
Surf Forecasts:
Cobden Breakwater surf forecast from 9 Aug 2026:
- Best quality surf: Saturday 15 Aug, 12PM (local time) - 8ft (2.5m), 17s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 12PM (local time) - 8ft (2.5m), 17s period, WSW swell with 3,568 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 6PM (local time) - 3.5ft (1.0m), 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 Monday (Aug 10) at 6PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 1.0m and 6s. 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 17s and forecast to arrive on Saturday (Aug 15) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 9s period and expected on Wednesday (Aug 12) at 9PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 10th Aug) | 3.5ft (1.0m) 14s |
| Best Surf | 12PM (Sat 15th Aug) | 8ft (2.5m) 17s |
| Most Powerful | 12PM (Sat 15th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.
The Lowdown
Alright, let’s get into it. This is Rusty.
We’ve got a solid 16-day window here at Cobden Breakwater, but it’s not a straight line to glory. The first couple of days are pretty average, with some rain and choppy conditions to deal with. From Wednesday the 12th onward though, things start to shape up properly. There are a couple of standout sessions, especially if you’re an experienced surfer looking for some grunt. The water temp is sitting right around 54°, which is about average for this time of year, so no surprises there.
The opening on Sunday the 9th is a write-off. You’ve got 6.6ft swell, but it’s from the W with a short 9-second period, cross-on wind from the WNW at 12 mph, and the energy reading is 1351 – moderate to strong – but the conditions are just poor. Not worth paddling out.
Monday the 10th improves slightly but stays marginal. Morning has 3.3ft swell from the W with a long 15-second period (that’s groundswell), light cross-on from the SW at 3 mph, energy at 633. Afternoon is similar. Both sessions are just okay, nothing to get excited about.
Tuesday the 11th sees the wind turn offshore from the E at 6 mph in the morning. Swell is small at 2.6ft from the WSW, period 13 seconds, energy 241. Clean and glassy in the morning with some clouds. Afternoon drops even smaller to 1.6ft, but still clean. Good for a longboard session.
Wednesday the 12th is where it kicks off. Morning is clean with offshore E wind at 6 mph, 2.0ft swell from the W, period 16 seconds. But the afternoon is the first real standout: 8.2ft from the NNW, period 10 seconds, energy hits 1657, and the wind is offshore from the ENE at 6 mph. Clean, powerful, and punchy – excellent for experienced surfers. Beginners should sit this one out.
Thursday the 13th morning: 5.2ft from the WNW, period 10 seconds, cross-off wind from the E at 6 mph, energy 711. Very good. Afternoon turns glassy with NNE wind at 3 mph, 4.3ft from the WNW, period 10 seconds, energy 471. That glass is a major positive – clean lines.
Friday the 14th morning is clean with 2.6ft from the WSW, period 14 seconds, cross-off SE wind at 6 mph, energy 381. Good small-wave session. Afternoon fades into marginal conditions.
Now, Saturday the 15th is the big one. This is the best on offer across the whole 16-day window. Morning: 5.9ft swell from the WSW, long 17-second period, cross-off SE wind at 9 mph, energy 2454 – strong energy. Afternoon pushes even higher: 8.2ft from the WSW, still 17 seconds, cross-off SE at 6 mph, energy hits 3486. That’s very strong wave energy. It’s powerful, clean, and long-period groundswell – think long lines, better at a breakwater like this. Only for experienced surfers though, it’s big.
Sunday the 16th keeps the quality high. Morning: 6.6ft from the W, 16-second period, cross-off ESE at 9 mph, energy 2036. Afternoon: 4.3ft from the WSW, 15-second period, cross-off SE at 9 mph, energy 1258. Both are clean and excellent.
Monday the 17th morning is another strong session: 5.9ft from the W, period 10 seconds, cross-off ESE at 9 mph, energy 1091. Afternoon goes onshore from the SW at 6 mph, 3.3ft from the W, period 13 seconds – turns marginal.
Tuesday the 18th morning is clean with 3.6ft from the WSW, period 13 seconds, cross-off ESE at 6 mph, energy 476. Good, steady surf.
Wednesday the 19th morning: 3.3ft from the WSW, period 13 seconds, cross-off ESE at 6 mph, energy 560. Very good. Afternoon goes onshore from the W at 3 mph, 3
Short Range ForecastHeavy rain (total 23mm), heaviest during Sun afternoon. Very mild (max 13°C on Tue afternoon, min 7°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Wed night. Very mild (max 16°C on Fri afternoon, min 10°C on Wed afternoon). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 9 | W 16 | W 15 | W 14 | WSW 13 | WSW 13 | W 18 | W 17 | W 16 | NNW 10 | NW 10 | WNW 10 | WNW 10 | WSW 16 | WSW 14 | WSW 14 | WSW 18 | WSW 17 | WSW 17 | WSW 16 |
Wave Graph | ||||||||||||||||||||
621 | 509 | 435 | 423 | 295 | 222 | 167 | 280 | 179 | 1556 | 616 | 530 | 346 | 337 | 280 | 198 | 929 | 1995 | 3486 | 2851 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-off | off | cross-off | cross-off | off | off | off | cross-off | glassy | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:43PM2.92m | 8:17AM2.99m | 8:48PM3.11m | 9:19AM3.15m | 9:44PM3.30m | 10:13AM3.29m | 10:33PM3.44m | 11:01AM3.37m | 11:19PM3.51m | 11:44AM3.39m | 00:02AM3.49m | 12:26PM3.33m | 00:43AM3.40m | |||||||
Low Tide | 2:02AM0.96m | 2:35PM0.95m | 3:04AM0.76m | 3:33PM0.76m | 3:58AM0.58m | 4:23PM0.60m | 4:47AM0.45m | 5:09PM0.50m | 5:33AM0.40m | 5:52PM0.47m | 6:16AM0.43m | 6:33PM0.52m | ||||||||
— | — | 7:35 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:28 | — | — | 7:28 | — | — | |
5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | |
mm | 8 | 12 | 2 | — | — | — | — | — | 1 | 3 | 8 | — | 1 | — | — | — | — | — | — | — |
Temp °C | 12 | 11 | 12 | 12 | 10 | 11 | 13 | 10 | 10 | 10 | 11 | 13 | 15 | 12 | 14 | 16 | 13 | 14 | 14 | 10 |
Feels °C | 7 | 7 | 10 | 10 | 9 | 8 | 11 | 8 | 7 | 7 | 8 | 11 | 15 | 11 | 12 | 14 | 11 | 11 | 11 | 7 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | NNW 10 | W 15 | W 6 | WSW 13 | WSW 13 | WSW 13 | N 7 | N 8 | NNW 10 | N 9 | WNW 10 | WNW 10 | WNW 10 | W 9 | WSW 14 | WSW 18 | WSW 17 | WSW 17 | WSW 16 |
391 | 322 | 435 | 112 | 295 | 222 | 125 | 131 | 138 | 1556 | 524 | 530 | 346 | 245 | 101 | 198 | 929 | 1995 | 3486 | 2851 | |
Swell 2 Height (m) Direction Period (s) | W 14 | W 16 | N 9 | W 14 | W 6 | N 8 | N 8 | W 17 | W 16 | WSW 15 | NW 10 | N 8 | N 8 | N 7 | WSW 14 | W 8 | W 7 | W 9 | — | — |
181 | 509 | 169 | 423 | 47 | 49 | 46 | 280 | 179 | 71 | 616 | 289 | 202 | 83 | 280 | 66 | 104 | 459 | — | — | |
Swell 3 Height (m) Direction Period (s) | W 18 | — | — | N 9 | N 8 | W 6 | W 18 | — | WNW 13 | W 20 | WSW 14 | WSW 15 | W 13 | WSW 16 | N 7 | NW 8 | NNE 6 | — | — | — |
158 | — | — | 101 | 71 | 19 | 167 | — | 69 | 30 | 67 | 181 | 125 | 337 | 31 | 23 | 3 | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 9 | W 7 | W 7 | — | — | — | — | — | E 3 | — | — | — | — | — | — | — | — | — | — | — |
621 | 429 | 198 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 168 | 153 | 48 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in West Coast South Island | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
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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.











