Arrowhead Marsh

Alameda 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 Arrowhead Marsh — 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 Arrowhead Marsh in Alameda 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 northwest, gusting to 9 mph; surface pressure near 1016 hPa on a steady trend; 0.00 inches of rain; and air temperature near 77 °F with clear dominant. Confidence in this cached read is low; it was generated September 10, 2026, 1:21 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, 1:21 PM UTCBUCKET 2026-09-10ENGINE 0.7.0

Conditions at a glance

Wind
4mph

NW · gust 9

Rain / Weather
0in

Clear

Temp
77°F

25°C · hum 49%

Pressure
30.00inHg

Steady

Tide predictions

NOAAMLLW

Predicted high and low tides. Heights are relative to MLLW.

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
    82° / 61°F
    4 mph · NWgust 17
    0.00 in
    ↓ -0.6 hPa
  2. Fri · Sep 11
    4 AM → 6:10 AM
    GO
    Dry conditions across the window
    70° / 57°F
    4 mph · Wgust 17
    0.00 in
    ↓ -2.3 hPa
  3. Sat · Sep 12
    4 AM → 6:45 AM
    GO
    Dry conditions across the window
    70° / 57°F
    4 mph · SWgust 18
    0.00 in
    ↑ +2.8 hPa
  4. Sun · Sep 13
    4 AM → 7:20 AM
    GO
    Dry conditions across the window
    77° / 54°F
    4 mph · Ngust 12
    0.00 in
    ↓ -2.5 hPa
  5. Mon · Sep 14
    9 AM → 1 PM
    GO
    Dry conditions across the window
    82° / 55°F
    3 mph · SWgust 13
    0.00 in
    → -0.3 hPa
  6. Tue · Sep 15
    4 AM → 8 AM
    GO
    Dry conditions across the window
    81° / 55°F
    6 mph · Sgust 11
    0.00 in
    ↑ +2.9 hPa
  7. Wed · Sep 16
    9 AM → 1 PM
    GO
    Dry conditions across the window
    79° / 55°F
    4 mph · Wgust 11
    0.00 in
    ↑ +1.7 hPa

Last 3 days

Recent context — what just happened

Pressure
Rising
+0.2 hPa over 72h
Rain
Dry stretch
0.00 in totallast 72h
Wind
Calm wind
4 mph · gust 14 · NW
Temperature
Warmer
+17.6°F over 72h99–54°F range

Weather-only read: the call comes from forecast weather alone. NOAA tide predictions never change the call — they only narrow the window shown above to the hours when the tide is moving. Confidence is capped until local water data or feedback exists.

Nearby waters

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