
Surf Forecasts:
Cobden Breakwater surf forecast from 11 Sep 2026:
- Best quality surf: Saturday 12 Sep, 9AM (local time) - 13ft (4.0m), 11s period, W swell with onshore winds.
- Most powerful swell: Saturday 12 Sep, 12PM (local time) - 11ft (3.5m), 16s period, W swell with 6,704 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 9AM (local time) - 13ft (4.0m), 11s 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 Saturday (Sep 12) at 9AM. The primary swell is predicted to be 4.0m and 11s period. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Cobden Breakwater in the next 16 days are 3.5m 16s and forecast to arrive on Saturday (Sep 12) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Sep 16) at 3PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 12th Sep) | 13ft (4.0m) 11s |
| Best Surf | 9AM (Sat 12th Sep) | 13ft (4.0m) 11s |
| Most Powerful | 12PM (Sat 12th Sep) | 11ft (3.5m) 16s |
Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's on the table for the next couple of weeks. It’s a bit of a mixed bag, but there are a few moments that are gonna get the blood pumping.
The main event is Cobden Breakwater. This place is exposed to the west, and we’ve got a serious run of big, powerful western groundswell coming in. The water’s sitting at 54°F right now, which is pretty much spot-on average for this time of year, so no surprises there.
For the experienced crew, Friday the 11th is a ripper. We’re looking at 8ft of west swell, with a very long 17-second period pushing a massive amount of energy (4014). The winds are glassy, it’s a proper groundswell that’ll groom nicely on this setup. But be warned, at this size and with that kind of energy, this is strictly for the experts only. It’s the standout of the first week.
Saturday the 12th gets real serious, with 13ft swell, but the wind swings onshore at 15 to 20 km/h. The wave energy is through the roof (3524 to 6251), but with the wind, it’s going to be raw and the swell is way too big for comfort. The same goes for Sunday the 13th morning – 5ft swell but clean and glassy, though the forecast says it’s for experienced surfers.
The middle of the week gets a bit calmer. Tuesday the 15th morning brings a much more manageable 4ft swell from the WSW, glassy conditions, and it’s a long 14-second period. The energy is a bit lower (605), which makes it a great window for intermediates to get amongst it. The crowd rating is 'rare', so you might have it to yourself.
We then hit a bit of a dry spell. From Wednesday the 16th through to Friday the 18th, the wind is messy and onshore, and the swell is either too small or too chunky. The 30 km/h winds on Saturday the 19th make it a write-off for paddling – that’s more of a kite session.
Now, looking into the second week, it’s promising but less certain. Sunday the 20th morning is a standout for the big-wave chargers again. 13ft of west swell with a clean light ESE wind, and a massive surge of energy (5234). It’s a big one, but that offshore breeze will make it as clean as you’ll get at that size.
Monday the 21st is a nice drop-off. The swell drops to 7ft, the wind goes light offshore from the east, and it cleans up nicely. The energy is a solid 1465. It’s a good, solid day for anyone who’s comfortable at that size.
The last few days have a couple of callouts. Thursday the 24th morning is another big guest day with 12ft swell and clean offshore winds, but again, it’s for experts only. Friday the 25th morning offers a window of 5ft swell with a light offshore breeze, a period of 14 seconds, and clean conditions. A good, clean, intermediate-friendly option to finish the forecast.
So overall, the standout is Friday the 11th afternoon for the experts, and Tuesday the 15th morning for a clean, quieter session. There are a few gaps in the middle where it’s flat or blown out, but the second week has some good clean windows if you’re patient.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Fri night. Very mild (max 12°C on Sun morning, min 9°C on Fri night). Winds decreasing (fresh winds from the SW on Fri night, calm by Sat night). | Days 5-7 Weather SummaryHeavy rain (total 40mm), heaviest during Wed night. Very mild (max 13°C on Wed morning, min 9°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 11 | W 16 | WSW 16 | W 16 | W 10 | WSW 15 | W 15 | WSW 14 | W 14 | WSW 14 | WSW 14 | W 9 | W 9 | W 11 | WNW 10 | WSW 14 | W 14 | W 10 |
Wave Graph | |||||||||||||||||||
6667 | 3912 | 6603 | 1940 | 1347 | 1145 | 953 | 1739 | 1382 | 951 | 514 | 395 | 153 | 325 | 1011 | 799 | 1491 | 2038 | 1161 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | on | on | cross-on | on | glassy | glassy | glassy | cross-off | cross-off | cross-off | cross-on | cross-on | on | on |
High Tide | 10:56PM3.42m | 11:18AM3.31m | 11:35PM3.38m | 11:55AM3.27m | 00:12AM3.28m | 12:30PM3.18m | 00:49AM3.14m | 1:06PM3.06m | 1:27AM2.98m | 1:42PM2.91m | 2:08AM2.81m | 2:24PM2.76m | 2:58AM2.65m | ||||||
Low Tide | 5:08AM0.43m | 5:25PM0.47m | 5:47AM0.47m | 6:03PM0.53m | 6:24AM0.57m | 6:39PM0.64m | 7:00AM0.71m | 7:16PM0.80m | 7:37AM0.89m | 7:55PM0.97m | 8:18AM1.07m | 8:40PM1.16m | |||||||
— | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | |
— | — | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:25 | — | |
mm | 2 | — | — | 3 | 1 | 2 | 1 | 1 | — | — | — | — | 2 | 2 | 5 | 30 | 1 | — | 1 |
Temp °C | 10 | 10 | 10 | 9 | 12 | 12 | 11 | 12 | 12 | 10 | 12 | 12 | 12 | 13 | 12 | 11 | 12 | 11 | 11 |
Feels °C | 7 | 4 | 5 | 4 | 10 | 8 | 9 | 10 | 9 | 9 | 11 | 11 | 11 | 9 | 9 | 7 | 9 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | — | W 11 | W 16 | WSW 16 | W 9 | W 10 | W 9 | W 15 | WSW 14 | W 14 | WSW 14 | WSW 14 | WSW 13 | W 9 | W 11 | WNW 10 | WSW 14 | W 14 | W 10 |
— | 3912 | 6603 | 1940 | 1087 | 1070 | 715 | 1739 | 1382 | 951 | 514 | 395 | 98 | 325 | 1011 | 799 | 1491 | 2038 | 1161 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 16 | W 16 | WSW 15 | — | — | — | — | N 12 | — | W 18 | — | WSW 14 | NW 8 | NNW 8 | W 16 |
— | — | — | — | 1347 | 1145 | 953 | — | — | — | — | 3 | — | 6 | — | 674 | 256 | 89 | 1093 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 9 | N 7 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | 27 | |
Wind waves Height (m) Direction Period (s) | W 16 | — | — | W 9 | — | — | — | — | — | — | — | — | W 9 | — | NNW 5 | — | — | — | — |
6667 | — | — | 1251 | — | — | — | — | — | — | — | — | 153 | — | 69 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 156 | 122 | 307 | 122 | 0 | 122 | 0 | 0 | 48 | 0 | 0 | 0 | 85 | 180 | 210 | 85 | 169 | 202 |
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 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.










