Clarence River Surf Break

Lat Long: 42.15° S 173.93° E

Clarence River Surf Forecast and Surf Report

Issued: 11 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Clarence River sea temperature is
11.5°C
0.6° 

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


Clarence River surf forecast from 21 Sep 2026:

  • Best quality surf: Monday 28 Sep, 7AM (local time) - 11ft (3.5m), 14s period, S swell with offshore winds.
  • Most powerful swell: Monday 28 Sep, 7AM (local time) - 11ft (3.5m), 14s period, S swell with 5,087 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 22 Sep, 12AM (local time) - 3.5ft (1.1m), 10s period with S swell.

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 Tuesday (Sep 22) at 12AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.5m and 6s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Clarence River in the next 16 days are 3.5m 14s and forecast to arrive on Monday (Sep 28) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Sunday (Sep 27) at 7PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 22nd Sep)3.5ft (1.1m) 10s
Best Surf 7AM (Mon 28th Sep)11ft (3.5m) 14s
Most Powerful 7AM (Mon 28th Sep)11ft (3.5m) 14s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Tue morning. Very mild (max 16°C on Mon afternoon, min 6°C on Tue morning). Winds increasing (calm on Mon morning, fresh winds from the S by Tue night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Sat afternoon, min 8°C on Thu night). Winds increasing (calm on Sat morning, fresh winds from the N by Sat night).

Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
0
2
1
2
0
2
1
2
1
0
2
2
1
0
2
2
1
1
0
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
S
10
1.3
S
10
1.1
S
10
1.9
S
6
1.7
S
8
0.5
S
16
1.8
SSW
8
2
S
9
1.4
S
8
1.1
S
8
1
S
9
1
S
9
0.6
S
14
1
S
14
0.9
S
13
0.9
S
11
0.9
S
11
0.8
S
10
0.7
S
10
0.7
ESE
14
3.5
S
12
Wave Graph
Metric surfscale
Energy kJ
432
305
257
290
341
127
437
656
240
173
150
162
150
390
263
192
185
127
92
183
2943
Wind (km/h)
0
NNE
10
NE
10
WSW
25
SSW
0
SE
40
S
25
SW
25
SSW
10
W
5
NNE
15
NE
15
SW
5
S
5
E
15
NNE
5
NNE
5
E
10
NNW
20
WSW
25
S
30
SW
Wind State
glassy
on
off
cross-off
glassy
cross-off
off
cross-off
cross-off
on
on
off
cross-off
cross-on
cross-on
glassy
glassy
cross
cross-off
cross-off
off
High Tide
12:36PM1.38m
00:58AM1.26m
1:22PM1.37m
1:42AM1.26m
2:06PM1.38m
2:27AM1.27m
2:51PM1.39m
3:12AM1.30m
3:36PM1.40m
3:57AM1.33m
4:22PM1.42m
4:44AM1.38m
5:09PM1.43m
Low Tide
6:52PM0.33m
7:01AM0.32m
7:37PM0.32m
7:45AM0.30m
8:22PM0.31m
8:31AM0.27m
9:06PM0.28m
9:18AM0.24m
9:51PM0.25m
10:07AM0.22m
10:37PM0.22m
10:57AM0.19m
11:24PM0.19m
clear
clear
part cloud
mod rain
clear
rain showers
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
rain showers
mod rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:13
6:11
6:11
6:09
6:07
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:19
6:20
6:21
6:22
6:22
6:23
7:24
 mm
9
3
1
8
1
Temp °C
15
16
16
7
10
8
8
8
7
11
12
11
11
10
9
14
17
16
18
8
6
Feels °C
12
13
14
1
8
4
0
1
2
6
7
8
8
8
6
11
16
10
14
2
-2
  • 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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