Trepang Bay
Shoreline·Northern Territory·Australia·
Field notes
Large open bay on the northern Cobourg Peninsula between Vashon Head and Smith Point. Mix of sand, weed and scattered reef patches; targeted by Cobourg charters for golden snapper, black jewfish and reef species.
Current conditions
Wind
9.6 kt ENE
Gusts 20 kt
Waves
0.1 m
Period 2.7 s
Swell
0.1 m
Period 2.7 s
Sea temp
29.9°C
Air 27°C
Next 12 hours
01:00
9.6 ENE
0.1m
02:00
7.2 ENE
0.1m
03:00
7.6 ENE
0.1m
04:00
7.8 ENE
0.1m
05:00
7.4 ENE
0.1m
06:00
7.3 ENE
0.1m
07:00
6.9 ENE
0.1m
08:00
6.6 ENE
0.1m
09:00
6.6 ENE
0.1m
10:00
6.6 ENE
0.1m
11:00
8.1 NE
0.1m
12:00
10.3 NE
0.1m
Tides
Nearest BOM tide station: Smith Point - West ↗ (9.2 km · secondary)
We don't predict tides on-site — BOM's published tables are authoritative.
BOM · North Tiwi CoastIssued at 2:30 am CST on Wednesday 21 October 2026
Situation. A weak ridge lies across the Gulf of Carpentaria and the Top End. Winds are tending west to northwesterly through the western waters as a broad trough moves in from the west.
Wednesday 21 October until midnight. Winds: West to northwesterly 10 to 15 knots tending northwest to northeasterly in the early morning then tending west to northwesterly in the early afternoon. Seas: Below 1 metre. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm.
Thursday 22 October. Winds: Variable about 10 knots becoming north to northwesterly 10 to 15 knots in the middle of the day then tending west to northwesterly in the early afternoon. Seas: Below 0.5 metres, increasing to below 1 metre south of Channel Point. Swell: Westerly below 1 metre. Weather: Mostly sunny morning. The chance of a thunderstorm in the afternoon and evening.
Friday 23 October. Winds: Westerly 10 to 15 knots becoming variable about 10 knots during the morning then becoming west to northwesterly 10 to 15 knots during the day. Seas: Below 0.5 metres, increasing to below 1 metre south of Channel Point. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm in the morning and afternoon. North Tiwi Coast: Cape Fourcroy to Cape Don
Wednesday 21 October until midnight. Winds: Easterly 10 to 15 knots turning northeasterly in the late afternoon. Seas: Below 1 metre. Swell: East to northeasterly below 1 metre. Weather: Mostly sunny.
Source: Open-Meteo Marine + ECMWF (15-min cache) · BOM (1-hr cache). Not for navigation.
Sun & moon
Today
Sun↑ 06:15↓ 18:39
Moon↑ 14:26↓ 03:08
PhaseWaxing gibbous 73%
Best windows
- Dawn05:54 – 07:15
- Dusk17:39 – 19:01
Tomorrow
Sun↑ 06:15↓ 18:39
Moon↑ 15:15↓ 03:46
PhaseWaxing gibbous 81%
Best windows
- Dawn05:53 – 07:15
- Dusk17:39 – 19:01
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
Shoreline
Region
Northern Territory, Australia
Fishing style
land-based fishing and estuary fishing
Structure
Typically holds drop-offs and flats — work the structure for holding fish.
Licence
Recreational fishing licence may apply — check the Northern Territory fisheries regulator before fishing.
Closures
Always confirm current marine park / closure status and seasonal bag limits.
Saved.
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