Semaphore Jetty
Jetty·South Australia·Australia·
Field notes
Long northern metro jetty fishing into Gulf St Vincent. Productive for tommy ruff, mullet and garfish, with mulloway a genuine target on the bigger summer tides using fresh squid or pilchards. Crab raking from the beach beside the jetty in season.
Current conditions
Wind
7.1 kt WSW
Gusts 15 kt
Waves
1.1 m
Period 7 s
Swell
0.8 m
Period 4.5 s
Sea temp
14.9°C
Air 13.1°C
Next 12 hours
01:00
7.1 WSW
1.1m
02:00
6.6 WSW
1m
03:00
5.9 SW
1m
04:00
5 SW
0.9m
05:00
4.5 SSW
0.9m
06:00
3.3 SSW
0.8m
07:00
2.2 SSE
0.8m
08:00
1.5 SE
0.8m
09:00
2.3 SSW
0.7m
10:00
3.2 SW
0.7m
11:00
3.5 WSW
0.7m
12:00
4 WSW
0.6m
Tides
Nearest BOM tide station: Angus Inlet (Garden Island) ↗ (6.4 km · secondary)
We don't predict tides on-site — BOM's published tables are authoritative.
BOM · Gulf St VincentIssued at 9:30 am CST on Sunday 6 September 2026
Situation. A ridge of high pressure lies across the state. A cold front will move across southern coasts early Monday but the ridge will persist further north. A trough over the interior of WA will be near stationary early to mid next week.
Sunday 6 September until midnight. Winds: East to northeasterly 10 to 15 knots turning southeasterly 15 to 20 knots in the late morning and afternoon. Seas: Below 1 metre, increasing to 1 to 1.5 metres by early evening. Swell: Southwesterly 2 to 3 metres inshore, increasing to 2.5 to 4 metres offshore. Weather: Sunny.
Monday 7 September. Winds: Southeasterly 15 to 20 knots turning easterly 15 to 25 knots early in the morning. Seas: 1.5 to 2 metres. Swell: Southwesterly 2 to 2.5 metres. Weather: Cloudy. 60% chance of showers.
Tuesday 8 September. Winds: Southeasterly 15 to 25 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres during the evening. Swell: Southwesterly 2 metres, increasing to 2 to 3 metres during the morning. Weather: Cloudy. 70% chance of showers. The chance of a thunderstorm in the morning. Upper West Coast: Fowlers Bay to Elliston
Sunday 6 September until midnight. Winds: Variable about 10 knots becoming southeasterly 15 to 20 knots in the late afternoon. Seas: Below 1 metre. Swell: Southwesterly 3 to 4 metres, decreasing to 2.5 to 3 metres during the afternoon. Weather: Partly cloudy.
Source: Open-Meteo Marine + ECMWF (15-min cache) · BOM (1-hr cache). Not for navigation.
Sun & moon
Today
Sun↑ 06:30↓ 18:01
Moon↑ 03:50↓ 12:32
PhaseWaning crescent 30%
Best windows
- Dawn06:05 – 07:30
- Dusk17:01 – 18:26
Tomorrow
Sun↑ 06:29↓ 18:02
Moon↑ 04:36↓ 13:44
PhaseWaning crescent 19%
Best windows
- Dawn06:04 – 07:29
- Dusk17:02 – 18:27
Best windows combine civil twilight with the hour either side of sun transit — the universal low-light feeding window most species respond to. Moon phase influence is folkloric; full and new moons coincide with the strongest tide swings.
What's biting
Recent reports from the community. Sign in to log your own catches.
Access & logistics
Spot type
Jetty
Region
South Australia, Australia
Fishing style
jetty and wharf fishing and land-based fishing
Licence
Recreational fishing licence may apply — check the South Australia fisheries regulator before fishing.
Closures
Always confirm current marine park / closure status and seasonal bag limits.
Saved.
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