
Surf Forecasts:
Cobden Breakwater surf forecast from 12 Sep 2026:
- Best quality surf: Friday 18 Sep, 9AM (local time) - 8ft (2.5m), 15s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 9AM (local time) - 8ft (2.5m), 15s period, W swell with 3,093 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 9PM (local time) - 4.5ft (1.4m), 16s period with WSW 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 Sunday (Sep 13) at 9PM. The primary swell is predicted to be 1.4m and 16s period with a secondary swell of 2.2m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cobden Breakwater in the next 16 days are 2.5m 15s and forecast to arrive on Friday (Sep 18) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 12s period and expected on Tuesday (Sep 15) at 12PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 13th Sep) | 4.5ft (1.4m) 16s |
| Best Surf | 9AM (Fri 18th Sep) | 8ft (2.5m) 15s |
| Most Powerful | 9AM (Fri 18th Sep) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.
The Lowdown
Alright, mates, Rusty here. Let’s get straight into the surf forecast for Cobden Breakwater. It’s a bit of a wild ride ahead, with some huge, powerful swells and a few real clean windows in between.
The water’s sitting at 54°F, which is about normal for this time of year.
The action starts this Saturday, the 12th, and it's a no-go. There’s a massive 13ft W swell, but it’s just way too big for this break. The wave energy is strong at (3912), but with 20 km/h onshore winds, it will be a full-blown mess. Saturday afternoon is even bigger, with a long 16-second period and even more energy (7029). Leave it alone.
Sunday the 13th settles to a more manageable 5ft, but the wind is still on it and conditions are marginal. Not worth the drive.
Monday the 14th isn't much better. The swell is around 7ft but the forecast is questionable. You're not missing out.
Now, here’s the first real standout. Tuesday morning, the 15th. The swell drops to a clean 4ft from the WSW, and it goes glassy with a slight air. The energy is weak (514), but for this break, that could be perfect. It’s a small, clean day with the comment “expect very good surf conditions.” Tuesday afternoon stays glassy at 4ft. That’s your first window.
Wednesday the 16th picks up to 5ft in the morning with a clean cross-off breeze, but the afternoon gets messier as the swell jumps to 7ft. It’s okay, but not the standout.
Thursday the 17th is a write-off. Rain and onshore winds pick up to 25 km/h in the afternoon. Poor surf.
Now, look at Friday the 18th. This is where it gets good. The morning has a clean 8ft W swell with a 15-second period, and a light ESE cross-off wind. The comment says “excellent surf conditions for experienced surfers.” The energy is solid at (3093). This is for the crew who know what they’re doing. Saturday the 19th is another cracker – 7ft of clean W swell, glassy conditions, and the comment is again “excellent.”
The energy is moderate at (1709), but the surface will be perfect. Sunday the 20th pushes it up to a solid 10ft with a clean ESE wind in the morning. This is big, powerful, and only for experts. The energy is strong (3459). Monday the 21st backs off slightly to 8ft with morning glass, another good one for experienced surfers.
The rest of the week fades a bit. Tuesday the 22nd is blown out. Wednesday the 23rd brings another solid 10ft W swell, this time with a strong energy reading (3135) and a clean cross-off ESE wind in the morning. That’s another big day for the experienced crew.
The final week gets more mixed. Thursday the 24th has a clean 8ft in the morning. Friday the 25th is back to glassy conditions with a 7ft WSW swell in the morning. Saturday the 26th has glassy 6ft surf in the morning, and Sunday the 27th brings up the rear with a smaller, glassy 4ft. That last Sunday looks like a nice, clean finisher.
So, the two big standouts are Friday the 18th and Sunday the 20th – they’ve got the size, the period, and the clean winds. The Tuesday the 15th is your smaller, more user-friendly window.
This is Rusty, signing off.
Short Range ForecastModerate rain (total 11mm), heaviest on Sat night. Very mild (max 12°C on Sun morning, min 9°C on Sat afternoon). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 40mm), heaviest during Wed night. Very mild (max 13°C on Wed morning, min 4°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 11 | W 16 | W 16 | W 16 | W 10 | WSW 15 | W 15 | WSW 14 | W 14 | WSW 14 | WSW 14 | W 9 | W 10 | W 11 | WSW 14 | W 13 | W 9 | W 16 | W 15 | W 15 | W 15 |
Wave Graph | |||||||||||||||||||||
3912 | 7029 | 2141 | 1347 | 1145 | 953 | 1910 | 1382 | 951 | 514 | 471 | 168 | 472 | 1086 | 1206 | 1609 | 893 | 1131 | 3093 | 2612 | 1963 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | on | on | glassy | glassy | glassy | cross-on | cross-off | cross-off | cross-on | cross-on | on | glassy | cross-off | cross | glassy |
High Tide | 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 | 3:15PM2.61m | ||||||||
Low Tide | 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 | 9:05AM1.25m | 9:38PM1.32m | ||||||||
6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | |
— | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:25 | — | — | 6:27 | — | |
mm | — | — | 4 | 2 | 2 | 1 | 2 | — | — | — | — | 3 | 1 | 4 | 29 | 2 | 1 | — | — | — | — |
Temp °C | 10 | 10 | 10 | 12 | 12 | 11 | 12 | 12 | 10 | 12 | 12 | 12 | 13 | 13 | 11 | 10 | 10 | 8 | 11 | 11 | 9 |
Feels °C | 5 | 5 | 6 | 9 | 8 | 10 | 9 | 9 | 8 | 11 | 11 | 11 | 9 | 10 | 7 | 8 | 4 | 5 | 8 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | W 11 | — | W 16 | W 16 | W 10 | W 9 | W 15 | WSW 14 | W 14 | WSW 14 | WSW 14 | W 9 | W 10 | W 11 | WSW 14 | W 13 | W 14 | W 9 | W 15 | W 15 | W 15 |
3912 | — | 2141 | 1347 | 1134 | 715 | 1910 | 1382 | 951 | 514 | 471 | 168 | 472 | 1086 | 1206 | 1609 | 725 | 982 | 3093 | 2612 | 1963 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 16 | WSW 15 | — | — | — | — | N 12 | WSW 13 | W 18 | — | WNW 9 | NW 8 | — | W 16 | — | — | — |
— | — | — | — | 1145 | 953 | — | — | — | — | 3 | 98 | 6 | — | 465 | 129 | — | 1131 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | W 16 | W 9 | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | — | — | — | — |
— | 7029 | 1163 | 1064 | — | — | — | — | — | — | — | — | — | — | — | — | 893 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 122 | 168 | 122 | 153 | 122 | 0 | 48 | 156 | 0 | 0 | 0 | 85 | 0 | 86 | 122 | 85 | 201 | 0 | 0 | 206 | 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.










