
Surf Forecasts:
Cobden Breakwater surf forecast from 4 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, 3AM (local time) - 15ft (4.5m), 19s period, W swell with 13,343 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 19s and forecast to arrive on Friday (Sep 11) at 3AM. 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 | 3AM (Fri 11th Sep) | 15ft (4.5m) 19s |
Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s look at what’s coming for Cobden Breakwater.
The next few days are a write-off. Friday afternoon the 4th has a big 15ft swell from the west, but with a fresh cross-onshore wind it’s just lumpy, poor quality. Saturday the 5th isn’t much better – the swell is still 13ft from the west, and while the morning wind is lighter, it’s still cross-on, and the swell is way too big for this break. The afternoon turns ugly again with a fresh breeze. Sunday the 6th sees the swell drop to around 7ft, but it’s rain and cross-shore winds of 22-22 mph, making it lumpy. Not worth paddling out.
Monday the 7th is the first glimmer of hope. The swell drops to 5ft from the west-southwest, and we get a clean, cross-off breeze from the east at 12-16 mph. The water temperature is about average for the time of year at 55°, nothing unusual. The waves are small but clean, and the combined energy (1200) is moderate. A solid option for a fun session, but not a standout.
Tuesday the 8th morning is clean again with a light east-southeast breeze, but the swell is only 5ft from the north-northwest, and the period is a short 9 seconds. The energy is low (518), so it’s not powerful. The afternoon swings to onshore, so the morning is the pick.
Now, Wednesday the 9th is where things get interesting. The morning has 6ft of west swell at 12 seconds, light offshore wind from the east, and clean conditions. The combined energy is moderate (1238). This is excellent for experienced surfers, but the swell is over 5ft, so it’s maybe too much for beginners. The afternoon is still 6ft but with a light cross-shore, not as good.
Thursday the 10th morning has 7ft of west swell, but the period is a short 7 seconds, so it’s weak. The wind is cross-off, so it’s clean, but the energy (1062) is moderate. The afternoon goes onshore and ugly.
The real standout is Friday the 11th. The morning shows a massive 13ft west swell with a very long period of 18 seconds, a light offshore breeze, and clean conditions. The combined energy is a huge 11688. This is a true groundswell, but it’s way too big for this break – the data says it’s too big. This is strictly for experts only, and the long period will make it break straight at this beach break, so it’s going to be a beast. The afternoon is still 12ft from the west, also too big.
The weekend of the 12th and 13th is mixed. Saturday the 12th is blown out with strong onshore winds. Sunday the 13th morning, however, is a gem: 6ft of west-southwest swell at 15 seconds, and glassy conditions with a light south-southwest breeze. The energy is moderate (2053), and it’s excellent for experienced surfers. The long period will make it better at a point or reef, but it’s clean.
Monday the 14th morning is another beautiful window: 8ft west swell at 15 seconds, light east-southeast cross-off breeze, and clean. The energy (2872) is moderate. This is another excellent, clean session for experienced surfers. Tuesday the 15th morning is similar with 7ft at 13 seconds, clean and cross-off.
The second week has a few more options. Wednesday the 16th morning has a 12ft west-southwest swell at 11 seconds, but it’s too big. Thursday the 17th is small and weak. The best of the week is Friday the 18th: morning and afternoon both have 8ft and 8ft of west-northwest swell at 10 seconds, with a clean, cross-off easterly breeze. The energy is moderate (1394 and 1177). This is excellent for experienced surfers. Saturday the 19th is small and onshore, so that’s the end.
So, the true standout is Friday the 11th, but only for experts. For the rest of us, Sunday the 13th, Monday the 14th, and Friday the 18th mornings are the best for clean, powerful waves. Crowds are rare here, so you’ll have space.
Rusty.
Short Range ForecastHeavy rain (total 117mm), heaviest during Sun afternoon. Very mild (max 14°C on Sun afternoon, min 8°C on Mon morning). Winds decreasing (fresh winds from the W on Fri afternoon, light winds from the NNW by Sat night). | Days 5-7 Weather SummaryHeavy rain (total 25mm), heaviest during Thu morning. Very mild (max 13°C on Tue afternoon, min 6°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 10 | W 12 | W 14 | W 15 | W 16 | W 16 | WSW 16 | W 15 | WSW 14 | WSW 14 | WSW 13 | NNW 9 | NNW 9 | W 9 | W 12 | W 11 | W 11 | W 7 | W 14 | W 19 |
Wave Graph | ||||||||||||||||||||
4220 | 6237 | 5871 | 6395 | 7050 | 2637 | 2523 | 1909 | 822 | 500 | 356 | 307 | 165 | 207 | 1065 | 882 | 588 | 483 | 2534 | 3253 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-off | off | cross | on | cross-off | 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 | 9:58PM1.12m | 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 | ||||||||
— | — | 6:54 | — | — | 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 | 3 | 5 | 2 | 3 | 22 | 15 | 34 | 22 | 11 | 6 | 7 | — | — | — | — | — | — | 12 | 8 | — |
Temp °C | 11 | 10 | 12 | 12 | 12 | 13 | 14 | 13 | 8 | 8 | 8 | 12 | 13 | 8 | 11 | 12 | 10 | 10 | 9 | 6 |
Feels °C | 3 | 2 | 7 | 6 | 8 | 7 | 10 | 12 | 3 | 3 | 4 | 9 | 10 | 5 | 9 | 10 | 8 | 6 | 2 | 3 |
Swell 1 Height (m) Direction Period (s) | — | — | W 14 | — | W 16 | W 16 | WSW 16 | WNW 9 | WNW 9 | WNW 9 | NNW 8 | NNW 9 | NNW 9 | W 9 | W 12 | W 11 | W 18 | WSW 13 | W 21 | W 11 |
— | — | 5871 | — | 7050 | 2637 | 2523 | 719 | 378 | 276 | 249 | 307 | 165 | 207 | 1065 | 882 | 156 | 229 | 416 | 3133 | |
Swell 2 Height (m) Direction Period (s) | — | — | NNW 9 | — | — | — | — | W 15 | WSW 14 | WSW 14 | WSW 13 | WSW 10 | WSW 11 | NNW 8 | NNW 8 | NNW 8 | — | WSW 16 | — | W 19 |
— | — | 96 | — | — | — | — | 1909 | 822 | 500 | 356 | 72 | 150 | 62 | 46 | 26 | — | 350 | — | 3253 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 8 | N 8 | N 8 | WNW 9 | W 12 | WSW 12 | WSW 21 | WSW 20 | WSW 19 | — | — | — | — |
— | — | — | — | — | — | — | 234 | 181 | 134 | 68 | 139 | 50 | 88 | 127 | 119 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 10 | W 12 | — | W 15 | — | WNW 9 | NW 9 | — | ESE 3 | E 3 | — | — | — | — | — | — | W 11 | W 7 | W 14 | — |
4220 | 6237 | — | 6395 | — | 2025 | 1967 | — | 4 | 3 | — | — | — | — | — | — | 588 | 483 | 2534 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 210 | 201 | 169 | 190 | 190 | 180 | 190 | 7 | 7 | 7 | 0 | 0 | 48 | 0 | 0 | 38 | 48 | 128 | 173 | 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.










