Whangaehu River Mouth Surf Break

Lat Long: 40.05° S 175.10° E

Whangaehu River Mouth Surf Forecast and Surf Report

Issued: 5 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Whangaehu River Mouth sea temperature is
13.3°C
0.2° 

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


Whangaehu River Mouth surf forecast from 5 Sep 2026:

  • Best quality surf: Monday 7 Sep, 6AM (local time) - 4.5ft (1.3m), 9s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Sunday 13 Sep, 12AM (local time) - 8ft (2.5m), 14s period, WSW swell with 2,898 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 6AM (local time) - 4.5ft (1.3m), 9s period with WSW swell.

Best Forecast Surf Conditions for Whangaehu River Mouth this week:

The surf forecast for Whangaehu River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 6AM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.5m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Whangaehu River Mouth in the next 16 days are 2.5m 14s and forecast to arrive on Sunday (Sep 13) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (Sep 07) at 12PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Mon 7th Sep)4.5ft (1.3m) 9s
Best Surf 6AM (Mon 7th Sep)4.5ft (1.3m) 9s
Most Powerful12AM (Sun 13th Sep)8ft (2.5m) 14s

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


Short Range Forecast

Heavy rain (total 44mm), heaviest during Mon morning. Very mild (max 17°C on Sun afternoon, min 7°C on Tue night). Winds decreasing (fresh winds from the ESE on Mon afternoon, calm by Tue night).

Days 4-6 Weather Summary

Moderate rain (total 16mm), heaviest on Thu morning. Very mild (max 13°C on Fri morning, min 7°C on Thu night). Winds increasing (light winds from the NNW on Wed morning, strong winds from the W by Fri night).

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
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
0
2
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
17
0.8
SW
17
2.3
WNW
9
1
WSW
9
0.9
SSW
7
0.8
S
6
0.5
WSW
9
0.4
WSW
9
0.4
WSW
9
0.5
WSW
9
0.4
WSW
9
2.1
WNW
7
2.4
WNW
7
2.3
W
7
1.8
W
7
1
SW
19
1.1
SW
18
3
WSW
9
3
WSW
10
3.5
WSW
10
2.5
WSW
14
Wave Graph
Metric surfscale
Energy kJ
470
346
790
181
86
41
50
32
26
48
26
384
574
585
340
715
835
1302
1808
2702
2898
Wind (km/h)
20
NNW
25
NNW
15
NW
25
ESE
35
ESE
25
SE
5
SE
10
SW
5
NE
5
NNW
20
WNW
30
NW
30
NW
30
WNW
35
SSW
35
W
40
NW
40
W
40
W
45
WSW
30
WSW
Wind State
cross
cross
cross
cross-off
cross-off
cross-off
glassy
on
cross-off
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
5:19PM1.80m
6:08AM1.76m
6:50PM1.90m
7:30AM1.89m
7:59PM2.09m
8:30AM2.08m
8:51PM2.29m
9:17AM2.25m
9:35PM2.45m
9:58AM2.39m
10:14PM2.54m
10:35AM2.46m
10:51PM2.56m
Low Tide
11:07AM0.81m
00:20AM0.75m
12:57PM0.71m
1:42AM0.57m
2:04PM0.52m
2:37AM0.36m
2:52PM0.32m
3:20AM0.17m
3:33PM0.16m
3:58AM0.04m
4:09PM0.06m
4:31AM-0.03m
4:42PM0.01m
cloud
cloud
heavy rain
heavy rain
mod rain
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
rain showers
rain showers
part cloud
rain showers
rain showers
thunderstorm
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
6:31
6:31
6:28
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:01
6:02
6:04
6:05
6:06
 mm
15
15
10
4
4
2
4
2
4
3
3
Temp °C
16
17
15
11
9
8
11
11
9
12
12
11
12
12
10
13
12
11
10
10
11
Feels °C
12
11
12
6
2
2
8
8
7
7
7
5
6
6
4
5
5
4
1
0
4
  • 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 Whangaehu River Mouth Surf forecast

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

Are you planning a holiday in Wanganui and the Manawatu? If you are looking for accommodation near Whangaehu River Mouth, camping, hotels and holiday cottages in Wanganui and the Manawatu, consider staying in Wanganui which is 13 km (8 miles) away. Other places in and around Wanganui and the Manawatu where you can find information about places to rent, and car hire include Palmerston North which is 55 km (34 miles) away, Levin and Paraparaumu.

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