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Tides

Tide times at Alcoa Jetty (Kwinana)

Friday 28 August 2026 · Australia/Perth

Today's high and low tides at Alcoa Jetty (Kwinana)

Today Time Height (m)
Low 1:45 am -0.04
High 9:10 am 0.26
Low 4:10 pm -0.13
High 10:30 pm 0.04

Sun, moon and bite times at Alcoa Jetty (Kwinana) today

Sun
↑ 6:39 am · ↓ 5:57 pm
Moon
↑ 6:09 pm · ↓ 6:32 am
Moon phase
Full · 100%
Sea temp
17.4°C
Swell (max)
1.8 m @ 10 s SW
Best bite
5:30 pm–7:30 pm

See full bite times for Alcoa Jetty (Kwinana) →

Sea-level curve · today

Scaled to today's range (datum is global mean sea level).

Swell · next 7 days at Alcoa Jetty (Kwinana)

Day Max swell Period Direction
Fri 28 Aug Today 1.8 m 10 s SW
Sat 29 Aug 1.1 m 12 s SW
Sun 30 Aug 1.4 m 12 s SW
Mon 31 Aug 1.4 m 12 s SW
Tue 1 Sep 1.8 m 10 s SW
Wed 2 Sep 1.8 m 10 s SW
Thu 3 Sep 1.8 m 10 s SW

Open-ocean swell at the nearest offshore model cell — expect less of it inside protected water.

Next 14 days at Alcoa Jetty (Kwinana)

Tap a day to open the full hourly forecast for Alcoa Jetty (Kwinana).

About Alcoa Jetty (Kwinana)

Alcoa Jetty in Kwinana is one of the few spots in Cockburn Sound where you can access genuinely deep water from the shore.

Tide character & fortnight outlook

Today's tides at Alcoa Jetty (Kwinana) sit in the spring band — peak-to-trough range about 0.39 m (moon 100% illuminated).

Across the next 7 days at Alcoa Jetty (Kwinana), the average peak-to-trough tide range is about 0.19 m. The biggest swing this week falls on Friday (~0.39 m).

Across the next fortnight, the biggest spring tides at Alcoa Jetty (Kwinana) peak around Saturday 5 Sep at about 0.62 m, and the smallest neap tides fall around Thursday 3 Sep at about 0.01 m.

Best tide state to fish Alcoa Jetty (Kwinana)

South-facing position inside Cockburn Sound. Fishes well in most weather thanks to the sound's geography and the jetty extending into deeper protected water. Wind off the land, water like glass — until it isn't. The deep water around the jetty pylons creates substantial current on tide changes; gear up for it. Cockburn Sound water clarity varies with weather and reduces after heavy rain. Shipping movements have thinned since Alcoa curtailed the Kwinana refinery in June 2024 and announced its permanent closure in September 2025, with decommissioning running through 2026 — the port and rail facilities stay operational, so vessel traffic continues but not at the old loading tempo.

What anglers target here

Anglers fishing Alcoa Jetty (Kwinana) typically time sessions around the tide for pink snapper, mulloway (jewfish), australian herring, tailor, and skipjack trevally (skippy).

Tide questions, answered

What time is high tide at Alcoa Jetty (Kwinana) today?
Today's high tides at Alcoa Jetty (Kwinana) are at 9:10 am and 10:30 pm.
What time is low tide at Alcoa Jetty (Kwinana) today?
Today's low tides at Alcoa Jetty (Kwinana) are at 1:45 am and 4:10 pm.
Is Alcoa Jetty (Kwinana) on a spring or neap tide this week?
Today's tides at Alcoa Jetty (Kwinana) sit in the spring band — peak-to-trough range about 0.39 m (moon 100% illuminated).
When is the best tide to fish Alcoa Jetty (Kwinana)?
South-facing position inside Cockburn Sound. Fishes well in most weather thanks to the sound's geography and the jetty extending into deeper protected water. Wind off the land, water like glass — until it isn't. The deep water around the jetty pylons creates substantial current on tide changes; gear up for it. Cockburn Sound water clarity varies with weather and reduces after heavy rain. Shipping movements have thinned since Alcoa curtailed the Kwinana refinery in June 2024 and announced its permanent closure in September 2025, with decommissioning running through 2026 — the port and rail facilities stay operational, so vessel traffic continues but not at the old loading tempo. Today's peak bite window runs 5:30 pm–7:30 pm.

Nearby tide spots