
Surf Forecasts:
Cobden Breakwater surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 9PM (local time) - 8ft (2.5m), 10s period, NNW swell with offshore winds.
- Most powerful swell: Saturday 15 Aug, 6AM (local time) - 7.5ft (2.3m), 16s period, W swell with 2,668 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 9PM (local time) - 8ft (2.5m), 10s period with NNW 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 Wednesday (Aug 12) at 9PM. The primary swell is predicted to be 2.5m and 10s period with a secondary swell of 1.2m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cobden Breakwater in the next 16 days are 2.3m 16s and forecast to arrive on Saturday (Aug 15) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 9s period and expected on Thursday (Aug 13) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 12th Aug) | 8ft (2.5m) 10s |
| Best Surf | 9PM (Wed 12th Aug) | 8ft (2.5m) 10s |
| Most Powerful | 6AM (Sat 15th Aug) | 7.5ft (2.3m) 16s |
Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.
The Lowdown
Alright, let’s talk about the next block of surf. First real action is on Wednesday, August 12th, and it’s a solid start. We’re looking at Cobden Breakwater, a breakwater setup that’s fairly consistent and exposed to the swell. The water temp is about 54°, which is normal for this time of year.
Wednesday morning kicks off with a clean 3ft swell from the NW, with a 13-second period. The wind is offshore from the east at 9 mph, so it’s going to be tidy. The combined energy is moderate (432). Later that afternoon, the swell jumps up to 8ft from the NNW, with an 11-second period. That’s a big step up—over 8ft, so it’s definitely for experienced surfers only. The wind stays light offshore, and the energy is strong (1515). This is a standout session for the week if you’ve got the skills.
Thursday the 13th drops back to a cleaner 6ft from the WNW, with a 10-second period. The morning is clean with a light offshore breeze, and the energy is a solid 730. Thursday afternoon stays similar at 6ft, but the wind swings to a cross-off from the NNE, still light at 6 mph. It’s good, but not as sharp as the morning.
Friday the 14th is a mixed bag. The morning has a small 3ft WSW swell, but the period is a long 15 seconds, which is proper groundswell. The energy is moderate (710). Wind is cross-off from the ESE, so it’s clean. The afternoon, though, gets messy. The swell bumps up to 4ft from the west, with a very long 19-second period, but the wind is onshore from the SW at 9 mph. That’s going to put a chop on it, and the energy is strong (1177), but it won’t be pretty.
Now, Saturday the 15th is the real gem. The morning is glassy—wind from the SE at only 3 mph, and the swell is a solid 8ft from the west, with a 15-second period. The energy is pumping at 2469, so it’s strong. That’s a big, clean, powerful swell, but again, over 8ft, so it’s for the experienced crew. Standout session for sure. The afternoon is similar in size, but the wind turns onshore from the WSW, making it a bit of a mess.
Sunday the 16th still has some good options. The morning has a 7ft west swell, 15-second period, with a cross-off wind from the ESE at 9 mph. Energy is strong (1910). It’s clean and powerful, but the wind is a bit breezy. The afternoon drops to 6ft, but the wind is onshore again.
Monday the 17th is a step down. The morning is 5ft from the west, 14-second period, with a light offshore from the ENE. Energy is moderate (925). It’s clean, but not as exciting. The afternoon gets a bit cross-shore and messy.
Tuesday the 18th is small again, with a 3ft WSW swell, 14-second period, and a cross-off wind. Clean, but not much push.
Wednesday the 19th through Friday the 21st stays small, with waves around 3ft to 4ft. The winds are mostly light and offshore or glassy, so it’s clean, but the energy is low. The period on these is long (14-16 seconds), so it’s groundswell, but without much height, it’ll be a bit fat.
Saturday the 22nd and Sunday the 23rd are real quiet. Swells drop to 2ft to 2ft, with weak energy. The wind is mostly manageable, but the surf is just too small to get excited about.
Monday the 24th and Tuesday the 25th are tiny again, with 2ft to 2ft waves. The period is still long, but there’s no power.
Then, on Wednesday the 26th, we get a spike. The morning has a 6ft swell from the NNW, but the period is a short 7 seconds. That’s windswell, and it’s glassy to start, so it might be a bit lumpy but fun. The energy is moderate (462). The afternoon is similar but with a cross-shore wind.
Finally, Thursday the 27th has a 5ft WNW swell in the morning, 8-second period, with a light offshore. Energy is moderate (477). The afternoon jumps to 5ft from the west, with a 12-second period, and the wind is cross-off. The energy is strong (1165), and it’s clean. That’s a solid finish to the run.
Overall, the standout sessions are clearly Wednesday afternoon the 12th (8ft, experienced only) and Saturday morning the 15th (8ft, glassy, powerful). If you’re not in that expert bracket, the Wednesday morning or Thursday morning are your best bets for clean, fun waves.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Wed night. Very mild (max 14°C on Thu afternoon, min 8°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 12°C on Sat afternoon, min 4°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 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) | NW 13 | NNW 11 | NW 11 | WNW 10 | WNW 11 | WNW 10 | WSW 15 | W 19 | W 17 | W 15 | W 15 | W 15 | W 15 | WSW 14 | WSW 14 | W 14 | WSW 14 | WSW 14 | WSW 14 | W 13 | W 16 |
Wave Graph | |||||||||||||||||||||
253 | 1409 | 415 | 565 | 634 | 433 | 284 | 1059 | 2345 | 2469 | 2437 | 2295 | 1910 | 1554 | 622 | 925 | 788 | 407 | 304 | 361 | 267 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | cross-off | on | cross | glassy | on | cross-off | cross-off | on | cross-off | off | cross | cross-off | cross-off | cross-on | cross-off |
High Tide | 10:13AM3.29m | 10:33PM3.44m | 11:01AM3.37m | 11:19PM3.51m | 11:44AM3.39m | 00:02AM3.49m | 12:26PM3.33m | 00:43AM3.40m | 1:05PM3.23m | 1:23AM3.24m | 1:44PM3.08m | 2:05AM3.05m | 2:24PM2.92m | 2:49AM2.87m | |||||||
Low Tide | 4:23PM0.60m | 4:47AM0.45m | 5:09PM0.50m | 5:33AM0.40m | 5:52PM0.47m | 6:16AM0.43m | 6:33PM0.52m | 6:57AM0.54m | 7:13PM0.64m | 7:37AM0.70m | 7:53PM0.81m | 8:18AM0.89m | 8:35PM1.00m | ||||||||
7:31 | — | — | 7:31 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:24 | — | — | |
— | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | |
mm | — | 5 | 9 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 10 | 11 | 13 | 14 | 12 | 13 | 13 | 10 | 11 | 12 | 7 | 10 | 11 | 7 | 10 | 10 | 10 | 11 | 11 | 9 |
Feels °C | 10 | 7 | 8 | 12 | 13 | 11 | 11 | 10 | 8 | 9 | 9 | 2 | 7 | 7 | 4 | 8 | 8 | 8 | 9 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | N 8 | NNW 11 | N 9 | WNW 10 | WNW 11 | WNW 10 | WNW 9 | W 19 | W 17 | W 15 | W 15 | W 15 | W 15 | WSW 14 | WSW 14 | W 14 | WSW 14 | WSW 14 | WSW 8 | WSW 8 | WSW 9 |
190 | 1409 | 691 | 565 | 634 | 433 | 238 | 1059 | 2345 | 2469 | 2437 | 2295 | 1910 | 1554 | 622 | 925 | 788 | 407 | 202 | 176 | 232 | |
Swell 2 Height (m) Direction Period (s) | NW 13 | WSW 14 | NW 11 | N 8 | N 8 | WSW 16 | WSW 15 | W 8 | W 5 | — | — | — | — | — | WSW 9 | — | — | W 8 | WSW 14 | W 13 | WSW 13 |
253 | 70 | 415 | 346 | 114 | 337 | 284 | 86 | 25 | — | — | — | — | — | 259 | — | — | 103 | 304 | 361 | 236 | |
Swell 3 Height (m) Direction Period (s) | W 16 | WSW 19 | NNW 10 | W 15 | WSW 17 | N 7 | W 19 | NW 8 | NW 8 | — | — | — | — | — | — | — | — | W 18 | W 18 | — | W 16 |
179 | 36 | 241 | 165 | 235 | 24 | 188 | 32 | 14 | — | — | — | — | — | — | — | — | 57 | 25 | — | 267 | |
Wind waves Height (m) Direction Period (s) | E 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 48 | 0 | 0 | 48 | 0 | 0 | 85 | 0 | 0 | 156 | 0 | 0 | 12 | 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.











