
Surf Forecasts:
Cobden Breakwater surf forecast from 3 Sep 2026:
- Best quality surf: Saturday 5 Sep, 6AM (local time) - 13ft (4.0m), 14s period, W swell with onshore winds.
- Most powerful swell: Friday 11 Sep, 12AM (local time) - 15ft (4.5m), 20s period, W swell with 17,222 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 6AM (local time) - 13ft (4.0m), 14s 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 05) at 6AM. The primary swell is predicted to be 4.0m and 14s 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 4.5m 20s and forecast to arrive on Friday (Sep 11) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Sep 07) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 5th Sep) | 13ft (4.0m) 14s |
| Best Surf | 6AM (Sat 5th Sep) | 13ft (4.0m) 14s |
| Most Powerful | 12AM (Fri 11th Sep) | 15ft (4.5m) 20s |
Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get into it.
We've got a long window ahead, and the first half of it is a bit of a wild one. The main and really the only spot on the radar is Cobden Breakwater. It's a breakwater setup, so it handles swell a bit differently. The ocean temperature is running about average for this time of year, so nothing wild there.
The pattern starts off pretty grim. Friday the 4th is a total write-off with a strong cross-onshore wind and a big, messy 13ft to 15ft wind swell. The wave energy is through the roof (2956-3618), but it's just poor surf conditions. Saturday the 5th is no better, with a massive 13ft swell and a 14-second period, but the wind is still cross-on. The energy is huge (6343), but it's just too big and choppy for this spot.
Sunday the 6th is a little better but still marginal. The swell drops to 10ft, but the wind is cross-shore, and we're looking at a 16-second period. That's a very long period groundswell, which can be tricky at a breakwater, making it a bit too straight and tricky. The energy is still very strong (4990).
Now, we start to see a real window opening up. Monday the 7th is your first real pick of the period. The swell drops to a much more manageable 4ft to 5ft from the WSW, and the wind goes light and cross-off. The wave energy is moderate (925-1364), and the description says "clean." That's a good sign. The 14-second period will give it some nice push.
Then Tuesday the 8th morning is a standout for the glassy conditions. The wind is dead calm, totally glassy. The swell is only 3ft, and the energy is low (409), but it'll be clean. However, the afternoon turns into a poor onshore wind and a short, weak period of 7 seconds.
Wednesday the 9th morning is another glassy session with a 5ft swell from the west at 9 seconds. It's a bit short period, but with the glassy conditions, it'll be fun. The energy is moderate (580).
Thursday the 10th morning is the first real highlight. We've got a 8ft swell from the west, a 12-second period, and a clean cross-off wind. The energy is strong (1963), and the forecast says "excellent surf conditions for experienced surfers." It's a bit sizey, so not for the beginners. This is a strong candidate for the best on offer.
After that, things get properly big. Friday the 11th through Saturday the 12th sees a massive 13ft to 15ft West swell with a 17-19 second period. The energy is astronomical (9483-14462). The wind is light, but the swell is just too big for this break. This is strictly for experts, and even then, it's a monster.
We get a bit of a reprieve on Sunday the 13th morning. The swell backs down to 10ft from the west, with a 13-second period and glassy conditions. The energy is still very strong (3584), but it's glassy. The forecast says "excellent surf conditions for experienced surfers." This is another true standout.
Monday the 14th is a good one too. The swell drops to 6ft, with a 14-second period and a clean cross-off wind. The energy is moderate (1505). It's a solid, clean, more manageable day.
The rest of the forecast is a mixed bag. We get some glassy mornings with smaller swells, but also some big, blown-out days. The 16th of September sees a massive 16ft swell, again too big. The 17th of September morning is another glassy, experienced-surfer-only day with a 10ft, 13-second swell and strong energy (3346).
The long-range stuff into the 18th and 19th is all big and onshore or glassy but massive. It's all a bit of a gamble, but the potential is there for the experienced crew.
Bottom line: The standouts are Monday the 7th and Thursday the 10th morning for the first week, and Sunday the 13th morning for the second week. All of these offer clean conditions and a decent, rideable swell. For the rest, it's either too big, too windy, or too small. Keep an eye on the forecast, because this one is going to swing between epic and angry.
Rusty.
Short Range ForecastHeavy rain (total 119mm), heaviest during Sun afternoon. Very mild (max 13°C on Sat night, min 9°C on Sun night). Winds decreasing (fresh winds from the W on Fri morning, light winds from the WNW by Sat night). | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Mon morning. Very mild (max 12°C on Tue morning, min 6°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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) | WNW 10 | W 10 | W 12 | W 14 | W 15 | W 16 | W 16 | W 16 | W 15 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | W 12 | WSW 11 | W 12 | W 11 | W 11 | W 9 | W 9 | W 20 |
Wave Graph | |||||||||||||||||||||
3717 | 4402 | 6178 | 6099 | 6052 | 6674 | 3380 | 2265 | 1885 | 850 | 588 | 222 | 367 | 336 | 202 | 504 | 778 | 326 | 1003 | 1581 | 17222 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | off | cross-off | cross-off | glassy | glassy | on | cross-off | off | cross | cross-on | cross-off | cross-on | cross-off |
High Tide | 3:37PM2.83m | 4:20AM2.79m | 4:56PM2.74m | 5:44AM2.74m | 6:22PM2.77m | 7:02AM2.80m | 7:37PM2.91m | 8:11AM2.94m | 8:39PM3.09m | 9:07AM3.09m | 9:29PM3.26m | 9:56AM3.21m | 10:14PM3.38m | ||||||||
Low Tide | 9:22AM1.06m | 9:58PM1.12m | 10:34AM1.20m | 11:22PM1.18m | 12:00PM1.23m | 00:46AM1.10m | 1:21PM1.12m | 1:57AM0.94m | 2:26PM0.94m | 2:54AM0.74m | 3:19PM0.74m | 3:44AM0.57m | 4:05PM0.58m | ||||||||
6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:46 | — | — | |
— | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — | |
mm | 4 | 3 | 4 | 4 | 3 | 15 | 16 | 39 | 31 | 10 | 2 | — | — | — | — | — | — | 1 | 5 | 5 | — |
Temp °C | 11 | 10 | 10 | 12 | 12 | 13 | 12 | 13 | 11 | 8 | 10 | 9 | 12 | 12 | 8 | 12 | 12 | 10 | 10 | 9 | 6 |
Feels °C | 3 | 2 | 2 | 7 | 6 | 8 | 6 | 8 | 8 | 2 | 7 | 7 | 11 | 10 | 6 | 10 | 9 | 8 | 6 | 3 | 2 |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 14 | W 15 | W 16 | W 16 | W 16 | W 15 | NW 9 | WSW 14 | NNW 8 | WSW 12 | W 12 | WSW 11 | W 12 | W 11 | W 11 | W 9 | W 21 | W 20 |
— | — | — | 6099 | 6052 | 6674 | 3380 | 2265 | 1885 | 357 | 588 | 171 | 367 | 336 | 202 | 504 | 778 | 326 | 1003 | 1040 | 17222 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | NNW 9 | — | — | — | — | WNW 9 | WSW 14 | NW 9 | WSW 10 | NNW 8 | NNW 8 | WNW 9 | W 9 | WSW 19 | W 18 | W 18 | — | — |
— | — | — | 96 | — | — | — | — | 641 | 850 | 190 | 135 | 94 | 80 | 64 | 181 | 118 | 156 | 227 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | N 8 | N 8 | N 8 | WSW 13 | NW 9 | W 11 | NNW 8 | NW 8 | NW 8 | W 26 | — | — | — |
— | — | — | — | — | — | — | — | 239 | 72 | 134 | 222 | 36 | 82 | 40 | 33 | 17 | 13 | — | — | — | |
Wind waves Height (m) Direction Period (s) | WNW 10 | W 10 | W 12 | — | — | — | WNW 9 | NW 9 | — | ESE 3 | ESE 3 | — | — | — | — | — | — | NW 4 | — | W 9 | — |
3717 | 4402 | 6178 | — | — | — | 1399 | 2033 | — | 5 | 3 | — | — | — | — | — | — | 57 | — | 1581 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 210 | 210 | 201 | 190 | 190 | 180 | 169 | 153 | 0 | 8 | 0 | 0 | 0 | 48 | 0 | 0 | 122 | 85 | 136 | 216 | 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 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.










