills a golden canyon south of Livermore: an East Bay Regional Park lake whose heavy trout plants (fall through spring) and resident stripers built the Bay Area's most dependable public fishery. Two million visitors share the park: the fish keep biting anyway.

The trout season

October-May is the program: weekly plants (the park posts them), PowerBait-and-crawler soakers at the classic banks (the dam, swim-beach points), and trollers pulling grubs at 5-25 ft. Derby weekends spike the stakes: holdovers past 5 pounds reward the season's diligent.

Stripers and the warm months

The lake's landlocked stripers (aqueduct arrivals) take over summer: anchovy soakers at the dam, topwater surprises at dawn, fish to 20-plus pounds on live shiners: while largemouth work the tule edges and catfish plants keep the family docks bending. The two-season identity keeps the lake honest year-round.

Park practicalities

The launch, rentals and bait shop run park-standard (entrance fee, quagga inspection): the 10-mph limit keeps water calm: and East Bay heat makes summer mornings the only serious window. Note the water-body advisories posted (mercury guidance on some species): the park signs it clearly.

Common questions

When does Del Valle stock trout?

Roughly October through May, weekly: the park publishes plant days. Winter mornings after a plant are the Bay Area's easiest limits.

Are there big stripers in Del Valle?

Twenty-pound fish come up every summer: aqueduct immigrants grown local. Live bait at the dam or dawn topwater: the lake's adrenaline counterpoint to trout season.

Is fishing good at Lake Del Valle right now?

Check the daily report at the top of this page: it is regenerated every morning from live data. Today's read: Good. Solid day ahead. Stable-to-falling pressure and workable wind line things up.

Nearby waters

Los Vaqueros Reservoir16 miCalifornia Delta33 miSan Pablo Reservoir37 miPacifica43 miSan Luis Reservoir47 miLake Camanche59 mi

Where this page's numbers come from

Weather and pressure
Open-Meteo forecast model
Queried at 37.5830, -121.7000 in this water's own timezone. A model, not an observation.
Moon and solunar windows
Calculated on this site
Astronomical calculation from these coordinates and the date, not a third-party feed. How much weight it deserves.
The written guide on this page
Pablo Ruiz Quintero
How this page was made. The daily report is computed by our scoring engine from live readings; nobody types it. The written guide was drafted with AI assistance. Unlike our newer pages, it does not yet list the official pages its facts were checked against: that audit is under way, and anything it cannot verify will be taken out. Pablo Ruiz Quintero sets every guideline, the data-verification system and the minimum standards a page must meet to be published, reviews page structure and approves what goes live; the responsibility is his, and the AI carries out the work. We work this way because it is how one person can keep every page current with named sources. Errors are published in the verification log; the full policy is in the editorial policy.

Readings refresh on a 30-minute window. The full method, with every figure and its source, is on how our reports are made. Something wrong here? Tell us and it goes in the log with the date.