Vancouver Marine ForecastStrait of Georgia
Updated Fri Sep 11, 2026
Great weekend bookends; Saturday afternoon brings steep NW wind chop
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Marine Forecast for Strait of Georgia Sep 11–13, 2026
📋 Great weekend bookends; Saturday afternoon brings steep NW wind chop
Light 4-13 knots ENE-SE winds and tiny 0.3-1.2 feet seas all day make Friday the best day of the period. Calm and comfortable from morning through evening with no real weak points.
Morning is fine with light-to-moderate WNW winds, but by afternoon winds build to 17-19 knots gusting 25 knots with steep 2-2.5 feet short-period NW wind-wave chop. Best to finish up by early afternoon and avoid the evening buildup.
Sunday offers good conditions with 9-15 knots ESE-SE winds and modest 1.2-1.6 feet E/ESE seas at 2-second periods. Morning through mid-afternoon is the most favorable window.
Friday and Sunday offer light winds and small, well-organized seas ideal for boating, while Saturday sees building WNW winds through the afternoon that stack up a short, steep 2-second wind-wave on top of the underlying NW swell. Overall confidence is high (95%) across all three days, with wind speed being the main variable to watch on Saturday.
Recent days at Strait of Georgia
Today’s Water at Strait of Georgia
Sea surface temperature and chlorophyll around Strait of Georgia, imaged fresh every morning. Water at the star is 61.8°F today, and chlorophyll of 7.51 mg/m³ reads as nutrient-rich green water at the spot.
Imagery: Sep 10, 2026 · rebuilt every morning
These charts show you the breaks. DeepCast reads them. A zone-by-zone AI fishing report for these exact waters — temperature edges, color changes, and structure, analyzed together — for $4.99.
Get the AI fishing reportSST and chlorophyll from the SeaLegs AI DeepCast satellite pipeline. Charts are a planning aid — always check the official marine forecast before making the run.
About the Strait of Georgia
This forecast covers the open Strait of Georgia — the water between Vancouver and Nanaimo, roughly 30 km from either shore. That placement is deliberate: it is the crossing itself, not the shelter of Burrard Inlet or Departure Bay, that decides whether a day on the water works.
It updates every morning from the latest marine model data, and each day gets an honest GO, CAUTION, or NO-GO call — the same AI rating used in the SeaLegs AI app.
Reading the Strait of Georgia
The strait is sheltered from Pacific swell by Vancouver Island, so the sea you meet here is almost entirely locally generated wind chop rather than long-period swell arriving from offshore. That changes how you read a forecast: wave height alone understates it. A 20-knot northwesterly blowing the length of the strait builds a short, steep, closely-spaced sea that is far more punishing than the same wave height would be offshore.
Two local patterns matter. Summer afternoons commonly bring a northwesterly that fills in and builds through the day, so a calm morning crossing is not a promise about the return leg — plan both. And through the cooler months, outflow winds funnelling down the inlets from the interior can arrive strong and cold with little warning. Tidal streams run hard around the Gulf Islands passes, and wind against tide there stands the sea up fast.
This page is a planning aid, not a substitute for Environment Canada's marine forecasts and warnings — always check those before you leave the dock.
Strait of Georgia forecast FAQ
How is the sea at Strait of Georgia today?
As of Sep 11, 2026, the SeaLegs AI verdict for Strait of Georgia is GO. Friday is the pick of the weekend with light ENE-to-SE winds running just 4-13 knots all day and gusts staying under 17 knots. Seas stay tiny at 0.3-1.2 feet with a short 1-2 second period, giving calm, comfortable conditions for recreational vessels from sunrise to sunset. Visibility is excellent and there's no meaningful deterioration at any point in the day - a great day to be on the water.
Does this forecast cover Nanaimo as well as Vancouver?
Yes. The forecast point sits mid-strait, roughly 32 km from Vancouver and 29 km from Nanaimo, so it describes the open water of the crossing that both cities share rather than either harbour. If you're leaving from Departure Bay or Burrard Inlet, expect conditions inshore to be milder than what's shown here.
Why is the Strait of Georgia rougher than the wave height suggests?
Because the strait is sheltered from Pacific swell by Vancouver Island, nearly all of its sea is locally generated wind chop. Wind waves are short and closely spaced, so a 1.5 m sea in the strait is a considerably harder ride than 1.5 m of long-period ocean swell. Read the wind and the wave period together, not the height on its own.
When is the wind strongest in the Strait of Georgia?
In summer the common pattern is a northwesterly that fills in and strengthens through the afternoon, which is why mornings are often the calmer half of the day. In the cooler months, outflow winds funnelling down the coastal inlets from the interior can arrive strong with little warning.
How often is this forecast updated?
The page is rebuilt every morning from the latest model run, and the SpotCast card refreshes live in your browser. The date stamp above the outlook shows when it was last generated.
What do GO, CAUTION, and NO-GO mean?
GO means conditions are favourable for most recreational boats. CAUTION means marginal — manageable for experienced crews in capable vessels, but check the wind and sea timing closely. NO-GO means conditions are hazardous for small craft and the trip is best postponed.
What is the water temperature at Strait of Georgia today?
As of Sep 10, 2026, the satellite-derived sea surface temperature at Strait of Georgia is about 61.8°F, with chlorophyll around 7.51 mg/m³ (nutrient-rich green water). The SST and chlorophyll charts on this page are rebuilt every morning from the SeaLegs AI DeepCast satellite pipeline.
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