Surf Forecasts:
Cobden Beach - The Channel surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 6PM (local time) - 7.5ft (2.3m), 16s period, W swell with cross-shore winds.
- Most powerful swell: Sunday 16 Aug, 3AM (local time) - 8ft (2.5m), 15s period, W swell with 3,023 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 6PM (local time) - 7.5ft (2.3m), 16s period with W 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 Saturday (Aug 15) at 6PM. The primary swell is predicted to be 2.3m and 16s period. 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 2.5m 15s and forecast to arrive on Sunday (Aug 16) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sat 15th Aug) | 7.5ft (2.3m) 16s |
| Best Surf | 6PM (Sat 15th Aug) | 7.5ft (2.3m) 16s |
| Most Powerful | 3AM (Sun 16th Aug) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Cobden Beach - The Channel over the next 16 days.
The Lowdown
G’day, Rusty here. Alright, this is a real tale of two extremes for Cobden Beach - The Channel. We’ve got some solid, clean, but dangerously large surf kicking things off, then a quiet spell, before another pulse of giants shows up in the second week. The water temp is sitting at 55°, which is about average for this time of year, so nothing wild there.
The first real action is this Saturday morning (15th August). There’s a long-period, 16-second groundswell pouring in from the west at 8 feet. The combined energy is a massive 2789 – that's a lot of power. The wind is light offshore from the SE at just 3 mph, so the surface will be glassy and clean. But I have to be straight with you – this is too big for this break. It’s an exposed beach setup, and with a period that long (over 15 seconds), the waves will be fat, straight, and meaty. This is expert territory at best and honestly, it’s probably more of a kite surfing show than a paddling session.
Saturday afternoon stays big at 8 feet (2601 combined energy), but the wind swings cross-shore from the SW. The quality drops, and the size is still a problem.
Sunday (16th August) is more of the same story. Morning sees a 8-foot swell from the WSW with a clean, moderate offshore wind from the ESE at 12 mph. The combined energy is 2347. Again, the size and long period make it too challenging for most. The afternoon backs off slightly to 7 feet, but the set-up is still too big.
Monday (17th August) finally brings a change. The morning drops to a much more manageable 5 feet from the west, with a period of 14 seconds. The combined energy is down to 965 – moderate now, not monstrous. The wind is a light offshore from the ESE at 6 mph. This is the standout of the first week. Clean, solid, and surfable. It’s a bit much for beginners at 5 feet, but for everyone else, Monday morning is the session to target.
From Monday afternoon through to the end of the week, the swell steadily fades. We get small, clean waves in the 3-5 foot range on Tuesday, Wednesday, Thursday, and Friday, with light winds. Good for logging or a longboard, but nothing exciting.
Then we hit a lull on Saturday (22nd August) afternoon and into Sunday morning (23rd). Saturday afternoon looks poor with rain and onshore wind, and Sunday morning is blown out with a messy 12 foot cross-onshore swell. Another run of huge, unruly surf arrives from Sunday the 23rd all the way through Wednesday the 26th. Swell heights consistently hit 8 to 12 feet, with combined energy readings in the 1536 to 5921 range – that’s very strong to extreme energy. The period is still long (10-17 seconds). Even with the occasional clean wind, these days are all "too big" warnings. This stretch is absolutely for experts only, and realistically, it looks better for kites.
After that big pulse, things finally settle down for the last few days of the outlook. Thursday the 27th morning is promising, with a clean 5 foot swell from the WSW under a light offshore breeze. Friday and Saturday (28th & 29th) stay small, with 3-4 foot waves and clean conditions. Good mellow fun to close out the period.
So to sum it up, the best window by far is Monday (17th August) morning for clean, solid surf. The following Thursday (27th) morning also looks good for a smaller, clean session. The rest is either flat, too small, or ridiculously big.
Rusty.
Short Range ForecastMostly dry. Very mild (max 12°C on Sat afternoon, min 3°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 13°C on Wed afternoon, min 6°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
AM | PM | 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) | W 16 | W 16 | W 16 | WSW 15 | W 15 | WSW 15 | W 14 | WSW 14 | WSW 14 | WSW 10 | WSW 10 | WSW 9 | W 16 | W 15 | W 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | W 14 |
Wave Graph | |||||||||||||||||||||
2789 | 2601 | 1440 | 2347 | 2177 | 1460 | 965 | 811 | 555 | 282 | 370 | 461 | 596 | 544 | 423 | 633 | 471 | 384 | 437 | 269 | 405 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | off | off | off | off | off | cross | off | off | cross | cross-off | cross-off | cross-on | cross-off | cross-off | on | cross-off | cross-off | on | cross |
High Tide | 12:26PM3.33m | 00:43AM3.40m | 1:05PM3.23m | 1:23AM3.24m | 1:44PM3.08m | 2:05AM3.05m | 2:24PM2.92m | 2:49AM2.87m | 3:08PM2.77m | 3:41AM2.70m | 4:03PM2.63m | 4:45AM2.59m | 5:12PM2.55m | ||||||||
Low Tide | 6:33PM0.52m | 6:57AM0.54m | 7:13PM0.64m | 7:37AM0.70m | 7:53PM0.81m | 8:18AM0.89m | 8:35PM1.00m | 9:01AM1.09m | 9:24PM1.20m | 9:50AM1.28m | 10:23PM1.36m | 10:53AM1.43m | 11:36PM1.46m | ||||||||
7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — | — | 7:18 | — | — | |
— | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 12 | 9 | 10 | 11 | 5 | 7 | 8 | 5 | 11 | 10 | 8 | 12 | 13 | 10 | 11 | 11 | 9 | 10 | 12 | 11 |
Feels °C | 10 | 10 | 6 | 4 | 7 | 0 | 4 | 4 | 2 | 8 | 7 | 4 | 10 | 10 | 8 | 9 | 9 | 7 | 9 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | W 16 | W 16 | W 10 | WSW 15 | W 15 | WSW 15 | W 14 | WSW 14 | WSW 14 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | W 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | W 14 |
2789 | 2601 | 785 | 2347 | 2177 | 1460 | 965 | 811 | 555 | 282 | 370 | 461 | 288 | 294 | 423 | 633 | 471 | 384 | 437 | 269 | 405 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 16 | — | — | — | — | — | W 18 | WSW 14 | WSW 14 | WSW 17 | W 16 | W 15 | WSW 10 | — | — | — | — | — | W 24 |
— | — | 1440 | — | — | — | — | — | 25 | 189 | 195 | 300 | 596 | 544 | 197 | — | — | — | — | — | 11 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 18 | — | WSW 13 | — | — | — | — | — | — | — | — | W 19 |
— | — | — | — | — | — | — | — | — | 25 | — | 35 | — | — | — | — | — | — | — | — | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 4 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 173 | 0 | 1 | 0 | 0 | 0 | 48 | 0 | 0 | 48 | 0 | 0 | 136 | 0 | 0 | 128 | 0 | 0 | 37 | 0 |
Best forecast wave conditions in West Coast South Island | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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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.











