Haumoana River Mouth Surf Break

Lat Long: 39.60° S 176.95° E

Haumoana River Mouth Surf Forecast and Surf Report

Issued: 11 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Haumoana River Mouth sea temperature is
11.9° C
1.6° 

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


Haumoana River Mouth surf forecast from 18 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 9PM (local time) - 4.5ft (1.3m), 9s period, ESE swell with offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 3AM (local time) - 4.5ft (1.4m), 11s period, SE swell with 515 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 9PM (local time) - 4.5ft (1.3m), 9s period with ESE swell.

Best Forecast Surf Conditions for Haumoana River Mouth this week:

The surf forecast for Haumoana River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 9PM. The primary swell is predicted to be 1.3m and 9s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Haumoana River Mouth in the next 16 days are 1.4m 11s and forecast to arrive on Wednesday (Aug 19) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 11s period and expected on Wednesday (Aug 19) at 12PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 19th Aug)4.5ft (1.3m) 9s
Best Surf 9PM (Wed 19th Aug)4.5ft (1.3m) 9s
Most Powerful 3AM (Wed 19th Aug)4.5ft (1.4m) 11s

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


The Lowdown

Well, folks, it’s Rusty here, and I gotta be straight with you. The next couple of weeks are looking pretty bleak for a proper paddle. We’ve got a long stretch of small, weak surf and messy winds ahead, so if you’re jonesing for a wave, you might want to find another hobby for a while.

The water’s a bit colder than usual for this time of year, so you’ll want the thick suit on if you do venture out. We’re talking about 53° water, which is a good 3° below average, so it’s going to feel crisp.

Right now, and for the next several days, we’re looking at a whole lot of nothing. The swell energy is weak, with readings mostly in the low hundreds – that’s not going to get anyone excited. The surf at Haumoana River Mouth is tiny and the wind is all over the place, mostly cross-off which isn't doing us any favors. Early on, we see some 3ft to 5ft swell, but it’s short period, around 8-10 seconds, and the conditions are just poor. There might be a small window on Thursday morning the 20th when the wind goes light offshore and the surf is a clean but tiny 3ft. It’s surfable, but you’ll be bouncing on a longboard, not ripping.

After that, it just fades away. From the 22nd through to the end of the month, we’re looking at dribble. Swell heights drop to 0.3ft, 0.7ft, maybe 1ft if we’re lucky. The combined energy numbers are in the single digits and teens – that’s about as weak as it gets. The good news is there are a few windows of clean, glassy conditions, like the morning of the 27th, and a couple of mornings with light offshore breezes. But clean, tiny onshore slop is still slop. It’s just not worth the effort.

The wave period does stretch out to 13-14 seconds for a bit, but with that little swell behind it, it doesn't mean a thing. We do see a jump in the longer period on the 23rd, but again, the actual wave height is a paltry 0.7ft.

We’re looking at a real dry spell here. It’s not a normal spike of bad luck; this is a pattern of just no swell generation at all. The whole first week of this outlook is basically a write-off.

Now, looking further out into the second week, there’s a tiny glimmer. On the 30th, we see a tiny 1ft bump with a clean cross-off wind, and then again on the 1st of September, a slight increase to 2ft with a glassy morning. These are not waves that will get your heart pumping, but for a desperate soul on a longboard, it’s something. The period is short, though, around 7-8 seconds, so it doesn't have much push.

Honestly, the most interesting thing on offer is the morning of September 2nd, where the wind is light offshore and clean, but the swell is an absolute zero at 0.3ft. That’s not surfing.

So, plain and simple: there is nothing good on offer in this 16-day stretch. It’s a blank run, and for this area, it’s just one of those times. You’re better off doing something else for a while. Forecasts can change, so I’ll keep an eye on things, but as it stands, leave the boards in the car.

Rusty, out.

Short Range Forecast

Light rain (total 8mm), mostly falling on Tue afternoon. Very mild (max 13°C on Thu morning, min 6°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue night, calm by Thu night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Sun morning, min 7°C on Fri night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
1
2
1
0
1
1
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
SE
9
1.1
SE
10
1.3
SE
12
1.2
ESE
10
1.5
SE
9
1.3
ESE
9
0.9
ESE
8
0.9
SE
8
0.7
SE
8
0.7
ESE
9
0.7
ESE
10
0.4
ESE
10
0.4
SE
10
0.2
ESE
10
0.2
ESE
13
0.2
ESE
13
0.2
ESE
13
0.2
ESE
12
0.1
E
13
0.2
ESE
13
0.2
ESE
13
Wave Graph
Metric surfscale
Energy kJ
132
246
433
251
373
255
123
100
72
71
90
37
23
9
17
17
17
15
4
17
16
Wind (km/h)
30
SW
35
SW
35
SSW
30
SW
20
SSW
15
WSW
10
WSW
15
SE
5
N
5
NW
10
ENE
10
W
10
NW
10
NW
10
NW
15
WNW
15
W
20
WNW
15
WNW
10
NW
15
NW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-on
glassy
cross-off
on
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
9:46AM1.51m
10:08PM1.51m
10:36AM1.48m
10:57PM1.44m
11:24AM1.44m
11:46PM1.39m
12:12PM1.41m
00:33AM1.35m
1:00PM1.39m
1:21AM1.31m
1:48PM1.37m
2:09AM1.30m
2:36PM1.37m
2:56AM1.29m
Low Tide
4:02PM0.15m
4:27AM0.15m
4:52PM0.20m
5:14AM0.21m
5:40PM0.26m
6:00AM0.26m
6:28PM0.30m
6:46AM0.30m
7:16PM0.34m
7:32AM0.33m
8:03PM0.36m
8:18AM0.34m
8:51PM0.36m
part cloud
rain showers
light rain
cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
6:52
6:52
6:50
6:48
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:37
5:37
5:38
5:38
5:39
5:40
 mm
3
5
Temp °C
11
9
7
8
10
9
13
12
10
13
13
11
15
16
16
18
18
13
17
18
14
Feels °C
3
1
-1
1
4
5
10
8
9
10
9
9
12
13
12
13
14
7
13
15
11
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  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Haumoana River Mouth Surf forecast

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

Haumoana River Mouth is 9 km (6 miles) from the city of Hastings. If you plan a holiday in Hawkes Bay, look for hotels and other accommodation in Hastings. Hastings has rooms for a wide range of budgets as well as car hire and transport links.

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