Surf Forecasts:
Westport Breakwater surf forecast from 17 Aug 2026:
- Best quality surf: Saturday 22 Aug, 9AM (local time) - 7ft (2.1m), 11s period, W swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 9PM (local time) - 15ft (4.5m), 14s period, W swell with 8,508 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 9AM (local time) - 6ft (1.9m), 13s period with WSW swell.
Best Forecast Surf Conditions for Westport Breakwater this week:
The surf forecast for Westport Breakwater over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 9AM. The primary swell is predicted to be 1.9m and 13s period with a secondary swell of 0.3m and 18s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Westport Breakwater in the next 16 days are 4.5m 14s and forecast to arrive on Monday (Aug 24) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Tue 18th Aug) | 6ft (1.9m) 13s |
| Best Surf | 9AM (Sat 22nd Aug) | 7ft (2.1m) 11s |
| Most Powerful | 9PM (Mon 24th Aug) | 15ft (4.5m) 14s |
Table - best surf conditions forecast for Westport Breakwater over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 12°C on Tue afternoon, min 3°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Fri night. Very mild (max 13°C on Fri night, min 6°C on Thu night). Winds increasing (calm on Fri night, fresh winds from the WNW by Sat night). | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 13 | WSW 10 | WSW 10 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 15 | WSW 14 | WSW 14 | W 11 | W 10 | WNW 8 | W 10 | W 12 | W 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 900 | 1139 | 555 | 585 | 1038 | 1631 | 1158 | 838 | 681 | 563 | 573 | 437 | 273 | 974 | 614 | 541 | 2831 | 5006 | 7004 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-on | off | off | cross | off | off | glassy | off | glassy | cross-on | cross-off | glassy | on | on | cross-on | cross-on | on |
High Tide | 2:00AM2.89m | 2:19PM2.75m | 2:44AM2.69m | 3:03PM2.58m | 3:36AM2.51m | 3:58PM2.44m | 4:40AM2.39m | 5:07PM2.35m | 5:50AM2.35m | 6:23PM2.35m | 6:59AM2.40m | 7:32PM2.44m | |||||||
Low Tide | 8:13AM0.57m | 8:30PM0.69m | 8:56AM0.78m | 9:19PM0.90m | 9:45AM0.98m | 10:18PM1.07m | 10:48AM1.14m | 11:31PM1.18m | 12:03PM1.22m | 00:45AM1.19m | 1:18PM1.18m | 1:50AM1.11m | |||||||
 |  | | | | | | | | |  | |  |  | | |  | | | |
 | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — |
 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 2 | 3 | 10 | 3 | 3 | 1 |
Temp °C | 5 | 10 | 12 | 8 | 11 | 11 | 9 | 12 | 12 | 8 | 11 | 11 | 13 | 13 | 13 | 13 | 11 | 11 | 11 |
Feels °C | 2 | 7 | 9 | 4 | 8 | 8 | 7 | 10 | 10 | 6 | 9 | 8 | 9 | 11 | 10 | 8 | 5 | 4 | 7 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 13 | WSW 10 | WSW 10 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 15 | WSW 14 | WSW 14 | W 11 | W 10 | W 19 | WSW 15 | — | W 15 |
| kJ | 900 | 1139 | 555 | 585 | 1038 | 1631 | 1158 | 838 | 681 | 563 | 573 | 437 | 273 | 974 | 614 | 267 | 231 | — | 7004 |
Swell 2 Height (m) Direction Period (s) | — | W 18 | WSW 14 | WSW 13 | WSW 10 | — | — | N 4 | N 4 | — | — | — | W 20 | WSW 14 | W 13 | W 12 | W 18 | — | — |
| kJ | — | 56 | 322 | 317 | 301 | — | — | 3 | 1 | — | — | — | 7 | 36 | 90 | 80 | 235 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | WSW 18 | — | — | — | — | — | — | — | — | — | WSW 19 | WSW 20 | WSW 16 | — | — | — |
| kJ | — | — | — | 243 | — | — | — | — | — | — | — | — | — | 70 | 127 | 25 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | WNW 3 | — | — | WNW 8 | W 10 | W 12 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | 541 | 2831 | 5006 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 4 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 176 | 143 | 185 | 185 | 143 |
Best forecast wave conditions in West Coast South Island | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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 Westport Breakwater 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 Westport Breakwater Surf forecast
The above surf forecast table for Westport Breakwater provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Westport Breakwater can be found by selecting the local surf guide option on the grey menu. Our Westport 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 (Westport 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 Westport 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.
Are you planning a holiday in West Coast South Island? If you are looking for accommodation near Westport Breakwater, camping, hotels and holiday cottages in West Coast South Island, consider staying in Nelson which is 145 km (90 miles) away.
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