Clarence River Surf Break

Lat Long: 42.15° S 173.93° E

Clarence River Surf Forecast and Surf Report

Issued: 5 am 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Clarence River sea temperature is
10.2° C
0.4° 

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 13 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 12AM (local time) - 5.5ft (1.7m), 11s period, ESE swell with offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 6AM (local time) - 10ft (3.0m), 10s period, S swell with 1,507 kJ wave energy.
  • Next surfable swell (1★+): Friday 14 Aug, 9AM (local time) - 2.5ft (0.8m), 8s period with ENE 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 Friday (Aug 14) at 9AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.4m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Clarence River in the next 16 days are 3.0m 10s and forecast to arrive on Wednesday (Aug 19) at 6AM. 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 Saturday (Aug 15) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Fri 14th Aug)2.5ft (0.8m) 8s
Best Surf12AM (Tue 18th Aug)5.5ft (1.7m) 11s
Most Powerful 6AM (Wed 19th Aug)10ft (3.0m) 10s

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


Short Range Forecast

Moderate rain (total 11mm), heaviest on Sat night. Very mild (max 12°C on Fri morning, min 5°C on Sat night). Winds increasing (calm on Fri afternoon, strong winds from the SSW by Sat night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Wed morning, min 8°C on Mon morning). Mainly fresh winds.

Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
1
0
1
2
2
3
2
2
4
3
1
3
3
2
3
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
ENE
8
0.6
ENE
8
0.8
E
7
0.4
SSW
17
0.4
SSW
16
2.5
SSW
7
2.5
S
8
3
S
8
1.6
SE
9
2.1
SSE
8
1.7
SE
10
1.7
ESE
11
2.3
S
8
1.9
S
8
2.4
S
10
2.3
S
9
2
S
9
1.9
S
9
1.7
S
9
1.5
S
9
1.3
S
10
Wave Graph
Metric surfscale
Energy kJ
79
49
67
94
89
593
747
1029
390
638
569
726
667
488
1102
917
595
524
455
380
347
Wind (km/h)
10
SSW
5
SSE
5
N
15
SSW
30
SSW
45
SSW
35
SW
45
SSW
30
SW
30
SW
30
SSW
25
SW
25
SW
30
SSW
25
SW
25
SW
25
SSW
25
SSW
10
SW
15
S
5
NNW
Wind State
cross-off
cross-off
cross-on
off
cross-off
off
off
off
off
off
off
off
off
cross-off
off
off
cross-off
cross-off
off
cross-off
cross-on
High Tide
6:00PM1.66m
6:25AM1.51m
6:54PM1.61m
7:20AM1.50m
7:47PM1.55m
8:14AM1.48m
8:40PM1.49m
9:08AM1.46m
9:32PM1.43m
10:00AM1.44m
10:23PM1.37m
10:51AM1.42m
11:13PM1.33m
Low Tide
11:44AM-0.00m
00:23AM0.04m
12:40PM0.02m
1:16AM0.05m
1:36PM0.06m
2:08AM0.08m
2:31PM0.11m
2:58AM0.13m
3:25PM0.17m
3:48AM0.18m
4:17PM0.22m
4:36AM0.23m
5:07PM0.27m
clear
clear
clear
part cloud
cloud
light rain
light rain
rain showers
rain showers
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:16
7:15
7:13
7:11
7:11
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:40
5:42
5:43
5:44
5:45
5:45
 mm
4
2
2
3
Temp °C
12
12
11
11
10
7
7
7
6
9
9
9
11
11
11
13
12
9
11
11
9
Feels °C
10
10
10
7
4
-2
-3
-3
-3
1
2
3
4
4
4
7
7
4
6
7
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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