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Haida Gwaii Sea Surface Temperature & Chlorophyll Charts

Satellite SST, chlorophyll and depth structure for Haida Gwaii. Find the temperature break and color edge before you burn the fuel.

Haida Gwaii bathymetry and named fishing spots base map

Live SST & chlorophyll for Haida Gwaii

This preview shows depth and structure only. Unlock the live satellite water temperature and color layers, updated throughout the day.

Named spots

SpotTypeDepthFrom nearest port
Daajing Giids (Q.C. City)port–9 nm
Massetport–46 nm
Sandspitport–9 nm
Bar Rocksbank2 fm8 nm
Bonilla Rocksbank2 fm45 nm
Borrowman Shoalsbank7 fm17 nm
Butterworth Rocksbank26 fm43 nm
Cape St Jamesheadland17 fm83 nm
Cumshewa Rocksbank5 fm16 nm
Denham Shoalsbank104 fm23 nm
Dixon Valleycanyon228 fm35 nm
Dogfish Banksbank7 fm21 nm
Dogfish Reefbank9 fm23 nm
Flamingo Rockbank45 fm38 nm
Flatfish Bankbank46 fm37 nm
Freeman Rockbank49 fm33 nm

Nearby buoys

South Moresby
51°F
air 49°F · wind 12 kt · seas 4 ft
2026-10-30 23:00 UTC · NOAA NDBC 46147
West Moresby
52°F
air 49°F · wind 4 kt · seas 3 ft
2026-10-30 23:00 UTC · NOAA NDBC 46208
North Hecate Strait
51°F
air 48°F · wind 6 kt · seas 1 ft
2026-10-30 23:00 UTC · NOAA NDBC 46183
West Dixon Entrance
53°F
air 49°F · wind 6 kt · seas 3 ft
2026-10-30 23:00 UTC · NOAA NDBC 46205
Central Dixon Entrance Buoy
49°F
air 47°F · wind 8 kt · seas 2 ft
2026-10-30 23:00 UTC · NOAA NDBC 46145

Latest NOAA NDBC observations. Satellite and in water readings may differ.

Fishing Haida Gwaii

Haida Gwaii is remote, big-fish water, and the chart is built to help you read it from the famous salmon tide lines to the offshore banks. You fish out of Masset, Sandspit and Daajing Giids and work the legendary ground around Langara Island, Cape St James and Rose Spit, plus the halibut banks of Hecate Strait and Dixon Entrance. Across all of it the productive water sits where upwelling, tide lines and temperature edges concentrate bait against the islands and the structure.

Read the chart as layers that work together. SST breaks mark the seams where cool, upwelled water meets warmer water around the points and out over the banks. Chlorophyll color changes show where green, bait rich water edges against cleaner blue. Depth structure, the banks and the offshore shelf, gathers that life into a smaller area. When a break, a color edge and a piece of structure line up, that overlap is where you start looking.

Chinook salmon are the headline fishery, with Langara Island among the best known grounds anywhere, backed by coho, big halibut on the banks, and lingcod and rockfish on the structure. Albacore show offshore in warm years. The fish follow the bait and the moving water, so the chart is intelligence for reading where the water is setting up, not a promise that fish are on a given edge today.

Treat this as a planning tool and not for navigation. This is remote, exposed water, so check the marine forecast, confirm current regulations and closures with Fisheries and Oceans Canada, and run it with local knowledge.

What you get with ReelTemps

From the water

★★★★★
I've tried every temp map out there and they all feel like they were built ten years ago. I'm not exactly a tech guy, but this one actually makes sense the second you open it. First time using it, I marked a break in about 30 seconds the night before and boated bluefin right on it the next morning.
CR
Captain RobCharter captain · San Francisco, CA
★★★★★
Used to burn half a tank driving around looking for color change or a solid temp break. Now I check ReelTemps before I leave the dock and I know exactly where I'm going. Less time driving around guessing, more time with lines in the water. The weather forecast is always spot on too!
PE
PeteSan Diego, CA
★★★★★
Albacore season used to mean a couple hours of homework the night before and just hoping it held up. Now I do most of my research that morning and pull it up on my phone if things change once we're out there. Makes calling an audible a lot easier.
KE
KevinBodega Bay, CA

Haida Gwaii FAQ

Is there buoy ground truth behind the Haida Gwaii chart?
Yes. Several Canadian buoys, run by Environment and Climate Change Canada and carried in the NOAA NDBC feed, sit in these waters, including Central Dixon Entrance, North Hecate Strait and South Moresby. Their live water temperatures show on the chart, so you can compare the satellite sea surface temperature to real in water readings. Satellite and in water temperatures can still differ.
How do I use the chart around Langara and the points?
Watch where upwelling and tide lines set up temperature and color edges against Langara, Cape St James and Rose Spit. That moving water pins bait against the structure, so overlay an SST break, a color change and the depth, and fish where they agree.
What happens when clouds block the view?
Haida Gwaii is often cloudy, so coverage can be patchy. The composite blends a longer, five day window to fill the gaps, and the Cloud-Free layer gives a modelled read when the sky stays shut. Lean on the freshest clear passes and the structure underneath.
Does the chart cover the halibut banks in Hecate Strait?
Yes. The grid reaches east across the banks of Hecate Strait and Dixon Entrance as well as the west side drop off, so you can read the temperature and color over the bottom structure that holds halibut and bait, not just the salmon tide lines.

Nearby regions

Not for navigation. ReelTemps is a fishing intelligence tool, not a nautical chart. Sea surface temperature data courtesy of NOAA CoastWatch and NASA PO.DAAC. Buoy observations from NOAA NDBC.