Clarence River surf break

Clarence River surfForecast / Kaikoura and Marlborough / New Zealand

information circle12 Day Weather and Surf, issued 5 pm Wednesday 09 Jul 2025 NZST
Forecast update in hr  min  s Forecast update imminent
Clarence River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Clarence River sea temperature is
11.0° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Clarence River this week:

The surf forecast for Clarence River over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 10) at 3AM. The primary swell is predicted to be 1.9m and 12s period with a secondary swell of 0.3m and 9s. Another secondary swell of 1.3m and 5s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Clarence River in the next 12 days are 4.5m 10s and forecast to arrive on Saturday (Jul 12) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Saturday (Jul 12) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 10th Jul)6ft (1.9m) 12s
Best Surf12AM (Thu 17th Jul)5.5ft (1.7m) 11s
Most Powerful12AM (Sat 12th Jul)15ft (4.5m) 10s

Table - best surf conditions forecast for Clarence River over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Wed
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Mon
21
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
E
1.5
E
1.6
E
1.7
E
1.6
E
1.8
ENE
2
ENE
4.5
ENE
2.5
E
2.4
E
2.1
E
1.8
E
1.6
E
1.6
E
1.5
E
1.6
E
1.4
E
1.3
E
1.3
E
1.1
E
1.1
E
1.5
E
1.7
ESE
1.3
ESE
1.5
ESE
1.3
ESE
0.9
ESE
0.9
ESE
0.7
ESE
0.6
ESE
0.6
E
0.3
SSW
0.5
E
0.6
E
0.3
SSW
0.5
S
Period(s) (?)141111111112121011111111111112121111111010101111111110101099171091411
Wave
Graph
(?)Metric surfscale
Energy (?)234734926867729102014316295199816061197773688574687788510439420372267781122675065138320916313083721069811675129
Wind
(km/h)
25
NNE
25
NNE
15
NNW
15
N
15
NNW
25
NNE
30
NNE
25
NNE
20
NNW
20
N
15
NW
15
NNW
30
NNE
20
N
15
NNW
15
N
10
WNW
10
WNW
25
NNE
10
NW
5
NW
5
S
10
W
10
WNW
5
ESE
10
WNW
25
SSW
10
SSE
15
NNE
10
NNW
5
NNE
20
NNW
15
NNW
15
NW
30
SW
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
crosscross-
on
oncross-
on
cross-
on
cross-
on
cross-
off
cross-
off
cross-
on
crosscrosscross-
off
cross-
off
cross-
off
glasscross-
off
cross-
off
cross-
off
cross-
on
cross-
on
cross-
on
cross-
on
crosscrossoffcross
High Tide
/ height (m)
3:52PM
1.42
4:11AM
1.29
4:36PM
1.45
4:56AM
1.30
5:21PM
1.47
5:41AM
1.31
6:07PM
1.49
6:26AM
1.31
6:52PM
1.49
7:13AM
1.33
7:39PM
1.50
8:01AM
1.34
8:27PM
1.49
8:52AM
1.37
9:16PM
1.48
9:44AM
1.40
10:08PM
1.47
10:39AM
1.44
11:03PM
1.46
11:35AM
1.49
11:59PM
1.46
12:31PM
1.54
12:56AM
1.45
Low Tide
/ height (m)
10:10PM
0.32
10:16AM
0.28
10:57PM
0.29
11:02AM
0.25
11:43PM
0.27
11:48AM
0.22
12:30AM
0.24
12:35PM
0.20
1:16AM
0.21
1:23PM
0.18
2:02AM
0.19
2:12PM
0.17
2:50AM
0.16
3:03PM
0.16
3:38AM
0.14
3:57PM
0.15
4:28AM
0.13
4:53PM
0.15
5:20AM
0.12
5:50PM
0.15
6:13AM
0.11
6:49PM
0.14
7:08AM
0.10
Wed
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Mon
21
Sunrise--7:50--7:50--7:50--7:50--7:48--7:48--7:48--7:47--7:47--7:46--7:45--7:43
Sunset5:07--5:07--5:07--5:08--5:09--5:09--5:10--5:12--5:13--5:14--5:15--5:15--
cloudpart cloudpart cloudpart cloudclearcloudheavy rainrain showersclearpart cloudclearpart cloudlight rainrain showersclearpart cloudclearcloudrain showerspart cloudpart cloudpart cloudpart cloudclearpart cloudpart cloudclearcloudpart cloudclearpart cloudpart cloudpart cloudcloudrain showersclear
Rain (mm)
------1210----11----1---------------1-
Temp. °C12121516121313131415121313111414121413121212101413131110912131114141010
Feels °C (?)6713139886101198661111910899961111107769106101066

Short Range Forecast: Heavy rain (total 22mm), heaviest during Fri afternoon. Very mild (max 16°C on Thu afternoon, min 11°C on Wed afternoon). Winds increasing (light winds from the N on Thu morning, strong winds from the NNE by Fri night).

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 15°C on Sat afternoon, min 10°C on Sat night). Winds decreasing (fresh winds from the NNE on Sun afternoon, light winds from the WNW by Mon night).

Days 6-9 Weather Summary Some drizzle, heaviest during Tue afternoon. Very mild (max 14°C on Thu morning, min 9°C on Wed night). Winds decreasing (fresh winds from the NNE on Tue afternoon, calm by Thu afternoon).

Long Range Forecast: Some drizzle, heaviest during Sun night. Very mild (max 14°C on Sun morning, min 7°C on Fri night). Winds increasing (calm on Fri afternoon, fresh winds from the SW by Sun night).

  • Map Icons:
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  • 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 Clarence River Surf forecast

The above surf forecast table for Clarence River provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Clarence River can be found by selecting the local surf guide option on the grey menu. Our Clarence River 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 (Clarence River) 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 Clarence River 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.

Clarence River is 70 km (43 miles) from the city of Blenheim. If you plan a holiday in Kaikoura and Marlborough, look for hotels and other accommodation in Blenheim. Blenheim has rooms for a wide range of budgets as well as car hire and transport links.

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