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 12 am Tuesday 18 Nov 2025 NZDT

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 14.8° 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 Tuesday (Nov 18) at 10AM. The primary swell is predicted to be 2.5m and 11s period with a secondary swell of 0.3m and 12s. Another secondary swell of 1.6m and 7s is also forecast. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Westport Breakwater in the next 12 days are 3.5m 12s and forecast to arrive on Tuesday (Nov 18) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave Type	Time (NZDT) & Date	Wave Height & Period
Next good surf (1 star+)	10AM (Tue 18th Nov)	8ft (2.5m) 11s
Best Surf	10AM (Tue 18th Nov)	8ft (2.5m) 11s
Most Powerful	1PM (Tue 18th Nov)	11ft (3.5m) 12s

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 30mm), heaviest during Tue afternoon. Very mild (max 18°C on Thu morning, min 15°C on Mon night). Winds decreasing (fresh winds from the NNE on Tue afternoon, calm by Wed night).										Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Fri morning, min 11°C on Fri night). Wind will be generally light.
		Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Mon 24
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	1	!	!	!	3	1	3	!	!	4	4	3	4	4	1	3	1	0	2	2	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	NNW	NW	NNW	NNW	NNW	NNW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	W	WSW	WSW	WSW	WSW	WSW	WSW	WSW
Period(s) (?)	8	11	11	10	10	9	11	14	13	13	14	13	13	15	14	14	13	13	12	11	11
Wave Graph (?)
kJ (?)	356	1682	2966	1220	630	370	657	1665	1452	1144	1106	1074	1042	1332	862	826	732	1152	317	705	597
Wind (km/h)	NE	NNE	NNE	ENE	ENE	WSW	WSW	WSW	WSW	SSE	WNW	WNW	SE	W	WSW	S	WSW	WSW	S	N	WNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross	cross	cross- off	glass	cross- on	glass	cross- on	cross- on	cross- off	glass	on	cross- off	glass	cross- on	cross- off	cross- on	cross- on	cross- off	cross- on	on
High Tide / height (m)		10:15AM 2.87		10:31PM 2.92	10:50AM 2.94		11:07PM 2.96	11:24AM 2.99		11:43PM 2.98	11:58AM 3.00		12:18AM 2.97	12:33PM 2.98		12:55AM 2.92		1:08PM 2.93	1:33AM 2.85		1:48PM 2.85
Low Tide / height (m)		4:05AM 0.76	4:24PM 0.74		4:42AM 0.72	5:00PM 0.70		5:18AM 0.71	5:34PM 0.69		5:53AM 0.71	6:08PM 0.70		6:28AM 0.73	6:42PM 0.73		7:04AM 0.76		7:19PM 0.76	7:42AM 0.80

		Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Mon 24
Sunrise	-	6:01	-	-	6:01	-	-	6:00	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:56	-
Sunset	-	-	8:35	-	-	8:36	-	-	8:37	-	-	8:38	-	-	8:39	-	-	8:40	-	-	8:42

Rain (mm)	4	3	12	5	-	1	5	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	16	16	16	17	17	17	16	18	18	14	18	18	14	18	17	13	16	16	11	15	16
Feels °C (?)	11	12	12	16	18	18	17	16	16	13	16	17	14	16	15	12	11	11	7	13	14

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

Quick surf report for Westport Breakwater:

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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.