Lake Berryessa

Napa County, CA

GOConfidence · Low
Best bite window
The highlighted window has passed. This read is still based on the latest cached weather; use the 7-Day forecast below for the next window.
Main reason
dry conditions across the window

GO on Lake Berryessa — light winds and steady pressure trend for this window. Weather-only read (no on-water history calibrating this yet).

Next forecast window
GO

Fri · Sep 11, 4 AM → 8 AM (America/Los_Angeles)

Full read

The latest cached fishing-weather read for Lake Berryessa in Napa County, CA is GO. Its highlighted window has passed, so use the 7-day forecast below for the next available window. The main factor in its favor was dry conditions across the window. Its cached forecast evidence included wind near 4 mph out of the west, gusting to 11 mph; surface pressure near 987 hPa on a rising trend; 0.00 inches of rain; and air temperature near 95 °F with overcast dominant. Confidence in this cached read is low; it was generated September 10, 2026, 1:00 PM UTC, and reads refresh on a daily cadence. This is a weather-only read built from forecast weather; it does not yet use on-water reports, and confidence is capped until local water data or feedback exists.

UPDATED September 10, 2026, 1:00 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
4mph

W · gust 11

Rain / Weather
0in

Overcast

Temp
95°F

35°C · hum 21%

Pressure
29.15inHg

Rising

7-Day Fishing Forecast

One read per day — the bite call, the window, the weather behind it

  1. Thu · Sep 10
    Window passed
    GO
    Dry conditions across the window
    100° / 75°F
    4 mph · Wgust 16
    0.00 in
    ↓ -3.1 hPa
  2. Fri · Sep 11
    4 AM → 8 AM
    GO
    Dry conditions across the window
    91° / 66°F
    6 mph · Egust 16
    0.00 in
    ↓ -1.5 hPa
  3. Sat · Sep 12
    4 AM → 8 AM
    GO
    Dry conditions across the window
    86° / 54°F
    5 mph · Wgust 19
    0.00 in
    ↑ +4.1 hPa
  4. Sun · Sep 13
    4 AM → 8 AM
    GO
    Dry conditions across the window
    84° / 52°F
    5 mph · NWgust 11
    0.00 in
    ↓ -2.9 hPa
  5. Mon · Sep 14
    4 AM → 8 AM
    GO
    Dry conditions across the window
    93° / 59°F
    4 mph · NWgust 12
    0.00 in
    ↓ -1.3 hPa
  6. Tue · Sep 15
    2 PM → 6 PM
    GO
    Dry conditions across the window
    93° / 55°F
    3 mph · SEgust 4
    0.00 in
    ↑ +3.3 hPa
  7. Wed · Sep 16
    1 PM → 5 PM
    GO
    Dry conditions across the window
    97° / 59°F
    4 mph · Sgust 7
    0.00 in
    ↓ +1.6 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+1.1 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
5 mph · gust 18 · N
Temperature
Warmer
+20.0°F over 72h100–57°F range

Weather-only read. Confidence is capped until local water data or feedback exists.

About Lake Berryessa

Lake Berryessa, in Napa County, CA, is Lake Berryessa is the largest lake in Napa County, and the fifth largest human-made lake in California..

Surface area
20,700 acres
Max depth
275 ft
Elevation
443 ft
Managing agency
Bureau of Reclamation (Mid-Pacific Region, Central California Area Office; operated cooperatively with Solano County Water Agency/Solano Irrigation District)
Dam
Monticello Dam (Putah Creek)

Primary species: Largemouth bass, Smallmouth bass, Spotted bass, Channel catfish, Bullhead catfish, Black crappie, Bluegill, Redear sunfish, Rainbow trout, Brown trout, Brook trout, Chinook salmon, Kokanee salmon, Common carp.

Notable structure: rocky points, steep ridges, docks, coves with flooded/submerged trees, floating vegetation.

Nearby waters

Weather data by Open-Meteo — CC BY 4.0. Fishing Weather derives the fishing read.