Surf Forecasts:
Cobden Breakwater surf forecast from 30 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 6AM (local time) - 13ft (4.0m), 11s period, W swell with cross-onshore winds.
- Most powerful swell: Monday 7 Sep, 6AM (local time) - 26ft (8.0m), 16s period, W swell with 33,773 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 6AM (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 Tuesday (Sep 01) at 6AM. The primary swell is predicted to be 4.0m and 11s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Cobden Breakwater in the next 16 days are 8.0m 16s and forecast to arrive on Monday (Sep 07) 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 1.8m 8s period and expected on Sunday (Sep 06) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 1st Sep) | 13ft (4.0m) 11s |
| Best Surf | 6AM (Tue 1st Sep) | 13ft (4.0m) 11s |
| Most Powerful | 6AM (Mon 7th Sep) | 26ft (8.0m) 16s |
Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.
The Lowdown
Righto, Rusty here. Let's have a look at what's coming down the pipe for the next couple of weeks.
First up, the water temps are sitting at 55°, which is about normal for the time of year, so nothing to worry about there.
Honestly, the next few days are a write-off. We’ve got a massive amount of energy in the water – but it's all onshore and messy. Sunday the 30th through Monday the 1st of September is just poor, with strong winds and rain. You wouldn't want to be out there.
Now, things start to look a little more interesting on Wednesday morning, the 2nd of September. Cobden Breakwater will see a smaller 7ft swell from the west, but the wind is going to be dead calm, glassy. That’s a huge positive. The swell period is a long 13 seconds, so it’ll have some proper grunt, but it might be a bit straight for a beach break. It’s a good window for an experienced surfer to get some clean, orderly waves.
The real standout, if you can wait, looks like Saturday the 5th of September. The swell is predicted to be a solid 13ft from the west, with a very long 15-second period. That’s some serious groundswell. The wind is a light cross-onshore, so it’ll be a bit lumpy, but the power will be there. However, the models are telling us this is going to be too big for the break, so only the experts with the biggest boards should even think about it. The same goes for the following Monday the 7th of September with a 12ft, 14-second period swell and clean offshore winds – it’s a beautiful setup, but again, too big.
There’s a long gap of poor conditions after that, with only marginal windows on the 8th and 10th of September. The next promising but uncertain window is Saturday the 12th of September. Another big swell – 16ft from the west with a very long 16-second period. The wind is light onshore, so it’s another one that’s likely too big unless you’re a real charger.
The final bright spot on the horizon is Monday the 14th of September. We’ll have a 12ft groundswell from the west with a 16-second period. The wind is forecast to be light easterly and glassy, which is perfect. But like the others, the models are flagging it as too big for this spot.
So, to sum it up: if you’re an experienced surfer, the glassy session on Wednesday morning the 2nd is your best bet for a manageable, clean wave. For the big-wave crew, the windows on the 5th, 7th, 12th, and 14th of September look like they’ll be pumping, but they’re serious swell events and you’ll need to be on your game. The rest of the time is mostly blown out or too dangerous.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Sun night. Very mild (max 13°C on Wed afternoon, min 7°C on Mon night). Winds decreasing (strong winds from the WSW on Mon morning, calm by Tue afternoon). | Days 5-7 Weather SummaryHeavy rain (total 52mm), heaviest during Thu night. Very mild (max 15°C on Thu afternoon, min 10°C on Fri night). Winds increasing (light winds from the WNW on Wed night, fresh winds from the W by Fri afternoon). | ||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 11 | W 11 | WSW 11 | WSW 12 | W 11 | W 13 | W 13 | W 13 | WSW 14 | WNW 9 | W 10 | WSW 14 | WSW 13 | W 9 | W 9 | W 11 | W 15 | W 16 | W 16 |
Wave Graph | |||||||||||||||||||
4778 | 6136 | 7336 | 6540 | 3191 | 3338 | 2060 | 1422 | 507 | 1215 | 818 | 1206 | 1042 | 2639 | 3019 | 4037 | 6982 | 7613 | 4831 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | on | on | glassy | cross-on | cross-on | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross-off |
High Tide | 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 | 6:22AM0.61m | 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 | |||||||
— | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | |
— | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | |
mm | 5 | 2 | 2 | 2 | — | 1 | 3 | 1 | 2 | 11 | 5 | 6 | 13 | 4 | 3 | 4 | 2 | 4 | 14 |
Temp °C | 11 | 9 | 9 | 9 | 9 | 8 | 10 | 12 | 13 | 14 | 14 | 15 | 14 | 11 | 11 | 11 | 12 | 13 | 12 |
Feels °C | 3 | 1 | -1 | -1 | 4 | 4 | 6 | 7 | 7 | 9 | 11 | 11 | 9 | 5 | 3 | 5 | 6 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | W 11 | W 13 | — | W 13 | WSW 14 | W 15 | W 10 | WSW 14 | WSW 13 | — | — | — | — | — | W 16 |
— | — | — | — | 3191 | 3338 | — | 1422 | 507 | 157 | 818 | 1206 | 1042 | — | — | — | — | — | 4831 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NW 8 | — | WNW 9 | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 403 | — | 247 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 11 | W 11 | WSW 11 | WSW 12 | — | — | W 13 | — | WNW 6 | WNW 9 | — | NW 8 | N 8 | W 9 | W 9 | W 11 | W 15 | W 16 | NNW 7 |
4778 | 6136 | 7336 | 6540 | — | — | 2060 | — | 331 | 1215 | — | 433 | 142 | 2639 | 3019 | 4037 | 6982 | 7613 | 437 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 153 | 153 | 180 | 153 | 0 | 48 | 122 | 0 | 190 | 190 | 122 | 190 | 190 | 207 | 190 | 202 | 190 | 190 | 190 |
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.











