Sources:NWS · NDBC · Open-Meteo · Copernicus — high confidence · data 23:14
Sources & confidence
Sources
NWS · NDBC · Open-Meteo · Copernicus
Method
spearo sea-state engine: consensus of up to 6 models + satellite clarity (ZSD) + buoy-bias checks
Freshness
Re-read every hour, per coast
Compiled by the spearo sea-state engine · How it works →
The verdict comes from seven water factors and hard safety gates — not ten tabs. Go or stay.
How we score the water
Our own model
Our own forecast engine — not a third-party widget. It weighs these water factors into one go-or-stay verdict for this coast; the 0–10 dial is that verdict, read out as a number.
01
Swell & wave memory
Height, period and direction of the swell, plus the wake of recent storms — an old storm still stirs the water, and the engine remembers.
02
Wind & gusts
Speed and gusts, hour by hour — wind speed and an onshore push chop the surface and cut visibility.
03
Tide phase
Timing and range of the tide, calibrated per coast — big spring tides pull the verdict toward caution.
04
Water temperature
Sea-surface temperature — sharply cold water vetoes a green verdict.
05
Currents & outflow
Direction and drift of the current — it pushes you, and it drags turbid coastal water across where you dive.
06
Rain runoff & air clarity
Rain muddies the water inshore through land runoff, while fog and haze cut visibility at the surface.
07
Coast shape & exposure
How the coast faces the swell — a sheltered cove keeps the water clean; an exposed, head-on point takes a penalty.
Safety gates
Thunderstorm forecast — an instant red, no exceptions.
An official warning (MeteoAlarm / IPMA) — yellow, or red for the higher ranks.
Missing input data — a would-be green is capped to yellow rather than overstated.
Strong disagreement between forecast models — a green day is pulled back to yellow.
Night hours — where night spearfishing is banned by law the window is forced red; where it is legal (Australia outside NSW, New Zealand, South Africa) it is capped at yellow, never green.
It all folds into a single 0–10 score and one verdict: go or stay.
A forecast, not a guarantee — the sea has the last word.
Where to get in, where to hunt
Entry points with coordinates
Seabed relief — promising ground
This verdict — in your pocket. Open the app for the week's window.
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0 m
Surface
Wind, wave and the swell windows — when to go and the best hours.
spearo.app
NWS no dataupdated 23:14
Offshore marks — solo, off the rocks
Day is over
That is it for today — the day's windows have closed.
Tomorrow, best window 06:00–09:00
Whole week — tap a day. is driving swell right now.
›
Solo risk: carry a float · tell someone your plan and exit time · doubt = don't go. A model-based planner; the call is made on site.
Selected day
Windows, hours and the day's trends.
The day is picked above, in the hero. Here are that day's windows, the hour-by-hour map and the trends. Tap a window to break down the conditions.
Saturday · today2026-10-24
07:32–18:47 · full moon
▲ 01:00▼ 07:00▲ 15:00▼ 22:00 · 0.4 m
Hours (06→20)
06
09
12
15
18
Day's trends
Tide0.07 m
Wave1.36 m
Wind22 km/h
Water27 °C
fish activity: moonset 05:53 · moderate · moon underfoot 11:50 · high · moonrise 17:43 · moderate · moon overhead 00:00 · high
What's missing? Tell us what you'd like to see — new spots, species, data or features. We read everything.
Your best window — with you. Forecast in your pocket.
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−10 m
The water column
Visibility and what drives it — post-storm clearing, river plume, temperature and the thermocline.
What it is
A marine instrument, go / no-go for solo hunting.
spearo.app folds wind, wave, swell period, visibility, tides, water temperature and risk into a single verdict — go to the spot or not. It computes 7 days ahead from open marine models (Open-Meteo, IPMA), with no sign-up and no accounts. Built for solo spearfishing off the rocks, where any mistake costs dearly.
Now live: 3016 spots across 406 stretches of coast — mainland Portugal, Madeira and the Azores.
16th Street Fishing Park & Kayak LaunchNearshore marks
borderline
exposed head-on to the swell today
window
—
Seabed depth of the selected area
≈0.4–4.4 m (bathymetry NOAA CUDEM, 3 m)
16th Street Fishing Park & Kayak Launch gives shore access 1.4 km from Port O'Connor. Texas GLO lists the site as a boat ramp. The pin sits at 28.438 N / 96.417 W on the chart. Expect no more than about 4 m of water.
About 1.6 km from Port O'Connor, Boggy Bayou Nature Park is reached on foot from the shore. Access type in the Texas GLO data: beach. Coordinates of the entry: 28.461 N, 96.412 W. The marked spot lies about 180 m from the waterline. Depths reach about 1.0 m.
King Fisher Park is a shore entry about 0.8 km from Port O'Connor. Texas GLO lists the site as a pier. Coordinates of the entry: 28.454 N, 96.404 W. Maximum depth is around 1.0 m.
You can walk into the water at Little Jetty Park; the town of Port O'Connor is 0.3 km away. Texas GLO lists the site as a jetty. The pin sits at 28.444 N / 96.402 W on the chart. The marked spot lies about 40 m from the waterline. Depths reach about 5 m.
Matagorda Ship Channel jetties in 5 m — the only shallow spearable structure in the area. Sheepshead and flounder; bay water knocks the visibility right down.
A state reef in the Matagorda Island 562 lease block, 24 km out. The 62 m once recorded was a data error: the NOAA high-resolution grid reads 20 m here, so this is a boat trip and not a technical dive. Snapper and amberjack over the structure.
MI-616 Matagorda Island Liberty Ship ReefOffshore marks
dangerous
exposed head-on to the swell today
window
—
Seabed depth of the selected area
≈33–33 m (bathymetry NOAA CUDEM, 10 m)
A Liberty ship hull sunk in the MI-616 reef site in 30-34 m, about 26 nm south-east of the Matagorda Ship Channel jetties. The wreck stands well off the bottom and is the classic deep target out of Port O'Connor; red snapper, amberjack and big mangroves, July-September only.
SOLO is the biggest risk: underwater you can black out from lack of oxygen silently and fatally, with no one around. Solo is never truly «safe». Below are the best weather windows; carry a buoy, tell someone your plan and exit time, and any doubt — don't go.
One morning glance — and you know.
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≈
Surfacing
Cameras, map and reference — to hand as you come up.
Year-round across the façade. AL 12″ (30 cm) and 8/person, MS 14″ (36 cm) and 15, Louisiana neither a size nor a bag limit, TX 15″ (38 cm) and 5/day. Sheepshead is nongame in Texas, so gig, spear and speargun are lawful there.
cobia (ling)
Rachycentron canadum · 3–30 m · ⚠️ closed season/limit
In TEXAS cobia may NOT be taken by spear at all: it is on the game-fish list and 'game fish may be taken only by pole and line'; gig, spear and speargun are for nongame fish only. AL, MS and LA: year-round in state waters, min 36″ (91 cm), 1/person (MS 2), max 2/vessel.
gray (mangrove) snapper
Lutjanus griseus · 5–35 m · legal
The most reliable rig and jetty snapper from Alabama to Texas. Year-round in AL, MS and LA: min 12″ (30 cm), 10/person (in LA inside the 10-snapper aggregate). Texas lists no limit — unlisted species carry no bag or length limit there.
red grouper
Epinephelus morio · 15–50 m · ⚠️ closed season/limit
In Louisiana the rule is depth-keyed: year-round in state waters, but closed Feb 1–Mar 31 seaward of the 20-fathom (120 ft, ~37 m) line. Min 20″ (51 cm) in AL and MS, bag 2/person; in LA inside the 4-grouper aggregate. Texas lists no red grouper limit.
black drum
Pogonias cromis · 0–15 m · ⚠️ closed season/limit
A shallow, dependable jetty and marsh-edge target. Year-round in LA and TX; LA slot 16–27″ (41–69 cm), 5/day with max 1 over 27″; TX 14–30″ (36–76 cm), 5/day with max 1 over 52″. MS lists no limit. Nongame in Texas, so lawful to spear there — unlike its red drum cousin.
hogfish
Lachnolaimus maximus · 10–40 m · legal
This card is LOUISIANA-anchored, not façade-wide: only LA carries an explicit hogfish line — year-round in state waters, min 14″ (36 cm), 5/person/day. No AL or MS hogfish line was found; do not read it as a Gulf-wide allowance. Florida does carry a Gulf line: min 14″ fork length, 5/person/day, year-round — so the sixteen Florida cities on this façade read Florida's rule, not Louisiana's.
lionfish
Pterois volitans / P. miles · 1–60 m · invasive — target
Invasive: no season, size or bag limit. But the basis here is negative space — lionfish is not a listed species in MS Title 22 Part 3, and Texas states plainly there are no limits except as listed. No AL or LA lionfish line was found. Florida's licence exemption DOES apply to the sixteen Florida cities on this façade: no licence is needed when taking lionfish with a pole spear, Hawaiian sling, hand-held net or a lionfish-specific device.
Regulated — check your state
red snapper📋 season by state
Not merely 'typically May–Oct': TEXAS state waters are open ALL YEAR at 4 fish/day, min 15″ (38 cm). LA open from May 1 until further notice, 4/day, 16″. AL and MS set the season annually, 2/person, 16″ (41 cm). Red snapper is nongame in Texas, so spear and speargun are lawful gear. Florida sets its own Gulf state-waters season each year, separate from the federal one: min 16″ (41 cm), 2/person, and the free State Reef Fish Angler designation is required.
flounder📋 season by state
Three DIFFERENT autumn closures inside one façade — there is no single season: AL closed all November, LA Oct 15–Nov 30, TX Nov 1–Dec 14 (bag 0), MS year-round. Min AL 14″ (36 cm), MS 12″ (30 cm), LA none, TX 15″ (38 cm). Flounder is nongame in Texas, so gigging and spearing are the normal legal method there.
greater amberjack📋 season by state
The defining rig and wreck fish of the northern Gulf. Louisiana opens Sep 1 and closes Oct 14. AL/MS follow the federal season; Texas has no state closure. Min 34″ (86 cm), Texas 38″ (97 cm) — and it is nongame there, so fully spearable. Bag 1/person in all four states. Florida runs its own FWC Gulf season: min 34″ fork length, 1/person — check the current year's opening.
gray triggerfish📋 season by state
Texas is the genuine outlier: 20 a day against one a day in AL, MS and LA. Min AL/MS 15″ (38 cm), TX 16″ (41 cm); in LA it sits inside the 20-reef-fish aggregate. Louisiana closed Jan 1–end of February and Jun 1–Jul 31.
gag grouper📋 season by state
The practical spear season on the Louisiana shelf-edge banks is Sep 1–Dec 31 (to 23:59). AL and MS open; Texas has no state closure. Min 24″ (61 cm) in all four states, bag 2/person (in LA inside the 4-grouper aggregate). In Florida the Gulf gag season is set by FWC (in recent years Sep 1–Nov 10), min 24″, 2/person inside the 4-grouper aggregate — check the current year.
Law
✓Saltwater licence (+endorsement) per state: FL $17/$47, AL res $30, MS ~$13/$30, LA res $32, TX licence + saltwater endorsement.
✓Texas: spear only (sheepshead/flounder); gamefish (red drum/seatrout/cobia) pole-and-line only.
✓Red snapper: state-set season. Federal reef waters: spear + allowed outside the stressed area, descending device required.
⛔ 🚫 TEXAS: spear and speargun may take fish only, so every fish on the TPWD game-fish list is pole-and-line: cobia, red drum, spotted seatrout, snook, tarpon, king and Spanish mackerel, the marlins and sailfish. Sheepshead, flounder, red snapper and greater amberjack are and stay spearable.
⛔ 🚫 Goliath/Nassau grouper, Gulf sturgeon, sawfish, sea turtles, mammals and many sharks — take prohibited.
⛔ ⚠️ Texas & Alabama: gamefish (red drum/seatrout) pole-and-line only, NOT by spear. : banned in FL/TX, allowed in federal waters outside the stressed area.
US spearfishing law is state-by-state. License, spearable species, powerhead rules and distances vary; federal sanctuaries (Gray's Reef, the Keys, Flower Garden Banks) ban spearfishing. Always confirm with the state agency and local ordinances.
Safety protocol
Sets: watch the wave trains ≥15 min before entering; Hmax ≈ 2×Hs, the wash can run 50 m past the foam line. A lull >10 min with period >12 s = a big set «overdue», do NOT enter; enter right after a full set passes and re-check at minute 30.
Exit FIRST: find your exit AND a backup before entering. On a rocky/boulder shore a 0.5 m rise in swell can make the exit impossible — getting pinned/unable to climb out is the main killer.
Headland rip: prominent points often have a permanent topographic rip regardless of the model — locate it, enter/exit on the windward side, never swim against it.
Cold: wetsuit per the SST chip; the first shiver = a metabolic surge and a drop in breath-hold → get out at the first steady shiver. Cap the session at 45–60 min below 15 °C.
Solo discipline: buoy up; tell someone the spot and exit time; conservative breath-hold (never push it in cold/murky/surfy water); visibility <3 m — don't enter.
Afternoon wind: on many coasts the wind builds from midday — plan to be out of the water by midday; the chop builds — get out.
UV 11:00–15:00 (UVI ≥6): sunscreen and cover up on the surface interval.
Solo is a fundamental risk (hypoxic blackout with no buddy). Any doubt = No-go.
FAQ — spearfishing in Port O'Connor
Where can I spearfish in Port O'Connor?
Port O'Connor has rock entry points such as Matagorda Ship Channel Jetties, MI-562 Port O'Connor Reef and MI-616 Matagorda Island Liberty Ship Reef. A Matagorda Bay town with limited spearable structure - the ship-channel jetties are the shallow option; offshore reefs are deep. Below you'll find each spot (access, shelter and hazards) and today's forecast.
When is the best season in Port O'Connor?
Apr–Oct; NONGAME fish only by spear (gamefish pole-and-line only), rigs-to-reef.
How cold is the water in Port O'Connor?
Murky nearshore, 22–29 °C; clear water on the offshore reefs/rigs.
Is Port O'Connor good for a beginner?
Advanced/offshore: nongame only; clear water on the rigs-to-reef offshore.
Do I need a licence in Port O'Connor?
Yes — in Port O'Connor almost certainly, but the licence is the STATE's, not a federal one: nearly every coastal state requires its own saltwater fishing licence, and several add a free registration or an extra endorsement on top (Florida's free State Reef Fish Survey for reef fish, Texas's saltwater endorsement, California's Ocean Enhancement Validation). Hawaii asks nothing of residents and charges visitors the NRMFL. What may be speared, and with what gear, is state law too — the price and the details depend on the state, so read the «Law» block below.