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Cape Byron Deep
Canyon·New South Wales·Australia·
Field notes
The shelf drops fast east of Cape Byron, with the continental edge in close - Australia's mainland easternmost point. Black marlin run heavy from September, Spanish mackerel and wahoo push down on the warm current. Note Cape Byron Marine Park sanctuary zones inshore.
Current conditions
Wind
7.6 kt NNW
Gusts 16.7 kt
Waves
2.2 m
Period 9.1 s
Swell
2.2 m
Period 7.8 s
Sea temp
23.5°C
Air 22.5°C
Next 12 hours
13:00
7.6 NNW
2.2m
14:00
5.5 NNW
2.2m
15:00
5.6 NW
2.2m
16:00
7.5 WNW
2.2m
17:00
8.4 WNW
2.2m
18:00
10.4 W
2.2m
19:00
10.8 W
2.1m
20:00
11.7 W
2.1m
21:00
12.9 WSW
2.1m
22:00
13.6 WSW
2m
23:00
14.1 WSW
2m
00:00
13.8 W
1.9m
Tides
Nearest BOM tide station: Brunswick Heads ↗ (17.7 km · secondary)
We don't predict tides on-site — BOM's published tables are authoritative.
BOM · Byron CoastIssued at 10:00 pm EST on Tuesday 19 May 2026
Situation. A trough is crossing the coastal waters, with a low pressure system forming within the trough off the south coast. The low will then head further offshore and remain over the Tasman Sea for the next several days, whipping fresh to strong southerly winds and large powerful waves to the coastline mid to late this week.
Tuesday 19 May until midnight. Winds: Westerly 15 to 20 knots, reaching up to 25 knots offshore north of Yamba. Seas: Around 1 metre, increasing to 1.5 to 2 metres offshore. Swell: Northeasterly 2.5 metres. Weather: Partly cloudy.
Wednesday 20 May. Strong Wind Warning for Wednesday for Byron Coast Winds: West to southwesterly 15 to 25 knots turning southerly 20 to 25 knots during the morning. Winds reaching up to 30 knots during the afternoon and evening. Seas: 1.5 to 2.5 metres. 1st Swell: Southerly below 1 metre, increasing to 1.5 to 2.5 metres during the afternoon. 2nd Swell: Northeasterly 2 to 2.5 metres, tending easterly 1.5 to 2 metres during the morning, then decreasing to 1.5 metres during the afternoon. Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the late afternoon and evening.
Thursday 21 May. Winds: Southerly 25 to 30 knots. Seas: 2.5 to 3 metres. 1st Swell: Southerly 2 to 2.5 metres. 2nd Swell: Easterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm in the early morning.
Friday 22 May. Winds: Southerly 30 to 35 knots. Seas: 3 metres. Swell: Southerly 2.5 to 3 metres, increasing to 3 to 5 metres during the afternoon or evening. Weather: Cloudy. 90% chance of showers. Caution: Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
Source: Open-Meteo Marine + ECMWF (15-min cache) · BOM (1-hr cache). Not for navigation.
Sun & moon
Today
Sun↑ 06:23↓ 17:02
Moon↑ 09:53↓ 19:06
PhaseWaxing crescent 10%
Best windows
- Dawn05:58 – 07:23
- Dusk16:02 – 17:27
Tomorrow
Sun↑ 06:24↓ 17:01
Moon↑ —↓ 20:14
PhaseWaxing crescent 19%
Best windows
- Dawn05:59 – 07:24
- Dusk16:01 – 17:26
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.
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