Westport Breakwater Surf Forecast

/ West Coast South Island (21 surf breaks) /

New Zealand (466 surf breaks) / Lat Long: (41.74° S 171.64° E)

Surf Forecasts:

Westport Breakwater surfForecast / West Coast South Island / New Zealand

12 Day Weather and Surf, issued 5 pm Thursday 18 Sep 2025 NZST

Forecast update in hr min s Forecast update imminent

Westport Breakwater surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Westport Breakwater sea temperature is 13.2° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Westport Breakwater this week:

The surf forecast for Westport Breakwater over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 12AM. The primary swell is predicted to be 3.5m and 14s period with a secondary swell of 1.8m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Westport Breakwater in the next 12 days are 5.5m 11s and forecast to arrive on Sunday (Sep 21) at 12PM. 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+)	12AM (Fri 19th Sep)	11ft (3.5m) 14s
Best Surf	12AM (Fri 19th Sep)	11ft (3.5m) 14s
Most Powerful	12PM (Sun 21st Sep)	18ft (5.5m) 11s

Table - best surf conditions forecast for Westport Breakwater over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 33mm), heaviest during Sun morning. Very mild (max 13°C on Sat night, min 6°C on Fri night). Winds increasing (calm on Fri morning, strong winds from the NNE by Sun morning).											Days 3-6 Weather Summary Heavy rain (total 23mm), heaviest during Sun afternoon. Very mild (max 15°C on Tue morning, min 7°C on Mon night). Wind will be generally light.
	Thu 18		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	!	!	!	!	3	0	0	0	!	!	!	!	!	4	3	4	4	2	4	3
Swell Height Map See all maps
Wave Height (m) & direction (?)	NW	W	W	W	W	W	W	NNW	NNW	NW	NW	W	W	W	W	W	W	WSW	WSW	WSW	WSW
Period(s) (?)	10	14	13	13	12	11	12	6	10	12	11	14	14	13	12	12	14	14	13	14	13
Wave Graph (?)
kJ (?)	1697	4310	3341	2621	1369	698	454	422	3699	4880	2213	2785	2135	1452	1048	1098	1487	1347	1197	1122	724
Wind (km/h)	WSW	S	SE	NNW	E	NE	NNE	NNE	NNE	S	SE	SSE	W	SE	SSE	WSW	SSE	SSW	W	E	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- off	off	cross- on	cross- off	cross- off	cross	cross	cross	cross- off	cross- off	cross- off	cross- on	cross- off	glass	cross- on	glass	glass	cross- on	glass	cross- off
High Tide / height (m)		8:29PM 2.83	8:55AM 2.80		9:15PM 2.96	9:38AM 2.91		9:54PM 3.05	10:14AM 2.98		10:30PM 3.10	10:48AM 3.02		11:03PM 3.09	11:19AM 3.02		11:34PM 3.05	11:50AM 2.99		12:06AM 2.97
Low Tide / height (m)		2:42AM 0.66		3:05PM 0.65		3:27AM 0.53	3:46PM 0.51		4:05AM 0.42	4:22PM 0.41		4:40AM 0.36	4:56PM 0.36		5:13AM 0.34	5:28PM 0.36		5:45AM 0.36	5:59PM 0.41		6:16AM 0.43

	Thu 18		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	-	-	6:28	-	-	6:26	-	-	6:24	-	-	6:22	-	-	6:20	-	-	6:20	-	-	6:18
Sunset	6:24	-	-	6:25	-	-	6:27	-	-	6:28	-	-	6:29	-	-	6:30	-	-	6:30	-	-

Rain (mm)	6	-	-	-	-	-	-	2	25	23	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	12	9	11	11	7	11	11	13	13	12	10	14	13	9	15	15	12	14	14	10	14
Feels °C (?)	8	4	8	8	4	7	7	5	5	11	9	11	10	7	12	12	10	12	11	9	11

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for West Coast South Island

Wind Update Cross-off winds at Cobden Beach - The Channel are now cross-shore so expect speed-bumps in the surf (light winds from the SW at HokitikaAeroAws 35 km from Cobden Beach - The Channel). 2.1m 13s groundswell from the W with a 1.8m 10s swell from the NW. 2 swells combining so expect closeout sets.
1 hour 30 minutes ago Cobden Beach - The Channel

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1 h 30 min ago

7 km/h

SSE

Clean

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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 12 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.