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Forecast
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© 2026·AI-powered bite forecast
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United States / Texas / Lavaca Bay

Bite forecast: Lavaca Bay

  • 62.3 sq mi
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 2weather-based forecast
    32/100medium activity

    Clear: 75–97 °F

  2. ThursdaySeptember 3weather-based forecast
    24/100low activity

    Clear: 75–99 °F

  3. TuesdaySeptember 8weather-based forecast
    23/100low activity

    Clear: 77–100 °F

Lavaca Bay (Texas) — one of the area's fishing spots. About 161.4 km² in area. The town of Port Lavaca is nearby. Salt water, not fresh — so this page carries its own marine bite forecast. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

Nearby towns

  • Port Lavaca0.2 mi

Nearby rivers

  • Lynn Bayou3 mi
  • Little Chocolate Bayou6 mi
  • Kentucky Mutt Creek8 mi
  • Cox Creek8 mi
  • Agula Creek9 mi
  • Keller Creek9 mi

Nearby water bodies

  • ReservoirStorm Lake2 mi
  • ReservoirClear Lake Levee3 mi
  • ReservoirMud Lake Number 4 Levee3 mi
  • LakeEvaporation Lake;Coxs Creek Reservoir4 mi
  • LakeSwan Lake5 mi
  • BayChocolate Bay6 mi
  • BayVenado Lakes6 mi
  • LakeOld Town Lake8 mi
  • BayKeller Bay8 mi
  • LakeRedfish Lake9 mi
Loading map…

Bite calendar

Wednesday, September 2

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?

In the fish list, this icon marks species recorded here by GBIF. Unmarked species may still occur in the waterbody.

Red drumStriped bassBlack drumCobiaFlounderRed snapperSheepsheadKing mackerelMahi-mahiSpanish mackerelSpotted seatrout

Black drum

6/10 · Fair

Hourly activity

0:006:0012:0018:0023:00
Bite activity:highmediumlow

The bite is moderate — fish feed in short bursts. Weather is steady, with no sharp swings — fish behave predictably.

Peak bite hours

Best time — 00:00–05:00 (nighttime activity).

Tactics

Look for structure — reefs, flats, channel edges; work them slowly near the bottom.

Lures

In clear water, natural colors work best: soft-plastic jig or live bait.

Gear

It's a hot day — a hat, sunglasses, and plenty of water are a must.

Summary

An average day — best chances during peak windows.

How this forecast is calculated

Why this forecast

The computed water temperature is around 85 °F — warmer than the 61–79 °F comfort range for Black drum: in the heat it drops deeper and feeds less often.

Computed water temperature by month; the green band is the 61–79 °F comfort rangecomfort 61–79 °F85 °F
JFMAMJJASOND

Black drum feeds at night: the peak falls in the dark hours, between sunset and sunrise.

The day: daylight hours and when Black drum feeds0:0012:0024:00

Pressure is dropping 0.03 inHg over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 0.03 inHg change
00:00 · 29.9123:00 · 29.86 inHg

One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.

Feeding windows on the day scale0:0012:0024:00

September is an active season for Black drum here.

JFMAMJJASOND

These are the same values the bite curve above was computed from. How the forecast works

Water

Wave
0.8 ft
Period
2 s

Open-Meteo Marine model, grid cell 4.5 mi from the waterbody. Values are daily means.

2 SepWednesday, September 2
+90°

Clear · feels like +95°

Low / high
+75°…+96°
Precipitation
0.00 in
Wind
11 mph SSE
Cloud cover
0%
Humidity
52%
Pressure
29.95 inHg
00:00+81°—10 mphsoutheast wind, 10 mph48%0%
01:00+80°—9 mphsoutheast wind, 9 mph47%0%
02:00+80°—8 mphsoutheast wind, 8 mph46%0%
03:00+78°—12 mphsoutheast wind, 12 mph60%0%
04:00+76°—11 mphsoutheast wind, 11 mph74%0%
05:00+76°—11 mphsoutheast wind, 11 mph79%0%
06:00+76°—12 mphsoutheast wind, 12 mph80%1%
07:00+75°—11 mphsoutheast wind, 11 mph82%1%
08:00+75°—11 mphsoutheast wind, 11 mph82%0%
09:00+79°—13 mphsoutheast wind, 13 mph75%3%
10:00+82°—11 mphsoutheast wind, 11 mph67%2%
11:00+86°—11 mphsouth wind, 11 mph59%1%
12:00+90°—11 mphsouth wind, 11 mph52%0%
13:00+92°—11 mphsouth wind, 11 mph44%0%
14:00+94°—10 mphsouth wind, 10 mph39%3%
15:00+95°—9 mphsoutheast wind, 9 mph36%18%
16:00+96°—9 mphsoutheast wind, 9 mph35%1%
17:00+96°—10 mphsoutheast wind, 10 mph33%0%
18:00+95°—11 mphsoutheast wind, 11 mph32%0%
19:00+94°—11 mphsoutheast wind, 11 mph32%0%
20:00+89°—9 mphsoutheast wind, 9 mph38%0%
21:00+86°—9 mphsoutheast wind, 9 mph42%0%
22:00+84°—9 mphsoutheast wind, 9 mph45%0%
23:00+82°—10 mphsoutheast wind, 10 mph48%0%
+96°+85°+75°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Wednesday, September 2
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
07:21
Sunset
20:04
Day length
12 h 43 min
Sunshine hours
11 h 34 min
UV index
6
high
Moon
Waning gibbous
Moonrise
23:08
Moonset
12:34

The day is 2 min shorter than yesterday.

Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.

Solunar feeding periods

+13% in the windowWednesday, September 2
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major04:26–06:26Moon overhead
  • Minor12:04–13:04Moonset
  • Major16:53–18:53Moon underfoot
  • Minor22:38–23:38Moonrise

The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.

What are solunar periods?