Cobden Breakwater Surf Break

Lat Long: 42.44° S 171.20° E

Cobden Breakwater Surf Forecast and Surf Report

Issued: 11 am 30 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 30 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 6AM (local time) - 15ft (4.5m), 14s period, W swell with onshore winds.
  • Most powerful swell: Saturday 5 Sep, 6AM (local time) - 15ft (4.5m), 14s period, W swell with 8,620 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 9AM (local time) - 6ft (1.9m), 14s 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 9AM. The primary swell is predicted to be 1.9m and 14s period. 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 14s 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 0.2m 9s period and expected on Sunday (Aug 30) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Wed 2nd Sep)6ft (1.9m) 14s
Best Surf 6AM (Sat 5th Sep)15ft (4.5m) 14s
Most Powerful 6AM (Sat 5th Sep)15ft (4.5m) 14s

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


The Lowdown

G’day, Rusty here. Let’s talk about what’s coming up at Cobden Breakwater.

Honestly, the next few days are a write-off. We’ve got a massive slug of westerly swell ripping through, but the wind is absolutely howling from the same direction – onshore and strong. Sunday the 30th and Monday the 31st of August are a complete mess: 12 ft to 18 ft of raw, wind-chopped swell with 18 to 28 mph winds straight on it. The combined energy is huge (2113 to 6897), but it’s just a washing machine. Don’t even bother paddling out.

Tuesday the 1st of September is slightly smaller, but still with a strong cross-on wind and messy conditions. We finally get a break in the wind on Wednesday the 2nd of September. The morning goes glassy – dead calm – with a clean 6 ft swell from the west, a 14-second period giving it some proper groundswell push. The energy is moderate (1304) and the water temp is sitting at 54°, which is pretty average for this time of year, nothing unusual there. This is a solid intermediate window, but it’s not the standout. The afternoon gets chopped up again, so don’t hang around.

Now, keep your eyes on Monday the 7th of September morning. That’s the real gem. The wind goes glassy again, with an 8 ft west-northwest swell at an 11-second period, and the energy is strong at 3318. The conditions are clean, lined up, and labelled excellent for experienced surfers. This is the best session in the whole outlook – make plans for it. The water stays glassy through the afternoon, but the swell jumps to 12 ft, which is getting into the too-big-for-most territory.

The following days have a few more solid, clean windows. Tuesday the 8th, morning is glassy with a 7 ft west swell, great for intermediates. Thursday the 10th and Friday the 11th both have clean conditions with offshore and cross-off breezes, delivering 8 ft and 7 ft western swells – very consistent, quality waves. By the time we hit the 12th and 13th of September, the swell drops right off and the energy fades to weak (329 to 700), so don’t expect much juice.

The big takeaway: if you’re after one day to lock in, it’s Monday the 7th of September morning. Glassy, solid, and clean. Otherwise, Wednesday the 2nd morning and the week that follows has plenty of clean windows, but the standout is the 7th. The gap at the start is long and ugly – three days of blown-out junk. But it’ll come right.

Rusty.

Short Range Forecast

Heavy rain (total 21mm), heaviest during Sun morning. Very mild (max 11°C on Sun morning, min 8°C on Mon night). Winds decreasing (strong winds from the WSW on Mon afternoon, light winds from the SW by Tue night).

Days 4-6 Weather Summary

Heavy rain (total 35mm), heaviest during Wed night. Very mild (max 14°C on Wed night, min 10°C on Wed morning). Mainly strong winds.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
3
1
1
4
0
0
3
3
2
0
0
0
!
!
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
WSW
9
4
W
9
4.5
W
11
5
W
11
5.5
W
11
5
WSW
11
2.4
W
13
3
W
10
2.4
W
13
1.9
W
14
1.4
WSW
14
3.5
WNW
9
1.9
WSW
11
1.5
W
11
1.7
WSW
13
4.5
W
9
4.5
W
11
4.5
W
14
4.5
W
15
4
W
15
3
W
16
Wave Graph
Metric surfscale
Energy kJ
1667
2549
4743
6363
6897
5858
1854
1819
2060
1304
788
1723
798
525
1026
3356
4076
6720
8129
6560
5160
Wind (km/h)
30
WSW
30
WSW
35
WSW
40
WSW
45
WSW
40
WSW
15
SW
15
SW
20
W
0
NNE
30
NW
30
WSW
5
WSW
10
NW
25
NNW
35
W
30
WSW
25
W
10
WSW
10
NW
15
NNE
Wind State
on
on
on
on
on
on
cross-on
on
on
glassy
cross
on
on
cross
cross
on
on
on
on
cross-on
cross-off
High Tide
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
4:20AM2.79m
4:56PM2.74m
Low Tide
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
10:34AM1.20m
11:22PM1.18m
rain showers
rain showers
mod rain
light rain
light rain
light rain
part cloud
light rain
light rain
light rain
light rain
rain showers
clear
part cloud
mod rain
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
<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
6:54
<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
6:13
 mm
3
2
6
2
2
2
1
3
1
2
13
10
2
1
6
3
Temp °C
11
11
10
10
9
9
9
9
10
12
13
14
13
13
13
12
12
11
12
12
11
Feels °C
5
4
2
1
-1
0
4
4
6
9
7
7
11
10
7
5
5
4
10
10
7
  • 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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