Surf Forecasts:
Catlins River Mouth surf forecast from 11 Sep 2026:
- Best quality surf: Saturday 12 Sep, 6AM (local time) - 20ft (6.0m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 9AM (local time) - 23ft (7.0m), 16s period, SW swell with 23,800 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 6AM (local time) - 20ft (6.0m), 16s period with SSW swell.
Best Forecast Surf Conditions for Catlins River Mouth this week:
The surf forecast for Catlins River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 6AM. The primary swell is predicted to be 6.0m and 16s period with a secondary swell of 5.0m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Catlins River Mouth in the next 16 days are 7.0m 16s and forecast to arrive on Saturday (Sep 12) 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 1.0m 6s period and expected on Saturday (Sep 19) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 12th Sep) | 20ft (6.0m) 16s |
| Best Surf | 6AM (Sat 12th Sep) | 20ft (6.0m) 16s |
| Most Powerful | 9AM (Sat 12th Sep) | 23ft (7.0m) 16s |
Table - best surf conditions forecast for Catlins River Mouth over the next 16 days.
Short Range ForecastModerate rain (total 10mm), heaviest on Sat night. Very mild (max 15°C on Mon afternoon, min 5°C on Fri night). Winds decreasing (strong winds from the WSW on Fri night, light winds from the NNW by Mon morning). | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Thu afternoon. Very mild (max 18°C on Tue afternoon, min 5°C on Wed night). Winds increasing (calm on Wed afternoon, strong winds from the WSW by Thu afternoon). | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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) | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SSW 16 | SSW 15 | SSW 16 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 15536 | 23800 | 18383 | 10256 | 8333 | 3865 | 1557 | 1095 | 851 | 482 | 288 | 205 | 178 | 261 | 431 | 436 | 784 | 1238 | 6497 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | off | cross-off | cross-on | off | cross-off | cross-off | cross-off |
High Tide | 3:16AM2.55m | 3:42PM2.52m | 3:59AM2.54m | 4:22PM2.50m | 4:41AM2.49m | 5:01PM2.44m | 5:24AM2.42m | 5:40PM2.36m | 6:07AM2.33m | 6:22PM2.26m | 6:55AM2.23m | 7:10PM2.16m | |||||||
Low Tide | 9:08PM0.62m | 9:32AM0.58m | 9:51PM0.65m | 10:15AM0.66m | 10:34PM0.72m | 10:57AM0.77m | 11:16PM0.82m | 11:40AM0.90m | 11:59PM0.93m | 12:23PM1.02m | 00:44AM1.03m | 1:10PM1.13m | 1:34AM1.12m | ||||||
 |  | | |  | |  |  | |  | | |  |  | | | |  | | |
 | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — |
 | — | — | 6:23 | — | — | 6:24 | — | — | 6:27 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — |
mm | 4 | — | — | 6 | — | — | — | — | — | — | — | — | 2 | 5 | 4 | 1 | — | 6 | 2 |
Temp °C | 7 | 8 | 10 | 9 | 12 | 12 | 10 | 14 | 15 | 13 | 16 | 18 | 13 | 8 | 8 | 7 | 10 | 8 | 7 |
Feels °C | -2 | 1 | 3 | 1 | 6 | 7 | 5 | 11 | 12 | 10 | 12 | 14 | 10 | 5 | 7 | 5 | 3 | 1 | -2 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SSW 16 | SSW 15 | SSW 16 | SSW 15 |
| kJ | 10039 | 11701 | 9131 | 6930 | 5409 | 3865 | 1557 | 1095 | 851 | 482 | 288 | 205 | 178 | 261 | 431 | 436 | 784 | 1238 | 4097 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | NE 13 | S 10 | S 9 | S 9 | S 8 | S 8 | S 8 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | ESE 13 | SW 7 | ESE 12 |
| kJ | — | — | — | — | — | 7 | 414 | 225 | 160 | 68 | 33 | 11 | 10 | 6 | 7 | 3 | 17 | 77 | 29 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | NE 12 | NE 12 | E 12 | E 12 | NE 4 | SE 11 | S 8 | SE 10 | SE 10 | SE 15 | ENE 8 | ESE 13 | — |
| kJ | — | — | — | — | — | — | 6 | 6 | 3 | 3 | 1 | 5 | 1 | 4 | 4 | 8 | 6 | 18 | — |
Wind waves Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | — | — | — | — | — | — | NE 4 | NE 5 | SW 4 | — | SSW 6 | — | WSW 6 | SW 14 |
| kJ | 15536 | 23800 | 18383 | 10256 | 8333 | — | — | — | — | — | — | 1 | 19 | 7 | — | 94 | — | 394 | 6497 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 256 | 256 | 161 | 161 | 21 | 8 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 21 | 61 | 408 |
Best forecast wave conditions in Catlins | |||||||||||||||||||
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)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Catlins River Mouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Catlins River Mouth Surf forecast
The above surf forecast table for Catlins River Mouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Catlins River Mouth can be found by selecting the local surf guide option on the grey menu. Our Catlins River Mouth 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 (Catlins River Mouth) 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 Catlins River Mouth 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.
Catlins River Mouth is 91 km (57 miles) from Dunedin. If you plan a holiday in Catlins, look for hotels and other accommodation in Dunedin. Dunedin has rooms for a wide range of budgets as well as car hire and transport links.
Nearest