Porangahau River Mouth surfForecast / Wairarapa / New Zealand

information circle16 Day Weather and Surf, issued 12 pm Monday 23 Mar 2026 NZDT
Forecast update in hr  min  s Forecast update imminent
Porangahau River Mouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porangahau River Mouth sea temperature is
16.6° C
(Which is 1.0°C colder than average for this time of year)

Best Forecast Surf Conditions for Porangahau River Mouth this week:

The surf forecast for Porangahau River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Mar 25) at 4AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.6m and 5s. Another secondary swell of 0.9m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Porangahau River Mouth in the next 16 days are 1.8m 13s and forecast to arrive on Saturday (Mar 28) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Mar 29) at 7AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 25th Mar)1.5ft (0.5m) 13s
Best Surf10PM (Sat 28th Mar)6ft (1.8m) 13s
Most Powerful 7PM (Sat 28th Mar)6ft (1.8m) 13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 19°C on Tue morning, min 13°C on Mon morning). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Thu night. Warm (max 22°C on Sat afternoon, min 16°C on Thu afternoon). Winds decreasing (strong winds from the NE on Fri morning, light winds from the W by Sat night).

Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
2
4
3
2
3
Swell
Height Map
Wave Height (m) & direction (?)
1.1
SE
1.1
SE
0.8
SE
0.6
SE
0.4
ESE
0.5
ESE
0.5
ESE
0.5
ESE
0.5
ESE
1.4
ENE
2.2
ENE
3
ENE
3
ENE
2.5
NE
1.9
NE
2.2
E
1.7
ESE
1.8
ESE
1.7
ESE
1.7
ESE
1.4
ESE
Period(s) (?)1010109151413121267888881312121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)24121713051861089687791194238979698684076559831019890787550
Wind
(km/h)
5
NNE
20
ENE
15
N
15
N
25
NE
10
N
10
NNE
25
NE
20
ENE
30
NE
35
NE
40
NE
40
NE
40
NE
30
NNE
10
N
10
NNE
10
WNW
10
NW
10
NNE
10
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on
crosscrosscross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
cross-
off
cross-
off
crossoff
High Tide
/ height (m)
10:05PM
1.57
10:32AM
1.50
11:00PM
1.58
11:28AM
1.48
11:56PM
1.57
12:24PM
1.45
12:53AM
1.56
1:22PM
1.43
1:51AM
1.53
2:20PM
1.40
2:48AM
1.51
3:17PM
1.38
3:45AM
1.48
Low Tide
/ height (m)
3:54PM
0.06
4:26AM
0.05
4:47PM
0.06
5:22AM
0.06
5:42PM
0.08
6:18AM
0.08
6:37PM
0.10
7:15AM
0.10
7:34PM
0.11
8:13AM
0.12
8:30PM
0.13
9:09AM
0.14
9:27PM
0.15
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Sunrise7:18--7:18--7:20--7:20--7:22--7:22--7:24--
Sunset-7:21--7:20--7:17--7:15--7:15--7:13--7:10-
clear
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
cloud
cloud
mod rain
light rain
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
light rain
Rain (mm)
-----------82-------1
Temp. °C161614191915171817171716161717212218222219
Feels °C (?)1413111614131515151211991112212118222119
  • 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 Porangahau River Mouth Surf forecast

The above surf forecast table for Porangahau 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 Porangahau River Mouth can be found by selecting the local surf guide option on the grey menu. Our Porangahau 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 (Porangahau 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 Porangahau 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.

Porangahau River Mouth is 87 km (54 miles) from the city of Palmerston North. If you plan a holiday in The Wairarapa, look for hotels and other accommodation in Palmerston North. Palmerston North has rooms for a wide range of budgets as well as car hire and transport links.

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