Nera Rivermouth Surf Break

Lat Long: 21.62° S 165.46° E

Nera Rivermouth Surf Forecast and Surf Report

Issued: 10 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Nera Rivermouth sea temperature is
22.9°C
0.4° 

Nera Rivermouth surf forecast from 1 Sep 2026:

  • Best quality surf: Wednesday 2 Sep, 5AM (local time) - 6ft (1.9m), 15s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 6ft (1.9m), 15s period, SSW swell with 1,519 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 5AM (local time) - 6ft (1.9m), 15s period with SSW swell.

Best Forecast Surf Conditions for Nera Rivermouth this week:

The surf forecast for Nera Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 02) at 5AM. The primary swell is predicted to be 1.9m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nera Rivermouth in the next 16 days are 1.9m 15s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 14s period and expected on Wednesday (Sep 02) at 8PM.

Wave TypeTime (+11) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 2nd Sep)6ft (1.9m) 15s
Best Surf 5AM (Wed 2nd Sep)6ft (1.9m) 15s
Most Powerful 5AM (Wed 2nd Sep)6ft (1.9m) 15s

Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on offer for Nera Rivermouth over the next couple of weeks.

First off, I gotta be straight with you – the next ten days or so are looking pretty bleak. This is a sheltered spot, and it’s just not catching much of the swell that’s out there. The water temp is sitting about average for the time of year, so that’s not your problem. The problem is that from Wednesday the 2nd right through to the morning of Monday the 14th, we’re looking at a whole lot of nothing. There are a few days where a little pulse of energy comes through, like the 2nd with a 6ft swell from the SSW and a solid 15-second period, but the wind is all cross-shore and the wave comment says it’s marginal. The combined energy is reading 1459 (moderate to strong), but the conditions just aren’t there to make it worthwhile. The rating is low across the board. Honestly, it’s a long stretch of coffee-sipping and board-waxing, not paddling out.

Now, for the patient ones among you, things finally start to look up. On Tuesday the 15th of September, we get a bit of morning glass. The wind is almost nothing, a slight air, and the water goes glassy. The swell is only 3ft from the SSW with a period of 10 seconds, and the combined energy is a weak 234, but it’s surfable. It’s not a standout, but it’s the first sign of life.

But the real gem, the one to circle on the calendar, is Wednesday the 16th of September. In the morning, we’ve got a 4ft SSW swell with a very long 21-second period – that’s proper groundswell energy. The wind is light and cross-offshore, making for clean conditions. The combined energy is 994 (moderate). That’s a great window for a river-mouth setup like this. Then in the afternoon of the same day, it really cranks. The swell jumps to 10ft from the SSW with an 18-second period. That’s a big, powerful swell. The wind stays light and cross-offshore, and the combined energy is a massive 5377 (very strong). This is excellent surf, but I gotta warn you – at 10ft, this is for experienced surfers only. It’ll be too big for beginners.

Then on Thursday the 17th of September, we get a clean-up set. A 8ft SSW swell with a 15-second period, and the wind finally goes offshore from the NNE at 10 km/h. The combined energy is 2515 (strong). This is another excellent day for the experts, with clean, lined-up waves rolling in.

So, the standout is the afternoon of Wednesday the 16th, and the morning of Thursday the 17th is a close second. The best on offer is clearly that Wednesday window – big, clean, and powerful. For the rest of the run, it’s mostly a waiting game. The river mouth can be inconsistent, as we’ve seen, and crowds are possible when it’s good, so get there early if you’re chasing that Wednesday session.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Fri afternoon, min 19°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Fri night, min 18°C on Sat night). Wind will be generally light.

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
2
0
1
0
1
0
0
1
0
0
1
1
0
2
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
SSW
15
1.9
SSW
15
1.8
SSW
14
1.7
SSW
14
1.5
SSW
13
1.3
SSW
12
1.1
SSW
12
0.2
SSW
18
0.5
SSW
11
0.5
SSW
18
0.6
SSW
16
0.7
SSW
16
0.7
SSW
16
1.2
SSW
16
1.4
SSW
14
1.1
SSW
13
1
SSW
11
0.7
SSW
12
0.8
SSW
16
Wave Graph
Metric surfscale
Energy kJ
0
1459
1224
0
703
0
367
32
71
190
175
212
220
671
800
427
247
138
295
Wind (km/h)
5
ENE
10
SE
10
SE
5
NNE
10
S
10
SE
5
NNE
10
SSE
20
SE
10
NE
10
SE
20
SE
10
NNE
10
SE
15
SE
5
NNE
15
SSE
25
SE
10
ESE
Wind State
cross-off
cross
cross
glassy
cross-on
cross
cross-off
cross
cross
off
cross
cross
off
cross
cross
cross-off
cross-on
cross
cross-off
High Tide
8:36PM1.19m
9:31AM1.00m
9:18PM1.15m
10:44AM0.97m
10:08PM1.12m
12:09PM0.97m
11:11PM1.09m
1:33PM1.01m
00:23AM1.09m
2:42PM1.07m
1:35AM1.11m
3:37PM1.14m
2:41AM1.15m
Low Tide
3:10AM0.33m
3:01PM0.54m
4:07AM0.31m
3:58PM0.63m
5:14AM0.29m
5:15PM0.69m
6:27AM0.25m
6:46PM0.71m
7:37AM0.19m
8:05PM0.68m
8:38AM0.13m
9:08PM0.63m
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:05
6:05
6:05
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:47
5:49
5:49
5:49
5:49
5:50
 mm
Temp °C
20
21
21
21
22
21
20
22
23
22
22
22
20
22
22
21
22
22
20
Feels °C
16
19
19
20
21
19
19
21
20
22
20
18
18
21
19
20
21
19
17
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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 Nera Rivermouth Surf forecast

The above surf forecast table for Nera Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nera Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Nera Rivermouth 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 (Nera Rivermouth) 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 Nera Rivermouth 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 New Caledonia? If you are looking for accommodation near Nera Rivermouth, camping, hotels and holiday cottages in New Caledonia, consider staying in Poro which is 38 km (24 miles) away. Other places in and around New Caledonia where you can find information about places to rent, and car hire include Kouaoua which is 44 km (27 miles) away and Thio, 78 km (48 miles) away.

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