Clarence River surf break

Clarence River surfForecast / Kaikoura and Marlborough / New Zealand

information circle16 Day Weather and Surf, issued 5 am Wednesday 20 May 2026 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
13.1° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Clarence River this week:

The surf forecast for Clarence River over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 22) at 9PM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.6m and 4s. Another secondary swell of 0.9m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Clarence River in the next 16 days are 1.5m 16s and forecast to arrive on Sunday (May 24) at 9PM. 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 Thursday (May 21) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 22nd May)2ft (0.6m) 13s
Best Surf12PM (Mon 25th May)5ft (1.5m) 14s
Most Powerful 9PM (Sun 24th May)5ft (1.5m) 16s

Table - best surf conditions forecast for Clarence River over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 19°C on Thu afternoon, min 10°C on Thu night). Winds increasing (calm on Wed afternoon, fresh winds from the SSW by Thu night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Mon morning, min 11°C on Sat night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
2
1
1
1
2
1
3
3
3
3
3
3
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SSE
9
0.6
NE
6
0.5
NE
6
0.2
S
13
0.2
S
10
0.3
S
11
0.3
S
10
0.7
S
9
0.8
SSW
13
0.7
S
12
0.7
S
11
0.9
S
14
1.1
S
14
1.2
S
16
1.5
S
16
1.5
S
14
1.5
S
14
1.4
S
13
1.4
S
12
1.3
S
12
1
S
11
Wave Graph
Metric surfscale
Energy kJ
16
23
15
13
8
21
17
78
232
144
110
297
480
715
1121
919
808
640
584
488
257
Wind (km/h)
5
N
0
WNW
10
NW
15
NNW
10
NNW
25
SSW
10
NNE
20
NE
10
WSW
15
SW
5
SSE
10
N
10
NNE
15
ENE
10
NNW
5
NW
5
S
10
WNW
5
W
25
SSW
10
ESE
cross-on
glassy
cross
cross
cross
off
cross-on
on
cross-off
off
glassy
cross-on
cross-on
on
cross-on
cross
glassy
cross-off
glassy
off
cross
High Tide
8:00PM1.75m
8:29AM1.53m
8:59PM1.72m
9:27AM1.50m
9:56PM1.67m
10:26AM1.48m
10:53PM1.60m
11:23AM1.45m
11:48PM1.54m
12:18PM1.42m
00:41AM1.47m
1:11PM1.40m
1:32AM1.41m
Low Tide
1:43PM-0.01m
2:27AM0.00m
2:41PM0.00m
3:25AM0.02m
3:39PM0.03m
4:21AM0.04m
4:36PM0.07m
5:16AM0.07m
5:33PM0.11m
6:09AM0.11m
6:28PM0.16m
7:00AM0.15m
7:22PM0.21m
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:33
7:33
7:35
7:35
7:35
7:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:07
5:07
5:07
5:06
5:05
5:05
5:04
13
Temp °C
15
16
13
18
19
13
12
13
13
13
13
13
13
13
12
16
16
14
17
14
11
12
14
10
14
17
7
9
9
12
11
12
10
10
11
11
14
14
11
14
9
8
Swell 1
Height (m)
Direction
Period (s)
0.4
NE
5
0.6
NE
6
0.5
NE
6
0.6
NNE
6
0.7
NE
7
0.4
NE
5
0.5
SE
5
0.7
S
9
0.8
SSW
13
0.7
S
12
0.7
S
11
0.9
S
14
1.1
S
14
1.2
S
16
1.5
S
16
1.5
S
14
1.5
S
14
1.4
S
13
1.4
S
12
1.3
S
12
1
S
11
Energy kJ
7
23
15
27
47
7
12
78
232
144
110
297
480
715
1121
919
808
640
584
488
257
Swell 2
Height (m)
Direction
Period (s)
0.3
SSE
9
0.2
SSE
9
0.3
NE
7
0.2
S
13
0.2
S
10
0.3
S
11
0.5
S
5
0.4
SE
4
0.5
E
4
0.2
E
5
0.5
S
4
0.2
ENE
11
0.2
ENE
10
0.4
NE
12
0.6
ENE
4
0.5
NE
5
0.4
ENE
10
0.5
S
17
0.4
ENE
10
0.5
NE
6
0.5
ENE
10
Energy kJ
16
8
8
13
8
21
13
7
9
2
8
12
10
37
11
12
39
142
40
18
57
Swell 3
Height (m)
Direction
Period (s)
0.3
E
5
0.2
ENE
9
0.2
E
10
0.1
E
10
0.1
SE
12
0.1
E
9
0.3
S
10
0.2
S
14
0.1
SE
11
0.1
NE
5
0.2
E
4
0.1
SE
12
0.2
ENE
13
0.1
SE
12
0.4
ENE
11
0.4
ENE
10
0.4
NNE
6
0.4
ENE
10
0.4
NNE
6
0.4
ENE
10
0.2
S
15
Energy kJ
4
8
7
2
6
2
17
16
5
1
2
5
17
5
47
41
14
38
15
40
17
Wind waves
Height (m)
Direction
Period (s)
1.2
NNE
6
1.7
N
7
0.9
SSW
4
0.1
NE
4
0.7
ENE
3
0.9
NE
4
0.5
S
3
0.5
ENE
3
0.8
NE
4
0.9
NNE
5
1.1
N
6
1.1
NNE
6
0.4
SW
3
Energy kJ
110
262
34
1
9
32
6
5
25
39
91
89
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
2
1
1
2
3
3
4
3
3
3
3
3
2
Distance (km)
124
35
177
113
24
95
113
113
0
0
0
10
10
10
10
10
0
0
0
0
113
Best forecast wave conditions in Kaikoura and Marlborough
Rating
(10 max)
1
1
2
1
1
2
3
3
4
4
3
3
3
3
Best forecast wave conditions in New Zealand
Rating
(10 max)
2
2
1
3
1
4
4
4
3
5
6
9
6
5
4
4
4
3
3
3
4
Header Global
Rating
(10 max)
5
5
4
4
4
4
4
5
7
5
6
9
6
5
5
4
4
5
5
5
5
  • 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 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 16 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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