Nera Rivermouth Surf Break

Lat Long: 21.62° S 165.46° E

Nera Rivermouth Surf Forecast and Surf Report

Issued: 4 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nera Rivermouth sea temperature is
23.0° C
0.5° 

Nera Rivermouth surf forecast from 17 Aug 2026:

  • Best quality surf: Monday 24 Aug, 11PM (local time) - 3.5ft (1.0m), 17s period, SSW swell with offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 5AM (local time) - 4.5ft (1.3m), 15s period, SSW swell with 725 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 5PM (local time) - 4.5ft (1.4m), 6s period with SE 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 Sunday (Aug 23) at 5PM. The primary swell is predicted to be 1.4m and 6s 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 1.3m 15s and forecast to arrive on Tuesday (Aug 25) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 13s period and expected on Tuesday (Aug 18) at 11AM.

Wave TypeTime (+11) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sun 23rd Aug)4.5ft (1.4m) 6s
Best Surf11PM (Mon 24th Aug)3.5ft (1.0m) 17s
Most Powerful 5AM (Tue 25th Aug)4.5ft (1.3m) 15s

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


The Lowdown

Alright, grab your wetsuit, let’s see what we’ve got. To be honest, the next week and a half is pretty bleak around here. We’ve got a long stretch of small, jumbled surf and shifty cross-shore breezes that are going to make things feel messier than they look. There are a few windows where it cleans up, but the swell just isn't there. It’s one of those waiting games.

The one spot that’s on the radar is Nera Rivermouth. For a river mouth, it's fairly sheltered, but that also means it needs a decent push of swell to get going. The start of the window is a write-off. Tuesday the 18th through to Thursday the 20th are all poor, with the swell all over the place and winds cross-shore. The energy is weak, under 100, and there’s just no love there. Friday the 21st and Saturday the 22nd are flat, clean but flat. Sunday the 23rd is the first time it gets its act together, but it’s a weak, short-period bump. Forget it, it’ll be closing out and messy.

Now, here’s where it gets interesting. We've got a solid stretch from Monday the 25th through to Thursday the 27th. This is the standout. The winds go light and offshore, and for a couple of those mornings it turns totally glassy. The swell kicks up to around 4ft, coming from the SSW, and the period starts to push up into the 14-17 second range. That’s proper groundswell for this spot. The combined energy is strong, around 679 to 907, so there’s real power behind it. But, and it's a big but, long-period groundswell like that can run a bit straight at a river mouth. You’ll want to pick your waves, but when it connects, it’ll be worth the paddle. It's a beginner-friendly break, so with that size it's still okay, but keep an eye on your positioning with those long-period sets.

After that, it backs off again. Friday the 28th and Saturday the 29th fade quickly, and the wind goes onshore and bumpy. Then there's a little tease on Sunday the 30th and Monday the 31st – small, clean, offshore winds, but the swell is really small, only around 2-3ft. It's ridable but pretty ordinary.

The last couple of days, the 1st and 2nd of September, the weather turns against us with rain and onshore winds, so that’s a no-go.

So, if you want the best of it, you’re looking at that mid-week, the 25th to 27th. It’s not going to be huge, but the conditions will be clean. The water temp is sitting at 73°, which is about normal for this time of year, nothing weird going on there.

It’s a slow start, but the ocean’s got a pulse. Hang in there.

Rusty

Short Range Forecast

Mostly dry. Warm (max 21°C on Thu morning, min 18°C on Tue night). Winds decreasing (fresh winds from the SE on Tue afternoon, light winds from the E by Thu night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Sat afternoon, min 18°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
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SSW
15
1
SSW
15
0.9
SSW
14
0.8
SSW
14
0.6
SSW
13
0.5
SSW
12
0.7
S
9
0.4
SW
15
0.3
SSW
14
1.5
SE
8
1.6
SE
8
0.1
SW
14
0.6
SE
10
0.9
SSE
10
0.7
SSE
10
0.6
SSE
9
1.4
SE
6
0.5
SSE
7
0.3
SSW
21
0.6
SSW
19
1.1
SSW
16
Wave Graph
Metric surfscale
Energy kJ
505
428
293
207
135
85
0
57
38
0
0
8
0
0
0
0
132
0
86
280
590
Wind (km/h)
25
SE
30
SE
20
SE
15
SE
30
SE
10
E
10
E
20
SE
5
ENE
20
ESE
20
SE
5
ENE
10
ESE
15
ESE
5
ENE
10
ESE
10
SE
5
NE
5
ESE
10
SE
10
NE
Wind State
cross
cross
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross
off
High Tide
10:10AM0.97m
10:04PM1.12m
11:23AM0.92m
10:47PM1.07m
12:47PM0.90m
11:37PM1.02m
2:09PM0.92m
00:36AM1.00m
3:13PM0.95m
1:37AM1.01m
3:59PM0.99m
2:31AM1.03m
4:35PM1.03m
3:18AM1.07m
Low Tide
3:43PM0.54m
4:54AM0.38m
4:37PM0.64m
5:57AM0.37m
5:47PM0.71m
7:01AM0.36m
7:06PM0.73m
8:01AM0.33m
8:15PM0.73m
8:52AM0.28m
9:09PM0.70m
9:36AM0.24m
9:52PM0.67m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:18
6:18
6:16
6:16
6:16
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:44
5:44
5:45
5:45
5:45
5:45
5:45
 mm
Temp °C
20
20
19
19
20
19
21
21
20
21
22
21
22
23
21
23
23
22
24
24
22
Feels °C
14
14
13
15
14
13
19
17
18
18
19
20
21
21
20
23
22
23
25
23
22
  • 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 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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