Smoothwater Bay Surf Forecast

/ West Coast South Island (21 surf breaks) /

New Zealand (466 surf breaks)

Surf Forecasts:

Smoothwater Bay surfForecast / West Coast South Island / New Zealand

12 Day Weather and Surf, issued 5 am Friday 22 Aug 2025 NZST

Forecast update in hr min s Forecast update imminent

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

Today's Smoothwater Bay sea temperature is 12.8° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Smoothwater Bay this week:

The surf forecast for Smoothwater Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 22) at 6PM. The primary swell is predicted to be 2.3m and 15s period with a secondary swell of 0.1m and 19s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Smoothwater Bay in the next 12 days are 2.3m 15s and forecast to arrive on Friday (Aug 22) at 3PM. 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+)	6PM (Fri 22nd Aug)	7.5ft (2.3m) 15s
Best Surf	6PM (Fri 22nd Aug)	7.5ft (2.3m) 15s
Most Powerful	3PM (Fri 22nd Aug)	7.5ft (2.3m) 15s

Table - best surf conditions forecast for Smoothwater Bay over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Very mild (max 11°C on Sat morning, min 8°C on Fri morning). Wind will be generally light.									Days 3-6 Weather Summary Mostly dry. Very mild (max 11°C on Wed afternoon, min 8°C on Mon morning). Wind will be generally light.
	Friday 22			Saturday 23			Sunday 24			Monday 25			Tuesday 26			Wednesday 27			Thursday 28
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	4	3	4	4	3	4	4	2	4	4	2	4	4	3	4	4	2	3	2	2	4
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	N	N	NW
Period(s) (?)	16	15	14	13	14	15	14	16	15	14	14	13	13	18	16	16	14	14	11	8	10
Wave Graph (?)
Energy (?)	2262	2530	1874	1388	1376	1418	1343	1577	1383	1558	1850	1600	1868	1980	2212	1266	854	677	1288	1116	1635
Wind (km/h)	SE	NE	SE	SE	NNE	SE	SSE	W	SSW	SSE	W	SSE	SE	NE	SE	ESE	NE	E	ENE	ENE	SSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- on	cross- off	cross- off	cross- on	off	glass	cross- on	cross- off	off	cross- on	off	glass	cross- on	cross- off	cross- off	cross	cross- off	cross	cross	glass
High Tide / height (m)	10:38AM 1.96		10:57PM 2.05	11:20AM 2.00		11:36PM 2.08	11:57AM 2.02		12:12AM 2.08		12:31PM 2.00	12:46AM 2.04		1:04PM 1.96	1:19AM 1.97		1:36PM 1.90	1:52AM 1.89		2:10PM 1.82	2:28AM 1.79
Low Tide / height (m)		4:48PM 0.41		5:09AM 0.34	5:28PM 0.34		5:48AM 0.30		6:05PM 0.31	6:24AM 0.29		6:39PM 0.31	6:58AM 0.31		7:12PM 0.35	7:32AM 0.36		7:45PM 0.41	8:05AM 0.43		8:19PM 0.49

	Friday 22			Saturday 23			Sunday 24			Monday 25			Tuesday 26			Wednesday 27			Thursday 28
Sunrise	7:30	-	-	7:28	-	-	7:26	-	-	7:24	-	-	7:24	-	-	7:22	-	-	7:20	-	-
Sunset	-	6:07	-	-	6:07	-	-	6:08	-	-	6:09	-	-	6:10	-	-	6:12	-	-	6:13	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	5	19	27
Temp. °C	9	10	10	11	11	11	11	11	10	9	10	9	10	10	9	10	11	10	11	11	12
Feels °C (?)	6	8	7	8	8	8	8	7	7	6	7	6	8	8	6	6	7	6	6	7	10

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 The wind is still offshore at Smoothwater Bay (light winds from the SE at Haast Automatic Weather Station 36 km from Smoothwater Bay). A 2.4m groundswell from the WSW
1 hour 31 minutes ago Smoothwater Bay

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36 km away, 1 h 31 min ago

15 km/h

0.0

12.8

Air / Water (°C)

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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 Smoothwater Bay 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 Smoothwater Bay Surf forecast

The above surf forecast table for Smoothwater Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Smoothwater Bay can be found by selecting the local surf guide option on the grey menu. Our Smoothwater Bay 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 (Smoothwater Bay) 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 Smoothwater Bay 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 Smoothwater Bay, camping, hotels and holiday cottages in West Coast South Island, consider staying in Okuru which is 28 km (17 miles) away.