Cobden Beach - The Channel Surf Break

Lat Long: 42.44° S 171.20° E

Cobden Beach - The Channel Surf Forecast and Surf Report

Issued: 11 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cobden Beach - The Channel sea temperature is
12.7° C
0.5° 

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


Cobden Beach - The Channel surf forecast from 18 Aug 2026:

  • Best quality surf: Monday 24 Aug, 6PM (local time) - 8ft (2.5m), 14s period, W swell with cross-onshore winds.
  • Most powerful swell: Monday 24 Aug, 12AM (local time) - 15ft (4.5m), 15s period, W swell with 8,381 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 6PM (local time) - 5ft (1.6m), 10s period with WSW swell.

Best Forecast Surf Conditions for Cobden Beach - The Channel this week:

The surf forecast for Cobden Beach - The Channel over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 6PM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.6m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cobden Beach - The Channel in the next 16 days are 4.5m 15s and forecast to arrive on Monday (Aug 24) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Aug 19) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 18th Aug)5ft (1.6m) 10s
Best Surf 6PM (Mon 24th Aug)8ft (2.5m) 14s
Most Powerful12AM (Mon 24th Aug)15ft (4.5m) 15s

Table - best surf conditions forecast for Cobden Beach - The Channel over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s break down what’s cooking for the next couple of weeks. We’ve got one main spot to look at, and it’s a bit of a slow burner with a wild tease in the middle.

The first few days are actually pretty decent to get back in the water. Tuesday the 18th kicks things off with a clean 6ft swell from the WSW, light cross-offshore breeze, and the water is sitting at 55°, which is bang on average for this time of year. The energy is solidly moderate (723), and for a beginner-friendly spot like The Channel, that’s a nice, manageable size. The morning is the pick, as the afternoon gets a bit wonky with a cross-on wind.

Wednesday the 19th and Thursday the 20th are more of the same fun – clean, 4ft swell, light cross-off winds, and that long period of 14-16 seconds means the waves will have some real push to them. Long period groundswell like this can be a bit tricky at a beach break, but The Channel is a channel, so it should handle it well. It’s a good run of surf.

The standout window, and I mean the real standout, is the morning of Friday the 21st. We’ve got 3ft of swell but it’s going to be glassy. Dead flat calm. That’s as good as it gets for clean conditions. The energy is still there (443), and while it’s not huge, the quality is going to be top-shelf.

Then things get a bit weird. Saturday the 22nd sees a big jump in size to 8ft, but the wind is onshore and it’s raining. That’s too much juice for a beginner spot, and the conditions are going to be messy. Sunday the 23rd and Monday the 24th are a washout – massive 13ft to 15ft swell with screaming cross-onshore winds. This is full-on, expert-only, hold-your-breath territory. The energy readings are bonkers – one of them hits 6851 – so it’s powerful, but it’s not for paddling. Honestly, this setup looks more interesting for the kite crew than anyone with a paddle.

Tuesday the 25th and Wednesday the 26th are still on the chunky side, but the winds start to settle. Tuesday’s 10ft is still too big for this break, but by Wednesday the 26th, we’re back down to 5ft with clean, cross-offshore winds. That’s a solid return to form. The rest of the week into the first week of September holds a mix of clean, smaller waves, with a final solid morning on Sunday the 30th – 5ft, clean, and excellent conditions for experienced surfers. The last few days of the forecast are small but clean, with a nice 6ft morning on Monday the 1st of September.

So, the best call? Hit that Friday morning the 21st for the glassy perfection. If you miss that, the clean mornings of the 26th and the 30th are your next best bets. The big stuff in the middle is just for the eyes.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 11°C on Tue afternoon, min 6°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 39mm), heaviest during Sat morning. Very mild (max 13°C on Sat afternoon, min 9°C on Fri morning). Winds increasing (calm on Fri morning, fresh winds from the WNW by Sat night).

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
2
3
2
3
3
1
2
2
1
1
0
0
0
0
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)
1.7
WSW
11
1.6
WSW
10
1.6
WSW
10
1.2
WSW
16
1.2
WSW
15
1.5
WSW
14
1.2
WSW
14
1.1
WSW
14
1
WSW
13
1
WSW
14
0.9
WSW
14
0.7
WSW
14
1.3
W
11
3
WNW
9
3
WNW
8
4
W
10
3.5
W
11
4.5
W
15
3.5
W
14
3
W
14
2.4
W
14
Wave Graph
Metric surfscale
Energy kJ
698
492
473
730
666
862
605
471
384
443
336
210
403
1288
1181
3232
2909
8381
5067
3388
2326
Wind (km/h)
10
ESE
5
WSW
15
ESE
15
E
10
NW
10
E
10
E
5
WNW
5
E
5
E
10
W
5
W
25
N
25
NW
40
WNW
30
W
30
WSW
25
W
25
W
20
W
20
WNW
Wind State
cross-off
cross
cross-off
cross-off
on
cross-off
cross-off
on
cross-off
cross-off
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
2:24PM2.92m
2:49AM2.87m
3:08PM2.77m
3:41AM2.70m
4:03PM2.63m
4:45AM2.59m
5:12PM2.55m
5:55AM2.55m
6:28PM2.55m
7:04AM2.59m
7:37PM2.64m
8:04AM2.69m
8:33PM2.78m
Low Tide
8:35PM1.00m
9:01AM1.09m
9:24PM1.20m
9:50AM1.28m
10:23PM1.36m
10:53AM1.43m
11:36PM1.46m
12:08PM1.50m
00:50AM1.47m
1:23PM1.46m
1:55AM1.39m
2:23PM1.34m
2:47AM1.26m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
mod rain
rain showers
rain showers
light rain
rain showers
mod rain
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:22
7:20
7:18
7:18
7:16
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:54
5:55
5:57
5:58
5:59
6:00
 mm
6
7
10
5
4
7
4
4
5
Temp °C
10
11
9
11
11
9
11
11
9
11
11
10
11
13
13
11
11
12
13
13
13
Feels °C
8
8
5
8
8
7
10
9
7
10
8
8
6
9
6
4
4
7
8
9
9
  • Map Icons:
  • Break
  • 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 Beach - The Channel Surf forecast

The above surf forecast table for Cobden Beach - The Channel provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cobden Beach - The Channel can be found by selecting the local surf guide option on the grey menu. Our Cobden Beach - The Channel 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 Beach - The Channel) 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 Beach - The Channel 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 Beach is 173 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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