Browns Mountain
Canyon·New South Wales·Australia·
Field notes
Seamount rising from 700m to around 250m roughly 20nm SE of Sydney Heads. Premier blue-water ground for marlin, yellowfin and big-eye, working the temperature breaks Jan-May. Long run requires settled weather and seaworthy boat.
Current conditions
Wind
10 kt NW
Gusts 13.4 kt
Waves
2 m
Period 10.5 s
Swell
1.8 m
Period 8.4 s
Sea temp
20.2°C
Air 16.1°C
Next 12 hours
10:00
10 NW
2m
11:00
10 NNW
2m
12:00
11 NNW
1.9m
13:00
11.9 N
1.9m
14:00
12.5 NNE
1.9m
15:00
14.1 NNE
1.9m
16:00
13.8 NNE
1.8m
17:00
14.3 NNE
1.8m
18:00
14.3 NNE
1.8m
19:00
14.2 NNE
1.8m
20:00
13.9 NNE
1.8m
21:00
13.4 N
1.8m
Tides
Nearest BOM tide station: Botany Bay ↗ (43.1 km · secondary)
We don't predict tides on-site — BOM's published tables are authoritative.
BOM · Sydney CoastIssued at 4:05 pm EST on Tuesday 21 July 2026
Situation. Northerly winds are becoming west to northwesterly as a ridge extending from a high over the Tasman Sea recedes ahead of a cold front approaching the state from the southwest. The cold front will then cross the coastal waters on Thursday into early Friday, with a fresh to strong southwesterly wind change in its wake.
Tuesday 21 July until midnight. Winds: Northeasterly 10 to 15 knots turning northerly in the evening. Seas: Below 1 metre. Swell: Easterly 1 to 1.5 metres. Weather: Mostly clear.
Wednesday 22 July. Winds: North to northwesterly 10 to 15 knots tending west to northwesterly in the late morning. Seas: Around 1 metre. Swell: East to northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Sunny.
Thursday 23 July. Winds: Westerly 15 to 20 knots turning southwesterly 15 to 25 knots in the early afternoon. Seas: Around 1 metre, increasing to 1 to 1.5 metres around midday. Swell: Northeasterly around 1 metre. Weather: Mostly sunny.
Friday 24 July. Winds: Southwesterly 15 to 20 knots. Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon or evening. Swell: Southerly below 1 metre, increasing to 2 to 3 metres during the morning. Weather: Mostly sunny.
Source: Open-Meteo Marine + ECMWF (15-min cache) · BOM (1-hr cache). Not for navigation.
Sun & moon
Today
Sun↑ 06:55↓ 17:06
Moon↑ 10:43↓ 00:26
PhaseFirst quarter 49%
Best windows
- Dawn06:28 – 07:55
- Dusk16:06 – 17:33
Tomorrow
Sun↑ 06:54↓ 17:07
Moon↑ 11:11↓ 01:26
PhaseFirst quarter 59%
Best windows
- Dawn06:27 – 07:54
- Dusk16:07 – 17:34
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
Canyon
Region
New South Wales, Australia
Fishing style
offshore and bluewater fishing
Structure
Typically holds drop-offs — work the structure for holding fish.
Licence
Recreational fishing licence may apply — check the New South Wales fisheries regulator before fishing.
Closures
Always confirm current marine park / closure status and seasonal bag limits.
Saved.
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