Wind & swell
Start with the forecast direction, speed, swell period and tropical outlook. Check whether conditions allow the planned route and a safe return.
Marine Conditions & Fishing Charts
Use wind, swell, water temperature, tide and recent fleet reports to make a practical plan.
Wind, water temperature, bait and tides
Check wind and swell forecasts for the intended route, then compare water-temperature imagery, tide predictions and recent fishing reports. Together, these help the captain assess which areas are reachable and where to search for fish.
Water structure
Use recent surface-temperature and color imagery to identify edges, but remember clouds, age, and surface-only readings limit the picture.
Bait & life
Birds, dolphins, flying fish, sonar marks, weed lines and recent fleet observations help confirm what is happening on the water.
Tide & current
Tide predictions provide timing at a reference station. Local current can differ offshore and around structure.
Reading sea-surface temperature
Los Cabos sits at a dynamic meeting place between Pacific and Gulf of California water. A static monthly average hides the gradients that matter on a particular day. Sea-surface temperature can help locate edges and water masses, but it says nothing by itself about bait depth, oxygen, subsurface temperature, or whether fish are feeding.
Compare images from consecutive days, note the observation time and cloud cover, and ask the captain whether the feature still matches reports from the fleet. Small color-map differences are not automatically meaningful.
What marine charts and forecasts show
| Layer | Useful for | Limitations |
|---|---|---|
| Weather observation | Conditions measured at a named place and time; a way to check the forecast against reality. | A complete description of wind or sea state at every offshore bank. |
| Wind & wave forecast | Expected direction, wind speed, wave height and period along the intended route. | Does not determine port status or replace the captain’s assessment of the boat and route. |
| Satellite SST | Surface temperature contrasts, water-mass boundaries and movement between usable images. | A fish locator, bait-depth map or a guarantee that a particular species will be feeding. |
| Ocean color / chlorophyll | Context about water masses and biological conditions when retrievals are valid. | A direct count of baitfish or tuna; cloud cover and coastal retrieval problems can obscure the signal. |
| Nautical chart | Charted depths, hazards and geographic context, using a current appropriate chart. | Does not show current catches; navigation also requires up-to-date notices and local conditions. |
| Tide prediction | Water-level timing and range at the reference station. | The direction and speed of current at an offshore high spot. |
Check observation time, not just the page refresh time. A multiday composite can look cleaner than a daily satellite image because it combines observations from different times. Compare images with similar dates and processing methods. Cloud-covered areas may have no usable temperature reading.
Typical seasonal patterns
| Planning window | Typical signal | How to use it |
|---|---|---|
| Cool-water period | Pacific influence is often stronger | Look for bait concentrations and cooler-water pelagics; striped marlin can be prominent. |
| Spring transition | Patchy warming and changing edges | Keep target plans flexible; nearshore and offshore options can change quickly. |
| Warm-water period | Broader warm surface water | Dorado, tuna and warm-water billfish become central targets, subject to recent reports. |
| Fall transition | Warm water can persist while fronts sharpen | Tournament season overlaps productive potential and eastern Pacific storm risk. |
For target timing, pair the species calendar with current reports and conditions.
Tides, current and moon phase
Reference station
A tide table predicts water level at a named station. Use local observations to assess offshore current at a bank or seamount.
Moving water
Changing current can reposition bait around structure. Which stage helps depends on the location, target, wind, and water clarity.
Local confirmation
Use the captain's electronics and observation to confirm actual current direction and speed on the grounds.
About the moon
New and full moons are associated with larger astronomical tidal ranges; quarter moons with smaller ranges. Use lunar phase as context alongside the actual current, water, bait and weather.
A practical conditions checklist
24–72 hours
Watch the tropical outlook, wind trend, swell, and major water-mass movement.
Night before
Confirm departure port, captain's go/no-go assessment, expected run, and fallback target.
At the dock
Recheck notices and conditions. Forecasts change, so keep the route and target flexible.
On the water
Give current observations more weight than a saved screenshot. Follow bait and bird activity, safe water and the captain's judgment.