Surf Forecasts:
Cobden Breakwater surf forecast from 1 Sep 2026:
- Best quality surf: Saturday 5 Sep, 3AM (local time) - 13ft (4.0m), 13s period, W swell with onshore winds.
- Most powerful swell: Monday 7 Sep, 9AM (local time) - 16ft (5.0m), 14s period, W swell with 9,964 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 9AM (local time) - 6.5ft (2.0m), 13s 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 Wednesday (Sep 02) at 9AM. The primary swell is predicted to be 2.0m and 13s period. 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 5.0m 14s and forecast to arrive on Monday (Sep 07) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Wed 2nd Sep) | 6.5ft (2.0m) 13s |
| Best Surf | 3AM (Sat 5th Sep) | 13ft (4.0m) 13s |
| Most Powerful | 9AM (Mon 7th Sep) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for Cobden Breakwater over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s have a look at what’s in store for the next couple of weeks. We’ve only got one spot on the radar, Cobden Breakwater, and it’s a bit of a mixed bag. The water temp is sitting at 55°F, and the anomaly shows it’s pretty much bang on normal for this time of year, so nothing wild there.
The first few days are a write-off, honestly. The swell is just too meaty. Tuesday morning (1st September) we’re looking at a 13ft swell from the west with a period of 11 seconds, and the combined energy is a massive 4216. That’s a lot of power, but it’s too big for this break, and the cross-on wind is making it a choppy mess. The afternoon is similar, just a touch smaller at 12ft. Wednesday morning (2nd September) is the first real standout. We’ve got a 7ft west swell, period of 13 seconds, and the wind is dead calm – glassy. The combined energy is still high at 1422, but for experienced surfers, the conditions are excellent. That’s your window. The afternoon gets ruined by a 16 mph cross-on wind and rain. Thursday (3rd September) is a write-off with marginal conditions and cross-shore winds.
Friday (4th September) is a total mess – onshore gales at 25 mph with 16ft waves. That’s more a kite-surfing show than a paddle session. Saturday (5th September) morning is glassy again with an 12ft swell, but that’s still too big for the break. The afternoon cleans up with a cross-off wind, but same problem – too much water moving. Sunday (6th September) is marginal with a 8ft swell and a long 16-second period, but the wind is turning onshore in the arvo.
Now, Monday (7th September) morning is clean with a cross-off breeze, but the swell is a massive 16ft – that’s just for the experts, and at Cobden Breakwater, it’s likely too big. The energy reading is 9964, which is absolutely pumping. Tuesday (8th September) morning is the next real gem. We’ve got a 7ft west swell, period of 11 seconds, a clean cross-off breeze, and the energy is down to 1043. Excellent conditions for experienced surfers again. The afternoon is a bit smaller at 6ft, but the wind goes onshore, so it’s not as good.
We get a lull on Wednesday (9th September) with a tiny 3ft swell and a 12-second period, but the wind is offshore, so it’s clean. Not much to work with. Thursday (10th September) morning is a cracker – 4ft from the west-southwest, a 20-second period, light offshore wind, and the energy is 1709. That’s excellent for experienced surfers. The afternoon is even better with a 5ft west swell, same long period, and a light cross-off breeze. Energy is 2648. That’s a solid afternoon.
Friday (11th September) is the pick of the second week. Morning has a 8ft west swell, a 17-second period, and a 6 mph offshore wind – clean and powerful, with an energy reading of 3740. That’s a big groundswell, and for a point break or reef, it would be epic, but at a breakwater, the long period might make it a bit straight. Still, for experienced surfers, it’s a top call. The afternoon is similar but a touch smaller. Saturday (12th September) and Sunday (13th September) are marginal, though Sunday morning is glassy with a 5ft, 16-second swell – clean but small.
Monday (14th September) morning brings an 8ft west swell with a 9-second period and glassy conditions. That’s a bit of a punchy, short-period swell, so it’ll be fun for the crew who can handle it. The energy is 1656. Tuesday (15th September) morning is clean with a 8ft west-southwest swell and a cross-off breeze. The 16th (Wednesday) morning is another clean, offshore session with a 7ft west swell, 16-second period, and energy of 1960. That’s a nice way to end the outlook.
So, to sum it up: the best on offer is Wednesday morning (2nd September) for the glassy, 7ft west swell, and Friday (11th September) for the bigger, clean groundswell. Keep your eyes on those windows. The rest of the time, it’s either too big, too windy, or too small.
Rusty.
Short Range ForecastHeavy rain (total 45mm), heaviest during Thu night. Very mild (max 14°C on Thu morning, min 8°C on Tue morning). Winds increasing (calm on Wed morning, strong winds from the W by Thu night). | Days 4-6 Weather SummaryHeavy rain (total 79mm), heaviest during Sun morning. Very mild (max 12°C on Sat morning, min 6°C on Sun night). Winds decreasing (strong winds from the W on Fri afternoon, calm by Sat morning). | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 10 | W 13 | W 13 | W 14 | W 8 | W 9 | WNW 9 | WSW 14 | W 10 | W 10 | W 12 | W 14 | W 14 | W 16 | W 16 | WNW 11 | W 15 | W 14 | W 14 | W 12 |
Wave Graph | |||||||||||||||||||||
4216 | 2432 | 824 | 1422 | 1686 | 845 | 830 | 641 | 1030 | 4614 | 4420 | 4829 | 4773 | 4432 | 4425 | 3048 | 2035 | 1835 | 9964 | 5516 | 1797 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | glassy | cross-on | cross-on | cross-on | cross | cross-off | on | on | on | glassy | cross-off | cross | cross-off | on | cross-off | cross-off | cross-on | glassy |
High Tide | 1:07PM3.21m | 1:25AM3.23m | 1:48PM3.10m | 2:10AM3.09m | 2:36PM2.97m | 3:07AM2.93m | 3:37PM2.83m | 4:20AM2.79m | 4:56PM2.74m | 5:44AM2.74m | 6:22PM2.77m | 7:02AM2.80m | 7:37PM2.91m | ||||||||
Low Tide | 7:15PM0.73m | 7:40AM0.75m | 7:58PM0.84m | 8:26AM0.90m | 8:50PM0.99m | 9:22AM1.06m | 9:58PM1.12m | 10:34AM1.20m | 11:22PM1.18m | 12:00PM1.23m | 00:46AM1.10m | 1:21PM1.12m | 1:57AM0.94m | ||||||||
7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | |
— | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | |
mm | — | 2 | 3 | — | 2 | 14 | 2 | 2 | 20 | 5 | 4 | 6 | 2 | 1 | 11 | 40 | 5 | 5 | — | — | — |
Temp °C | 9 | 9 | 10 | 12 | 13 | 13 | 14 | 14 | 13 | 11 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 9 |
Feels °C | 4 | 5 | 6 | 9 | 8 | 9 | 13 | 12 | 10 | 3 | 1 | 3 | 9 | 7 | 8 | 8 | 8 | 10 | 8 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | — | — | W 13 | W 13 | — | W 15 | W 9 | WNW 9 | WSW 14 | — | — | — | W 14 | W 14 | W 16 | W 16 | WNW 11 | NW 10 | W 14 | W 14 | W 12 |
— | — | 824 | 1422 | — | 157 | 830 | 641 | 1030 | — | — | — | 4773 | 4432 | 4425 | 3048 | 2035 | 1224 | 9964 | 5516 | 1797 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 15 | WSW 14 | — | — | — | — | — | NNW 9 | — | — | W 16 | W 15 | — | — | W 18 |
— | — | — | — | — | — | 109 | 443 | — | — | — | — | — | 138 | — | — | 1651 | 1835 | — | — | 56 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 9 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 394 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 11 | W 10 | W 8 | — | W 14 | W 8 | — | — | NW 7 | W 10 | W 10 | W 12 | — | — | NNW 8 | NNW 8 | — | — | — | — | — |
4216 | 2432 | 555 | — | 1686 | 845 | — | — | 301 | 4614 | 4420 | 4829 | — | — | 125 | 764 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 153 | 156 | 153 | 0 | 190 | 169 | 172 | 86 | 190 | 210 | 210 | 201 | 0 | 136 | 136 | 202 | 190 | 0 | 12 | 454 | 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.











