Smoothwater Bay surfForecast / West Coast South Island / New Zealand

information circle12 Day Weather and Surf, issued 11 am Sunday 06 Jul 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
13.3° 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 Sunday (Jul 06) at 3PM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.9m and 7s. 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 5.5m 12s and forecast to arrive on Saturday (Jul 12) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Jul 07) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Sun 6th Jul)3.5ft (1.1m) 13s
Best Surf 6PM (Sat 12th Jul)16ft (5.0m) 11s
Most Powerful 9PM (Sat 12th Jul)18ft (5.5m) 12s

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

Updates in  hr  min  s Forecast update imminent
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.1
SW
1.1
SW
1.2
SW
1.3
WSW
1.2
WSW
1.1
SW
1.1
SW
1.1
SW
2.3
NNE
3
NNE
3.5
NNE
3
NNE
1.3
WSW
1.8
WSW
2.3
WSW
2.2
WSW
2.1
WSW
3
NNE
2.3
N
3
W
3
WNW
5
WSW
4
W
2.5
W
2.5
W
3.5
W
3.5
WSW
3.5
W
2.5
WSW
2.5
WSW
2.2
WSW
3
W
2.3
WSW
2.1
WSW
2.1
WSW
2
WSW
Period(s) (?)14131313131313138910101918161514991412111211101115141413131211121213
Wave
Graph
(?)Metric surfscale
Energy (?)625621581600471433505511934191726962083212126483341288228582612197946014787558543011852259439776340568039262447195325491751159414821488
Wind
(km/h)
10
SE
0
NNW
10
SE
15
SE
10
ENE
15
E
15
E
20
NE
20
ENE
25
E
35
ENE
25
ENE
25
ENE
30
ENE
35
NE
35
ENE
30
ESE
15
E
0
SE
15
WSW
35
SW
35
SW
35
WSW
15
SSW
20
ENE
25
NNE
35
N
20
W
20
W
25
NNE
20
NW
35
WSW
10
SE
15
ENE
15
ENE
5
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offglassoffoffcrosscross-
off
cross-
off
crosscrosscross-
off
crosscrosscrosscrosscross-
on
crosscross-
off
cross-
off
glasscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
on
cross-
on
crosscrosscross-
on
oncrossoffcross-
off
crosscross-
off
High Tide
/ height (m)
8:18PM
1.70
8:42AM
1.75
9:09PM
1.77
9:31AM
1.81
9:56PM
1.85
10:17AM
1.88
10:38PM
1.92
10:59AM
1.95
11:18PM
1.99
11:40AM
1.99
11:57PM
2.04
12:20PM
2.02
12:35AM
2.07
12:59PM
2.03
1:14AM
2.08
1:39PM
2.01
1:54AM
2.07
2:21PM
1.98
2:37AM
2.03
3:06PM
1.93
3:25AM
1.98
3:55PM
1.87
Low Tide
/ height (m)
2:03PM
0.78
2:32AM
0.77
2:57PM
0.75
3:21AM
0.73
3:46PM
0.71
4:06AM
0.68
4:30PM
0.65
4:48AM
0.62
5:11PM
0.59
5:28AM
0.56
5:50PM
0.53
6:07AM
0.50
6:28PM
0.49
6:47AM
0.45
7:06PM
0.45
7:27AM
0.42
7:45PM
0.44
8:10AM
0.41
8:27PM
0.45
8:56AM
0.42
9:13PM
0.47
9:45AM
0.45
10:05PM
0.52
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Sunrise8:19--8:18--8:18--8:18--8:18--8:18--8:17--8:17--8:15--8:15--8:15--8:14--
Sunset-5:20--5:21--5:22--5:22--5:22--5:23--5:24--5:24--5:25--5:27--5:28--5:29-
clearclearpart cloudcloudcloudrain showerspart cloudrain showerslight rainmod rainlight rainlight rainlight rainmod rainheavy rainlight rainheavy rainmod rainpart cloudlight rainpart cloudpart cloudclearpart cloudheavy rainheavy rainheavy rainthunderstorm rain showersheavy rainrain showersrain showerslight rainrain showersrain showersrain showers
Rain (mm)
-----2-21102146184209-2----152428532018141129
Temp. °C121212131312121211101213131313131111121111101189121210101111108101113
Feels °C (?)1011799810875688876571085332365554314789

Short Range Forecast: Light rain (total 5mm), mostly falling on Mon night. Very mild (max 13°C on Mon morning, min 10°C on Sun morning). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 74mm), heaviest during Fri afternoon. Very mild (max 13°C on Wed night, min 8°C on Wed morning). Winds decreasing (fresh winds from the ENE on Fri morning, light winds from the SE by Fri night).

Days 6-9 Weather Summary Heavy rain (total 69mm), heaviest during Mon afternoon. Very mild (max 12°C on Sat morning, min 7°C on Sun night). Winds increasing (calm on Sat morning, strong winds from the NNE by Mon night).

Long Range Forecast: Heavy rain (total 78mm), heaviest during Tue night. Very mild (max 13°C on Thu night, min 7°C on Wed night). Winds decreasing (fresh winds from the W on Wed morning, calm by Thu night).

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

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