Surf Forecasts:
Cobden Beach - The Channel surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 3AM (local time) - 7ft (2.2m), 9s period, N swell with cross-shore winds.
- Most powerful swell: Saturday 15 Aug, 3AM (local time) - 8ft (2.4m), 16s period, W swell with 3,046 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 3AM (local time) - 7ft (2.2m), 9s period with N 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 Thursday (Aug 13) at 3AM. The primary swell is predicted to be 2.2m and 9s period with a secondary swell of 1.4m and 10s. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Cobden Beach - The Channel in the next 16 days are 2.4m 16s and forecast to arrive on Saturday (Aug 15) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Thursday (Aug 20) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 13th Aug) | 7ft (2.2m) 9s |
| Best Surf | 3AM (Thu 13th Aug) | 7ft (2.2m) 9s |
| Most Powerful | 3AM (Sat 15th Aug) | 8ft (2.4m) 16s |
Table - best surf conditions forecast for Cobden Beach - The Channel over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a solid run of surf coming up at Cobden Beach - The Channel, starting this Thursday morning and stretching out for a couple of weeks. The water temp is sitting about average for this time of year, nothing to write home about, just normal.
First up, Thursday 13th August morning. We’re looking at a 6ft swell from the WNW with a 10-second period and a light cross-off breeze from the ENE. The combined energy is moderate (1027). It’s clean, but this one’s for the experienced crew only – the power is there, and the sets will have some punch. It’s a solid start.
Friday 14th August morning, the swell drops back to 3ft from the WSW, but the period stretches right out to 15 seconds, giving it a long, groundswell feel. An offshore ESE breeze of 10 km/h has it glassy clean. Combined energy is moderate (710). This is a classic smaller day for the longboard or a fun mid-length, and the tide will be your friend.
Now, here’s the standout. Saturday 15th August morning. The swell is 8ft from the west with a 16-second period, and the wind is glassy from the SSE. Combined energy is a strong 2789. This is a big, powerful, long-period groundswell. The problem is, it’s going to be too big for this break – this is expert-only territory. The waves will be hefty, the sets long, and the paddle-out will sort the men from the boys. If you’re not confident, give it a miss. The afternoon stays similar at 8ft.
Sunday 16th August is still pumping. Morning sees 7ft from the west, 15-second period, and a clean offshore ESE breeze at 20 km/h. Combined energy is strong at 2119. Again, too big for most, but if you’re an experienced local, the offshore wind will make for some epic, clean walls. The afternoon drops to 7ft, still offshore, and still solid.
Monday 17th August morning, the swell eases to 5ft from the west, 14-second period, with a light cross-off breeze from the east. Clean and moderate energy (938). This is a much better size for the average surfer – still got some push, but not the beating of the weekend.
Tuesday 18th August morning, the swell is 5ft from the WSW, but the period drops to 9 seconds. Combined energy is low-moderate (597). It’s clean with an offshore ESE breeze, but the shorter period means it’ll be a bit more disorganized and crumbly.
Wednesday 19th August morning, back to a 4ft swell from the west with a 15-second period. Clean with a cross-off breeze from the east. Combined energy is moderate (908). This is a nice, mellow, long-period groundswell that will offer some good lines, especially if you find a bank.
There’s a bit of a lull in quality from the 20th through the 22nd, with small clean mornings but nothing to get excited about. Swells hover around 3ft to 4ft with moderate energy.
Then on Sunday 23rd August afternoon, we get a spike: 8ft from the west with an 8-second period – that’s a short-period, wind-driven swell, and combined energy is moderate (1020). The wind is cross-on from the north. This is a messy, lumpy affair, and again too big for this spot. Not a good look.
Monday 24th is a write-off – fresh cross-onshore winds up to 30 km/h, solid 6ft to 8ft swell, but the wind is howling and rain is coming in. Poor conditions. Skip it.
We get a bit of a reset on Tuesday 25th August morning – 5ft from the WSW, 13-second period, light cross-off breeze from the east, clean. Moderate energy (699). A decent, workable morning.
The final standout to keep an eye on is Friday 28th August morning. A 7ft swell from the WNW with an 8-second period, but the wind is offshore from the southeast at 10 km/h. Combined energy is moderate-strong (1045). Again, it’s a bit big for the everyday surfer, but if you’re experienced, that offshore wind will make for some clean, hollow walls.
So, overall: The best window for experts is the weekend of the 15th-16th, but it’s too big for the average punter. The best all-rounder clean session is Friday 14th morning or Monday 17th morning. The long-range promise on the 28th is worth noting, but it’s a way off.
Stay stoked, check the tides, and don’t be a hero if it’s too big.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Wed night. Very mild (max 13°C on Thu afternoon, min 8°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 11°C on Sun afternoon, min 3°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | NNW 9 | WNW 10 | WNW 11 | WNW 10 | WSW 15 | WSW 19 | W 17 | W 16 | W 15 | W 16 | W 15 | W 15 | WSW 14 | W 14 | WSW 14 | WSW 14 | WSW 9 | WSW 9 | W 16 |
Wave Graph | |||||||||||||||||||
901 | 565 | 634 | 502 | 284 | 1083 | 2580 | 2789 | 2534 | 2789 | 2119 | 1739 | 1402 | 938 | 799 | 308 | 360 | 289 | 522 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | off | cross | cross-off | glassy | cross | off | off | off | cross-off | cross-off | cross-on | off | off | cross | cross-off |
High Tide | 10:33PM3.44m | 11:01AM3.37m | 11:19PM3.51m | 11:44AM3.39m | 00:02AM3.49m | 12:26PM3.33m | 00:43AM3.40m | 1:05PM3.23m | 1:23AM3.24m | 1:44PM3.08m | 2:05AM3.05m | 2:24PM2.92m | 2:49AM2.87m | ||||||
Low Tide | 4:47AM0.45m | 5:09PM0.50m | 5:33AM0.40m | 5:52PM0.47m | 6:16AM0.43m | 6:33PM0.52m | 6:57AM0.54m | 7:13PM0.64m | 7:37AM0.70m | 7:53PM0.81m | 8:18AM0.89m | 8:35PM1.00m | |||||||
— | 7:31 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:24 | — | — | |
— | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | |
mm | 9 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 10 | 12 | 13 | 10 | 12 | 13 | 10 | 11 | 12 | 8 | 10 | 11 | 6 | 9 | 9 | 6 | 11 | 11 | 8 |
Feels °C | 7 | 11 | 12 | 8 | 11 | 10 | 8 | 9 | 10 | 5 | 4 | 6 | 1 | 6 | 6 | 3 | 9 | 8 | 5 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | WNW 10 | WNW 11 | WNW 10 | WNW 9 | WSW 19 | W 17 | W 16 | W 15 | W 16 | W 15 | W 15 | WSW 14 | W 14 | WSW 14 | WSW 9 | WSW 9 | WSW 9 | WSW 9 |
901 | 565 | 634 | 502 | 238 | 1083 | 2580 | 2789 | 2534 | 2789 | 2119 | 1739 | 1402 | 938 | 799 | 166 | 360 | 289 | 360 | |
Swell 2 Height (m) Direction Period (s) | WNW 11 | N 8 | N 8 | WSW 16 | WSW 15 | W 8 | W 5 | — | — | — | — | — | — | — | — | WSW 14 | W 14 | WSW 14 | W 16 |
317 | 297 | 111 | 337 | 284 | 86 | 25 | — | — | — | — | — | — | — | — | 308 | 181 | 192 | 522 | |
Swell 3 Height (m) Direction Period (s) | WSW 17 | W 15 | WSW 17 | N 7 | W 19 | NW 8 | — | — | — | — | — | — | — | — | — | W 18 | W 18 | W 18 | — |
101 | 165 | 235 | 24 | 188 | 32 | — | — | — | — | — | — | — | — | — | 25 | 56 | 58 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 48 | 1 | 0 | 48 | 1 | 1 | 0 | 0 | 0 | 128 | 0 | 0 | 48 | 0 |
Best forecast wave conditions in West Coast South Island | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











