Clarence River surf break

Clarence River surfForecast / Kaikoura and Marlborough / New Zealand

information circle12 Day Weather and Surf, issued 6 am Monday 01 Dec 2025 NZDT
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
13.7° 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 Monday (Dec 01) at 10AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.4m and 4s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Clarence River in the next 12 days are 3.5m 8s and forecast to arrive on Thursday (Dec 04) 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 1.9m 7s period and expected on Sunday (Dec 07) at 7PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+)10AM (Mon 1st Dec)2.5ft (0.8m) 9s
Best Surf 7PM (Thu 4th Dec)8ft (2.4m) 9s
Most Powerful 7AM (Thu 4th Dec)11ft (3.5m) 8s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 20mm), heaviest during Wed afternoon. Very mild (max 19°C on Tue afternoon, min 11°C on Wed night). Winds increasing (calm on Mon night, strong winds from the SSW by Wed night).

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Fri afternoon, min 13°C on Thu night). Mainly fresh winds.

Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
0
1
0
0
0
2
2
3
2
1
0
1
1
0
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.8
ENE
0.9
ENE
0.8
ENE
0.7
ENE
0.7
E
0.6
E
0.6
E
0.6
E
3
SSW
3
S
2.5
SSE
1.9
SE
1.6
SE
1.3
SE
1.1
SE
0.8
SE
0.6
SE
0.6
SSW
0.5
NE
0.4
SSW
0.3
S
Period(s) (?)910111110101097899910109912778
Wave
Graph
(?)Metric surfscale
Energy kJ (?)961461611191047167619651247107455041934120410368123251711
Wind
(km/h)
10
SSE
10
SE
5
NNW
10
SE
5
SSE
30
SSW
25
SSW
30
SSW
45
SSW
35
SW
20
S
10
N
10
NE
15
NE
10
NW
5
NNE
10
SE
15
NNE
5
NNE
10
W
15
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscross-
on
crosscross-
off
offcross-
off
cross-
off
offoffcross-
off
cross-
on
ononcrossglasscrosscross-
on
glasscross-
off
cross
High Tide
/ height (m)
1:59PM
1.44
2:30AM
1.46
2:54PM
1.47
3:26AM
1.55
3:51PM
1.49
4:23AM
1.63
4:49PM
1.52
5:20AM
1.70
5:47PM
1.54
6:18AM
1.75
6:45PM
1.55
7:16AM
1.77
7:43PM
1.54
Low Tide
/ height (m)
8:15PM
0.14
8:43AM
0.15
9:08PM
0.09
9:42AM
0.10
10:03PM
0.06
10:43AM
0.06
11:00PM
0.02
11:43AM
0.03
11:58PM
-0.00
12:43PM
0.01
12:57AM
-0.02
1:42PM
-0.00
1:55AM
-0.02
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Sunrise5:43--5:43--5:41--5:41--5:41--5:41--5:41--
Sunset-8:42--8:43--8:44--8:45--8:46--8:47--8:49-
clear
part cloud
part cloud
clear
part cloud
part cloud
light rain
mod rain
rain showers
clear
clear
clear
clear
clear
cloud
part cloud
cloud
part cloud
clear
clear
clear
Rain (mm)
------2810------------
Temp. °C171715171917131212151514202322211718252521
Feels °C (?)15161415181487581112182121201617242318
  • 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 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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