Cobden Breakwater Surf Break

Lat Long: 42.44° S 171.20° E

Cobden Breakwater Surf Forecast and Surf Report

Issued: 11 pm 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cobden Breakwater sea temperature is
12.3°C
0.1° 

Cobden Breakwater surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Cobden Breakwater surf forecast from 29 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 6PM (local time) - 11ft (3.5m), 16s period, W swell with onshore winds.
  • Most powerful swell: Saturday 5 Sep, 6AM (local time) - 15ft (4.5m), 15s period, W swell with 9,458 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 3AM (local time) - 7.5ft (2.3m), 13s period with W swell.

Best Forecast Surf Conditions for Cobden Breakwater this week:

The surf forecast for Cobden Breakwater over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 02) at 3AM. The primary swell is predicted to be 2.3m and 13s period with a secondary swell of 0.2m and 18s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cobden Breakwater in the next 16 days are 4.5m 15s and forecast to arrive on Saturday (Sep 05) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 8s period and expected on Sunday (Aug 30) at 12PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 2nd Sep)7.5ft (2.3m) 13s
Best Surf 6PM (Sat 5th Sep)11ft (3.5m) 16s
Most Powerful 6AM (Sat 5th Sep)15ft (4.5m) 15s

Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.


The Lowdown

G’day, Rusty here. We’ve got a wild 16-day window ahead – a whole lot of power but a real fight with the wind. The standout window is later in the run, and it’s a beauty if you’ve got the patience.

The first week is a write-off, honestly. Sunday the 30th and Monday the 31st are a total no-go: we’re looking at solid 10ft to 16ft of WSW to W swell, but it’s being hammered by onshore winds of 15 to 25 mph and rain. The combined energy is extreme, reading 2261 on Sunday, climbing to 5996 on Monday, but with conditions like that, it’s just a washing machine. That trend keeps going right through Tuesday the 1st of September, with 12ft to 13ft of wind-affected swell – just ugly. Wednesday the 2nd is still marginal; the swell drops to 7ft but wind is still onshore or cross, with a combined energy of 1567 – it’s not the one.

Now, Thursday morning the 3rd of September – this is your first real glimmer. It’s glassy, dead calm wind from the west, with a 10ft WSW swell, 10-second period and combined energy of 1565. The forecast says excellent surf for experienced surfers. That 10ft is a proper expert wave, no place for learners. The afternoon turns cross-shore and the quality drops, so that morning session is the only shot that day.

Friday the 4th and Saturday the 5th are back to poor, with mounting swell up to 13ft and howling onshore winds – total mess. Keep the board in the car.

Then we get to what I reckon is the best of the whole outlook. Sunday the 6th of September. The morning is a bit small at 6ft but the wind is a clean, cross-off NNE breeze at 9 mph. Combined energy is a massive 4445, which is a lot of juice. But it’s the afternoon that’s the real score: 12ft of WNW swell with the same clean cross-off wind blowing 19 mph. The combined energy jumps to 2495 and the notes say wind and tide are perfect, though the swell is big for the break. At 12ft, this is strictly for the experienced crew. The (Region_URL) is Cobden. The water temp anomaly isn’t given, but it’s about average for the time of year.

Monday the 7th of September morning still has that big 12ft W swell with 14-second period and combined energy of 4635, but the wind turns onshore, so it’s messy. The afternoon cleans up with a cross-off northerly, dropping to 10ft – still a big wave.

Tuesday the 8th of September is another one for experts only. 16ft of WNW swell in the morning with a combined energy of 5354. Wind is light cross-onshore, so it’s not pristine, but the energy is insane. The afternoon holds at 15ft.

From Wednesday the 9th of September things start to drop off. The swell remains big (13ft to 8ft) but the wind is onshore or strong cross-onshore through the 10th and 11th, with combined energy readings still well over 1000 – just a lot of white water.

Saturday the 12th of September morning is a nice surprise. Clean, cross-off ESE breeze, 7ft W swell with an 11-second period and combined energy of 1373. The forecast says excellent conditions for experienced surfers. It’s not the biggest of the window, but the quality is right.

Sunday the 13th of September morning is the real sweet spot for the less experienced. Swell drops to 3ft of WSW groundswell with a very long 16-second period. Combined energy is a moderate 803. And the wind is off – a light ENE breeze, making it glassy clean. This is a proper long-period groundswell, so it’ll wrap in nicely and the sets will have some push but keep the paddling manageable.

Monday the 14th of September morning the energy is down around 614 with 4ft of W swell, but 12 mph onshore wind spoils it.

To sum it up: the best of the best is Sunday the 6th of September afternoon – clean, powerful, expert-only. If you want a tamer but still quality session, Sunday the 13th of September morning with that clean, long-period groundie is your pick. The rest is mostly a battle with the wind.

Rusty.

Short Range Forecast

Heavy rain (total 25mm), heaviest during Sat night. Very mild (max 12°C on Sun morning, min 9°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the WSW by Mon afternoon).

Days 5-7 Weather Summary

Heavy rain (total 25mm), heaviest during Wed night. Very mild (max 14°C on Wed night, min 10°C on Tue night). Winds increasing (calm on Thu morning, strong winds from the WSW by Fri morning).

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
0
0
0
0
0
0
0
0
2
2
2
0
4
3
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
W
18
3
WSW
9
3.5
W
9
5
W
11
5
W
10
5
W
11
4
W
14
4
WSW
10
3.5
W
10
1.6
WSW
13
2.1
W
13
1.9
W
14
3.5
WNW
8
3
W
10
2.1
WSW
12
1.9
WSW
13
3.5
W
9
4
W
10
4.5
W
14
Wave Graph
Metric surfscale
Energy kJ
399
1362
2332
5335
5621
5996
5067
3492
1956
943
1567
1329
1862
1565
1102
1230
1747
3467
7244
Wind (km/h)
5
W
25
WSW
30
W
35
WSW
35
WSW
35
WSW
30
WSW
30
SW
25
SW
10
SW
10
W
20
NNW
30
WNW
5
W
15
NNW
25
NW
35
WNW
35
W
30
WSW
Wind State
glassy
on
on
on
on
on
on
on
on
on
on
cross
cross-on
glassy
cross
cross-on
cross-on
on
on
High Tide
11:35PM3.37m
11:57AM3.29m
00:09AM3.38m
12:31PM3.27m
00:45AM3.33m
1:07PM3.21m
1:25AM3.23m
1:48PM3.10m
2:10AM3.09m
2:36PM2.97m
3:07AM2.93m
3:37PM2.83m
Low Tide
5:47AM0.62m
6:02PM0.65m
6:22AM0.61m
6:36PM0.67m
6:59AM0.65m
7:15PM0.73m
7:40AM0.75m
7:58PM0.84m
8:26AM0.90m
8:50PM0.99m
9:22AM1.06m
9:58PM1.12m
light rain
rain showers
rain showers
mod rain
light rain
light rain
light rain
light rain
cloud
light rain
rain showers
rain showers
rain showers
clear
part cloud
rain showers
light rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:03
7:01
7:00
6:58
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:08
6:09
6:10
6:12
 mm
4
3
2
6
2
2
5
1
2
2
2
9
4
4
2
4
Temp °C
11
12
11
10
10
10
10
10
10
11
12
13
14
12
12
13
13
11
10
Feels °C
7
7
4
3
2
1
4
3
3
8
9
8
9
11
8
9
7
3
3
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Cobden Breakwater Surf forecast

The above surf forecast table for Cobden Breakwater provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cobden Breakwater can be found by selecting the local surf guide option on the grey menu. Our Cobden Breakwater surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Cobden Breakwater) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Cobden Breakwater may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Cobden Breakwater is 172 km (107 miles) from the city of Christchurch. If you plan a holiday in West Coast South Island, look for hotels and other accommodation in Christchurch. Christchurch has rooms for a wide range of budgets as well as car hire and transport links.

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