Catlins River Mouth surfForecast / Catlins / New Zealand

information circle16 Day Weather and Surf, issued 12 am Saturday 28 Mar 2026 NZDT
Forecast update in hr  min  s Forecast update imminent
Catlins River Mouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Catlins River Mouth sea temperature is
14.6° C
(Which is 2.8°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Catlins River Mouth this week:

The surf forecast for Catlins River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Mar 28) at 10AM. The primary swell is predicted to be 2.1m and 12s period with a secondary swell of 0.6m and 16s. Another secondary swell of 0.4m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Catlins River Mouth in the next 16 days are 4.5m 13s and forecast to arrive on Tuesday (Mar 31) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Monday (Mar 30) at 10AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sat 28th Mar)7ft (2.1m) 12s
Best Surf10PM (Mon 30th Mar)13ft (4.0m) 13s
Most Powerful10AM (Tue 31st Mar)15ft (4.5m) 13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 31mm), heaviest during Fri night. Very mild (max 16°C on Fri night, min 11°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the WSW by Mon afternoon).

Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Wed afternoon, min 9°C on Tue night). Winds decreasing (fresh winds from the W on Mon night, calm by Thu afternoon).

Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Fri
03
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
4
1
1
0
1
4
3
2
!
!
!
3
4
3
4
3
2
3
3
3
Swell
Height Map
Wave Height (m) & direction (?)
3
E
2.1
E
1.7
E
1.3
E
1.1
E
0.7
SW
2
SSW
2.2
SSW
1.7
SSW
4
SW
4.5
SSW
4
SSW
2.4
SSW
2.1
SSW
1.6
SSW
2.5
SW
1.2
S
1.1
S
1.7
SSE
1.7
SSE
1.5
SSE
Period(s) (?)12121110912171616121313141414131111131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)223911946583131981592215235814115456664555522182170091522743482779891013732
Wind
(km/h)
10
WSW
15
WSW
20
SSW
10
NE
20
NE
10
ENE
5
NW
20
W
35
WSW
35
W
30
WSW
30
WSW
15
W
10
NW
10
WSW
10
W
5
NNW
5
E
5
NW
5
NNW
0
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
crosscrosscrosscrossglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
glassoffoffglass
High Tide
/ height (m)
11:52PM
2.25
12:19PM
2.25
12:52AM
2.29
1:15PM
2.31
1:45AM
2.34
2:05PM
2.37
2:32AM
2.38
2:49PM
2.43
3:15AM
2.42
3:31PM
2.46
3:54AM
2.44
4:11PM
2.47
4:31AM
2.44
4:49PM
2.45
Low Tide
/ height (m)
6:05AM
0.95
6:33PM
0.81
7:05AM
0.87
7:29PM
0.75
7:57AM
0.80
8:19PM
0.70
8:42AM
0.75
9:04PM
0.69
9:24AM
0.73
9:46PM
0.71
10:04AM
0.75
10:26PM
0.77
10:43AM
0.79
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Fri
03
Sunrise-7:52--7:54--7:54--7:56--7:58--7:58--8:00-
Sunset--7:38--7:37--7:35--7:32--7:30--7:29--7:27
mod rain
clear
cloud
light rain
light rain
light rain
heavy rain
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
clear
Rain (mm)
9--32116--------------
Temp. °C161615121415151512111111101619161919172021
Feels °C (?)171312111315169434561316131718161921
  • 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 Catlins River Mouth Surf forecast

The above surf forecast table for Catlins River Mouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Catlins River Mouth can be found by selecting the local surf guide option on the grey menu. Our Catlins River Mouth 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 (Catlins River Mouth) 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 Catlins River Mouth 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.

Catlins River Mouth is 91 km (57 miles) from Dunedin. If you plan a holiday in Catlins, look for hotels and other accommodation in Dunedin. Dunedin has rooms for a wide range of budgets as well as car hire and transport links.

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