Guaymas Sea of Cortez fishing forecast
Guaymas Sea of Cortez is a saltwater fishing spot in Sea of Cortez, Mexico. Anglers here target Yellowfin Tuna, Roosterfish, Wahoo. The most productive months are typically March, April, May, June, July, August, September, October.
Today’s verdict
Ranks #55 of 437 spots FishRadar scored worldwide today
In line with this spot’s 7-day average
Score confidence ±4 points, from 8 live signals
The statistical model disagrees with the physics model here today — treat this score with extra caution.
Current conditions
| Sea surface temp | 32.7 °C |
|---|---|
| Wind | 23 km/h from ESE |
| Wave height | 0.4 m at 4 s |
| Current | 0.08 m/s toward WNW |
| Pressure | 1012 hPa |
| Depth | 5 m |
| Cloud cover | 7% |
| Chlorophyll | 0.21 mg/m³ |
| Salinity | 35.1 PSU |
| Mixed-layer depth | 23 m |
| UV index | 0 |
| Wind sea | 0.1 m at 1 s |
| Ground swell | 0.2 m at 4 s from WNW |
| Current shear (surface vs 50 m) | 0.08 → 0.00 m/s |
The water here is 6.9 °C warmer than the September average of 25.7 °C. Warmer-than-normal water pushes cool-water species deeper and brings warm-water species in earlier than the calendar suggests. The water is mixed to about 67.3 m, so surface temperature carries well down the water column.
Updated 1 h ago.
What the score means at Guaymas Sea of Cortez
Guaymas Sea of Cortez currently scores 90 out of 100 (Good). Water temperature is 32.7 °C. 8 forecast signals are active in this score.
- Water temperature +20.5
- how close the water is to this species mix’s comfort band
- Chlorophyll +12.8
- plankton density — the base of the food chain
- Waves +9.0
- swell energy stirring the water column
- Current +8.3
- moving water concentrates bait
- Wind +6.2
- surface chop, oxygen and bait drift
- Chlorophyll front +5.0
- a plankton edge — classic feeding line
What’s biting now
The model expects today: roosterfish, yellowfin-tuna, wahoo, spotted-bay-bass, pacific-bluefin-tuna, california-corbina, kelp-bass, california-sheephead
Bite windows
Best months for Guaymas Sea of Cortez:
Score history at this spot
30 days tracked at this exact location
Best recent day: 2026-08-17, 96/100
27 day(s) at 70+ in the tracked period
4 points below the same day last week
About this spot
Open coastal saltwater — conditions and safety depend heavily on the live wind, wave, and tide forecast, so check them before you head out.
Approximate bottom depth: 5 m
Access & shore
Fishable from shore · offshore-only
What you can catch
-
Thunnus albacares
-
Nematistius pectoralis
-
Acanthocybium solandri
Best months by species at Guaymas Sea of Cortez
| Yellowfin TunaThunnus albacares | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RoosterfishNematistius pectoralis | ||||||||||||
| WahooAcanthocybium solandri |
Typical months; local seasons and closures apply.
Local regulations
| Species | Bag limit | Min size | Open season |
|---|---|---|---|
| RoosterfishOfficial source | 2/day | — | — |
| Roosterfish ("pez gallo") is limited to 2 per angler per day and is reserved exclusively for sport fishing within 50 nautical miles of shore — sale is prohibited. Widely practised as catch-and-release. | |||
Licensing:
- saltwater-recreational — residents Federal sport-fishing permit (permiso de pesca deportivo-recreativa) required for everyone aboard a vessel fishing in Mexican waters, regardless of age or whether they personally fish. Fishing from shore or a pier does NOT require a permit. Permit terms: daily ~$127 MXN, weekly ~$318 MXN, monthly ~$476 MXN, annual ~$635 MXN. Buy from CONAPESCA online or authorised vendors., non-residents Same federal permit applies to visiting anglers and is sold online by CONAPESCA and by state tourism portals (e.g. Baja California). Charter/panga operators usually arrange permits for clients — confirm before departure. Underwater (spearfishing) requires an individual permit.
FishRadar regulations are summaries for informational purposes only and are not a legal source. Mexican sport-fishing rules are set federally by CONAPESCA (NOM-017-PESC) but daily limits, reserved species and protected natural areas (ANPs, e.g. Cabo Pulmo, Revillagigedo, Banco Chinchorro) carry extra restrictions, and rules change. The overall limit is 10 organisms per angler per day, maximum 5 of one species. Always carry a valid permit when fishing from a vessel and verify current rules with CONAPESCA before fishing.
Check Guaymas Sea of Cortez before you go
Live scores update through the day. Get the full forecast, bite windows, and your own saved spots in the FishRadar app.
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Nearby spots
Explore 10 more fishing spots within 1173 km of Guaymas Sea of Cortez.
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Cabo San Lucas
Mazatlan Pacific Mexico
Ensenada Baja Norte
Puerto Vallarta Banderas Bay
Lake Chapala Mexico
Frequently asked questions
What fish can you catch at Guaymas Sea of Cortez?
Anglers at Guaymas Sea of Cortez target Yellowfin Tuna, Roosterfish and Wahoo.
When is the best time to fish Guaymas Sea of Cortez?
The most productive months at Guaymas Sea of Cortez are typically March, April, May, June, July, August, September, October.
What is the fishing forecast for Guaymas Sea of Cortez right now?
Guaymas Sea of Cortez currently scores 90 out of 100, based on live ocean and weather conditions — see the full breakdown on this page.
Can you fish Guaymas Sea of Cortez from shore?
Yes — Guaymas Sea of Cortez is fishable from shore (offshore-only).
Is the thermocline set up at Guaymas Sea of Cortez right now?
Not strongly right now — the water column is fairly mixed, so fish are less depth-locked.
How deep is the water at Guaymas Sea of Cortez?
The scored point sits over roughly 5 m of water. Depth shapes which species hold here and how the thermocline forms.
Fishing guides for this spot
- How to Catch Yellowfin Tuna: Chasing the Blue-Water BrawlerHow to Catch Wahoo: Chasing the Ocean's Fastest SprinterHow to Read Tides for Fishing
Forecasts, not guarantees — check local rules before you fish.