Nera Rivermouth Surf Break

Lat Long: 21.62° S 165.46° E

Nera Rivermouth Surf Forecast and Surf Report

Issued: 10 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nera Rivermouth sea temperature is
22.9° C
0.5° 

Nera Rivermouth surf forecast from 20 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 8AM (local time) - 3ft (0.9m), 16s period, SSW swell with offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 5PM (local time) - 4.5ft (1.4m), 15s period, SSW swell with 833 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 5PM (local time) - 4ft (1.2m), 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 Monday (Aug 24) at 5PM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.3m and 20s. 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 1.4m 15s and forecast to arrive on Tuesday (Aug 25) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Friday (Aug 21) at 11AM.

Wave TypeTime (+11) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Mon 24th Aug)4ft (1.2m) 6s
Best Surf 8AM (Tue 25th Aug)3ft (0.9m) 16s
Most Powerful 5PM (Tue 25th Aug)4.5ft (1.4m) 15s

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


The Lowdown

Alright, let’s get into it for the Nera Rivermouth. Gonna be a lean run, no two ways about it.

This spot is a sheltered, inconsistent river and beach break, and for the first few days, it’s dead flat. From Thursday the 20th through to Monday morning the 24th, there’s nothing but clean, glassy water. The water temp is running about 73°, which is normal for this time of year, so no drama there.

The first little pulse shows up on Monday afternoon, the 24th. A tiny, short-period SE swell rolls in at about 4 ft, but with a period of just 6 seconds, it’s gonna be a bit of a mess. The combined swell energy is moderate (161), and the wind is a gentle cross-off, so conditions are ordinary. Not worth a paddle.

The one real highlight comes on Tuesday the 25th. A solid SSW groundswell builds to 4 ft in the morning and 5 ft in the afternoon, with a very long period of 15–16 seconds. That’s proper energy, with readings of 783 and 833—strong stuff. The offshore wind is NE in the morning, which will clean it up nicely, and cross-off later. Groundswell like this favours the river mouth, so expect lined-up waves with long lulls. This is the best of the whole forecast.

Wednesday the 26th keeps the theme going, with similar SSW swell around 4–4 ft, periods of 14–15 seconds, and moderate-to-strong energy (459–615). Winds stay cross-off, so it’s still rideable, but the quality eases off a bit.

From Thursday the 27th, the swell drops below 3 ft, the energy fades, and by Friday the 28th, the wind turns onshore and then cross-on, killing the surf. After that, it’s a long stretch of tiny, weak windswell and choppy cross-shore winds right through the first week of September. The last few days show 0.7 ft waves with messy periods—nothing to get out of bed for.

So, if you’re keen, lock in Tuesday the 25th and maybe Wednesday the 26th. The rest is a waiting game.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Mon morning, min 19°C on Mon night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
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
1
1
2
2
2
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSE
10
0.4
SSW
15
0.3
SSW
14
0.2
SSW
13
0.2
SSW
13
0.1
SW
14
0.7
SE
10
1.5
SE
8
0.7
SSE
10
0.6
SSE
9
0.8
SE
7
0.5
SE
7
0.3
SE
9
1.2
SE
6
0.5
SSW
18
1.3
SSW
16
1.4
SSW
15
1.3
SSW
14
1.2
SSW
15
1.1
SSW
14
0.9
SSW
14
Wave Graph
Metric surfscale
Energy kJ
0
88
38
16
18
8
0
0
0
0
0
0
0
86
180
783
833
678
580
459
351
Wind (km/h)
10
SE
15
ESE
5
ENE
15
ESE
20
ESE
5
E
10
ESE
15
SE
5
ENE
10
ESE
10
ESE
10
NE
5
ENE
10
E
5
NE
10
ESE
15
ESE
10
NE
10
E
15
SE
5
NE
Wind State
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
off
off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
off
High Tide
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
5:07PM1.08m
4:01AM1.10m
5:36PM1.12m
4:41AM1.13m
Low Tide
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
10:14AM0.20m
10:31PM0.63m
10:49AM0.17m
11:08PM0.59m
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:16
6:16
6:16
6:15
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
5:45
5:45
5:45
5:45
 mm
Temp °C
21
21
20
20
21
20
22
22
21
23
23
22
24
24
22
24
24
21
23
23
21
Feels °C
18
17
19
18
17
19
21
19
20
23
22
22
25
23
21
24
23
20
23
21
21
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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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