Surf Forecasts:
Cobden Beach - The Channel surf forecast from 20 Aug 2026:
- Best quality surf: Monday 24 Aug, 3AM (local time) - 16ft (5.0m), 14s period, W swell with cross-shore winds.
- Most powerful swell: Monday 24 Aug, 12AM (local time) - 18ft (5.5m), 14s period, W swell with 11,808 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 12PM (local time) - 3.5ft (1.0m), 14s period with W swell.
Best Forecast Surf Conditions for Cobden Beach - The Channel this week:
The surf forecast for Cobden Beach - The Channel over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 12PM. The primary swell is predicted to be 1.0m and 14s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cobden Beach - The Channel in the next 16 days are 5.5m 14s and forecast to arrive on Monday (Aug 24) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Aug 27) at 12PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Fri 21st Aug) | 3.5ft (1.0m) 14s |
| Best Surf | 3AM (Mon 24th Aug) | 16ft (5.0m) 14s |
| Most Powerful | 12AM (Mon 24th Aug) | 18ft (5.5m) 14s |
Table - best surf conditions forecast for Cobden Beach - The Channel over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s get into it.
We’ve got a solid run of surf coming up at Cobden Beach - The Channel over the next 16 days, but it’s a tale of two halves. The first week is all about big, powerful swell with tricky winds, while the second week settles into cleaner, more manageable conditions. The water temperature is 55°, which is a touch warmer than average for this time of year – nothing too wild, but noticeable.
The standout session is Friday 21st August morning. The swell is 3 ft from the WSW, with a long 14-second period – proper groundswell. The wind is glassy from the SE at 3 mph, making for silky smooth conditions. The combined energy is 443 (moderate), and the wave comment says it all: “expect good surf conditions.” This is the pick of the whole forecast.
Friday 21st afternoon holds up nicely too, with 3 ft WSW swell and glassy 3 mph winds from the W. The energy drops slightly to 336, but still clean.
Saturday 22nd August is a write-off. The morning has 2 ft W swell with a cross 9 mph NNE wind, and by the afternoon the swell jumps to 5 ft but the wind swings cross-on at 16 mph from the NNW. The energy climbs to 650, but it’s choppy and messy. Then Sunday 23rd is a mess – 16 ft to 18 ft W swell with 28 mph cross-on winds, energy up around 5200 to 7596 – that’s dangerous, not fun. Kite territory, not paddle.
Monday 24th to Wednesday 26th sees big swell (7 ft to 13 ft) with clean glassy mornings on Monday, but the swell is too big for this break – over 8 ft on Monday, so only for experts. The combined energy is 6184 on Monday morning, which is very strong. Winds are mostly light or offshore, but the size is the issue.
Thursday 27th August is marginal, with 3 ft to 4 ft WSW swell, gentler but cross-shore winds. Energy sits around 839-903. Not great, not terrible.
The second week kicks off with a nice run from Friday 28th August – but again, the swell is 13 ft from the NW, too big for most. However, winds are clean and cross-off from the ENE at 12 mph. Energy is 3309 – strong. Saturday 29th drops to 3 ft-3 ft but with a very long 20-second period, but the wind is cross-on, making it marginal.
The true gem of the second week is Monday 31st August morning. The swell is 4 ft from the WSW at 10 seconds, with a light cross-off 6 mph breeze from the ENE. Energy is 587 (moderate), and the wave comment says “expect very good surf conditions.” Clean and fun. Tuesday 1st September morning is also a beauty – 4 ft WSW swell at 15 seconds, with 6 mph ESE cross-off winds. Energy at 754, and again “expect very good surf conditions.” This is a solid, consistent option.
From Wednesday 2nd to Friday 4th September, the swell stays around 4 ft to 4 ft from the WSW, with offshore to cross-off winds and clean conditions. Energy is moderate (437-926). Good, reliable waves for the consistent, consistent break that Cobden Beach - The Channel is. It’s a beginner-friendly spot, so the 3 ft-5 ft range is perfect. The break is exposed to WSW swell, and the optimum swell direction is WSW – it’s spot on.
Saturday 5th September afternoon looks promising – 10 ft from the WNW with glassy 3 mph winds, but that’s over 8 ft, so only for experts. Energy is 1489 (strong).
Overall, the best bets are Friday 21st August morning for the glassy, long-period groundswell, and Monday 31st August morning for clean, consistent waves. The second week is more reliable for quality, but the first week has the real standout.
Rusty.
Short Range ForecastHeavy rain (total 39mm), heaviest during Sat night. Very mild (max 13°C on Sat afternoon, min 9°C on Fri morning). Winds increasing (calm on Fri night, near gales from the NW by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 39mm), heaviest during Wed night. Very mild (max 14°C on Wed afternoon, min 9°C on Mon morning). Winds increasing (calm on Mon morning, fresh winds from the NW by Tue night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | WSW 14 | WSW 14 | WSW 14 | W 13 | W 10 | WNW 9 | W 10 | W 11 | W 14 | W 14 | W 14 | W 15 | W 14 | W 14 | W 8 | W 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | NW 9 |
Wave Graph | |||||||||||||||||||||
443 | 336 | 210 | 163 | 452 | 1656 | 5200 | 7596 | 11808 | 6184 | 4494 | 2830 | 1941 | 1979 | 957 | 2135 | 1327 | 929 | 581 | 350 | 1228 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross | cross-on | on | cross-on | cross-on | cross | glassy | cross-on | on | on | on | on | cross-on | on | cross-on | cross | cross | cross-off |
High Tide | 5:12PM2.55m | 5:55AM2.55m | 6:28PM2.55m | 7:04AM2.59m | 7:37PM2.64m | 8:04AM2.69m | 8:33PM2.78m | 8:55AM2.83m | 9:17PM2.94m | 9:38AM2.97m | 9:55PM3.09m | 10:15AM3.09m | 10:29PM3.22m | ||||||||
Low Tide | 10:53AM1.43m | 11:36PM1.46m | 12:08PM1.50m | 00:50AM1.47m | 1:23PM1.46m | 1:55AM1.39m | 2:23PM1.34m | 2:47AM1.26m | 3:10PM1.19m | 3:29AM1.11m | 3:49PM1.04m | 4:06AM0.95m | 4:24PM0.89m | ||||||||
7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — | |
— | 5:57 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — | |
mm | — | — | — | — | 4 | 22 | 4 | 4 | 5 | — | — | 3 | 3 | 3 | 5 | 2 | 5 | 18 | 9 | 2 | 1 |
Temp °C | 10 | 11 | 10 | 11 | 13 | 13 | 10 | 9 | 9 | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 11 | 12 |
Feels °C | 8 | 9 | 8 | 6 | 7 | 7 | 0 | -1 | -1 | 9 | 8 | 9 | 10 | 9 | 8 | 9 | 10 | 11 | 11 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 14 | WSW 10 | W 10 | WSW 16 | — | — | — | W 14 | W 14 | W 15 | — | — | WSW 13 | W 14 | WSW 13 | WSW 13 | WSW 13 | NW 7 | WSW 14 |
443 | 336 | 210 | 141 | 452 | 87 | — | — | — | 6184 | 4494 | 2830 | — | — | 523 | 2135 | 1327 | 929 | 581 | 171 | 336 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 20 | W 13 | W 13 | W 19 | — | — | — | — | — | — | — | — | — | NNW 7 | NW 8 | NW 8 | NW 8 | WSW 13 | — |
— | — | 8 | 163 | 90 | 66 | — | — | — | — | — | — | — | — | — | 102 | 223 | 147 | 71 | 350 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 20 | WSW 19 | — | — | — | — | — | — | — | — | — | — | — | W 18 | — | W 16 | W 16 | — |
— | — | — | 30 | 71 | — | — | — | — | — | — | — | — | — | — | — | 25 | — | 251 | 318 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | N 3 | NNW 4 | WNW 9 | W 10 | W 11 | W 14 | — | — | — | W 14 | W 14 | W 8 | — | — | — | — | — | NW 9 |
— | — | — | 7 | 37 | 1656 | 5200 | 7596 | 11808 | — | — | — | 1941 | 1979 | 957 | — | — | — | — | — | 1228 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 86 | 190 | 190 | 207 | 246 | 153 | 1 | 153 | 63 | 63 | 190 | 190 | 190 | 156 | 216 | 0 | 0 | 0 |
Best forecast wave conditions in West Coast South Island | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the Cobden Beach - The Channel Surf forecast
The above surf forecast table for Cobden Beach - The Channel provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cobden Beach - The Channel can be found by selecting the local surf guide option on the grey menu. Our Cobden Beach - The Channel 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 Beach - The Channel) 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 Beach - The Channel 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 Beach is 173 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.











