Moreton Bay Marine Forecast
Updated Tue Oct 27, 2026
Good Tue-Wed; Thursday needs care, choppy seas
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Marine Forecast for Moreton Bay Oct 27–29, 2026
📋 Good Tue-Wed; Thursday needs care, choppy seas
Good day for the 12-hour trip. Light winds under 12 knots and 1.2-1.6 ft seas at 4-5 seconds from the northeast to east. A 65% chance of showers peaks around 4:00 PM, so bring rain gear.
Best day of the period. Near-calm winds of 0-5 knots from the west-southwest and 0.8-1.1 ft seas at 5-6 seconds from the east. A 47% chance of showers peaks around 1:00 PM, so pack rain gear.
CAUTION for the 12-hour trip. Steep 3-second wind-wave chop of 1.2-1.9 ft from the south-southeast to east-southeast for about 11 hours, with 5-10 knot winds and gusts to 24 knots. Calmer before about 4:00 AM.
Conditions depend on the day for a 12-hour trip. Tuesday and Wednesday are both GO with light winds and low seas, while Thursday is CAUTION because steep, short-period wind-wave chop builds through most of the day. Wind stays under 12 knots throughout, so the main concern is sea state and brief gust spikes rather than sustained wind.
Recent days at Moreton Bay
Today’s Water at Moreton Bay
Sea surface temperature and chlorophyll around Moreton Bay, imaged fresh every morning. Water at the star is 22.3°C today, and chlorophyll of 0.96 mg/m³ reads as green shelf water at the spot.
Imagery: Oct 27, 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.
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 Moreton Bay
Moreton Bay is Brisbane's sheltered water, screened from the Coral Sea by Moreton and North Stradbroke Islands. Inside the bay the fetch is limited and the swell is largely stopped; outside the islands, through the bar, it is open ocean. Those are two different boating days, and the difference is worth respecting.
The outlook below 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 conditions on Moreton Bay
The bay's working wind is the southeasterly, and because the bay is shallow it responds quickly — a fresh southeast builds a short, steep chop far out of proportion to the wave height you would expect from the same wind in deep water. Short-period chop is uncomfortable and tiring rather than dangerous for most boats, but it decides whether a day is enjoyable.
Through the warmer months, watch the afternoon. Southeast Queensland summers bring afternoon and evening thunderstorms that can arrive fast and lift wind sharply for a short period, and a calm morning is no guarantee of a calm run home. If your day involves crossing out through the bar into open water, weight swell as heavily as wind — the shelter ends where the islands do.
Moreton Bay forecast FAQ
How is the sea at Moreton Bay today?
As of Oct 27, 2026, the SeaLegs AI verdict for Moreton Bay is GO. A good day for a 12-hour trip, with any departure time workable. Overnight gusts reach 20-25 knots from the south until about 4:00 AM, then winds ease to 3-5 knots from the southeast by dawn and stay at 10 knots or less from the south-southeast to east-southeast through the day. Seas run 1.2-1.6 ft at 4-5 seconds from the northeast to east, a little short but gentle at this height. There is a 65% chance of showers peaking around 4:00 PM, so bring rain gear. Model confidence is moderate at 74%, with some disagreement on wave period.
How accurate is this Moreton Bay marine forecast?
The outlook is generated from the latest marine model data and rated GO, CAUTION, or NO-GO by the same AI engine used in the SeaLegs AI app. It's a planning aid, not a substitute for the Bureau of Meteorology's coastal waters forecast and marine warnings — always check those before heading out.
Does this cover outside the bay as well?
This forecast describes Moreton Bay itself. Conditions outside Moreton and North Stradbroke Islands are usually rougher, because the islands stop most of the ocean swell — if you're crossing the bar, plan for the open water, not the bay.
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 Moreton Bay today?
As of Oct 27, 2026, the satellite-derived sea surface temperature at Moreton Bay is about 22.3°C, with chlorophyll around 0.96 mg/m³ (green shelf water). The SST and chlorophyll charts on this page are rebuilt every morning from the SeaLegs AI DeepCast satellite pipeline.
More offshore forecasts
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