Surf Forecasts:
Nera Rivermouth surf forecast from 6 Sep 2026:
- Best quality surf: Saturday 12 Sep, 2AM (local time) - 6ft (1.9m), 20s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 8AM (local time) - 10ft (3.0m), 18s period, SSW swell with 5,495 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 8PM (local time) - 4.5ft (1.4m), 14s 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 Sunday (Sep 06) at 8PM. The primary swell is predicted to be 1.4m and 14s 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 3.0m 18s and forecast to arrive on Saturday (Sep 12) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 9s period and expected on Saturday (Sep 12) at 5AM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 6th Sep) | 4.5ft (1.4m) 14s |
| Best Surf | 2AM (Sat 12th Sep) | 6ft (1.9m) 20s |
| Most Powerful | 8AM (Sat 12th Sep) | 10ft (3.0m) 18s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's have a look at the surf ahead for the next couple of weeks.
Well, to be honest, it's a pretty grim outlook for the Nera Rivermouth. The first real bit of swell that shows up on Sunday the 6th isn't worth paddling out for. The wave energy is moderate (818) but the wind is cross, the period is long at 14 seconds, and it's just too messy. The water temp is sitting at 73°F, which is bang on average for this time of year, so at least you won't be freezing.
We then hit a dead zone. From Monday, the 7th, right through to Friday, the 11th, it's essentially flat or poor. The wind is either onshore or cross-onshore, the swell is tiny, and the scores are a zero. It's a proper blank run.
Then, on Saturday the 12th of September, things get a bit wild. The combined energy of all swells directed here jumps to a massive 5286, with a 10ft swell from the SSW and a 17-second period. That is a lot of power, but it's a cross-shore wind, and the spot is a river and beach setup. For a river mouth, that long period groundswell can make things break a bit too straight. At 10ft, this is expert territory only, and with the wind, it's messy. The best of a bad bunch is probably the Saturday morning, but even then the score is a 2. Honestly, with that much power and the cross-shore wind, it might be more interesting for the kite crew than paddle surfers.
After that, it drops off again. Sunday the 13th has 6ft, but the wind picks up to 19 mph, creating a lumpy cross-chop. Then from the 14th, we are back to zero for a few days, with a tiny bit of weak, short-period junk showing up from the 15th onwards. A 4ft swell with a 6-second period on Tuesday the 15th is just not worth it. The rest of the run into the 21st is all tiny, weak, and messy.
There is no standout here. The best you could possibly hope for is the Saturday the 12th if you are an expert and don't mind the wind, but it's a gamble. For the rest of us, it's a waiting game.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 22°C on Sun morning, min 18°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri night. Warm (max 21°C on Wed morning, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 11 | SSW 12 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 22 | SSW 20 | SSW 20 | SSW 17 | SSW 17 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 433 | 911 | 506 | 203 | 170 | 263 | 183 | 156 | 133 | 204 | 313 | 263 | 380 | 531 | 365 | 273 | 459 | 2810 | 5286 | 4193 | 2338 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | on | cross-on | glassy | on | on | cross-on | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross | cross-off |
High Tide | 2:42PM1.07m | 1:35AM1.11m | 3:37PM1.14m | 2:41AM1.15m | 4:23PM1.20m | 3:39AM1.19m | 5:03PM1.25m | 4:34AM1.21m | 5:41PM1.28m | 5:25AM1.21m | 6:16PM1.29m | 6:15AM1.19m | 6:49PM1.27m | ||||||||
Low Tide | 8:05PM0.68m | 8:38AM0.13m | 9:08PM0.63m | 9:31AM0.09m | 10:01PM0.56m | 10:18AM0.07m | 10:48PM0.48m | 11:01AM0.09m | 11:32PM0.41m | 11:43AM0.14m | 00:15AM0.35m | 12:23PM0.22m | 00:57AM0.31m | ||||||||
 | |  | | | | | |  |  | | | | |  | | | | | | | |
 | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — |
mm | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 22 | 22 | 21 | 21 | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 20 | 20 | 20 | 19 |
Feels °C | 21 | 20 | 20 | 20 | 20 | 20 | 21 | 20 | 21 | 19 | 18 | 19 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 11 | SSW 12 | SSW 15 | SSW 14 | SSW 13 | SSW 10 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 22 | SSW 20 | SSW 20 | SSW 17 | SSW 17 | SSW 16 |
| kJ | 433 | 911 | 506 | 200 | 169 | 263 | 183 | 156 | 130 | 204 | 313 | 263 | 380 | 531 | 365 | 273 | 459 | 2810 | 5286 | 4193 | 2338 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | — | SE 5 | SSW 19 | SSW 17 | SE 8 | SE 8 | E 8 | SSW 12 | SSW 12 | SW 10 | S 12 | SSE 11 | SSE 10 | SSW 18 | SSW 17 | SSW 16 | — | — | — | — |
| kJ | 385 | — | 6 | 203 | 170 | 3 | 2 | 1 | 133 | 189 | 25 | 12 | 12 | 10 | 30 | 113 | 144 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 4 | SE 8 | — | W 8 | E 8 | SW 7 | SW 15 | S 21 | SW 20 | SSW 19 | SSW 18 | SSW 24 | SSW 17 | SSW 24 | — | — | — | — |
| kJ | — | — | — | 1 | 3 | — | 1 | 1 | 2 | 8 | 9 | 15 | 36 | 31 | 54 | 111 | 317 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SE 4 | — | — | — | — | — | SW 8 | — | — | — | — | — | S 3 | — | S 10 | S 10 | S 8 | — | — | — |
| kJ | — | 7 | — | — | — | — | — | 2 | — | — | — | — | — | 2 | — | 339 | 377 | 223 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1297 | 1295 | 0 | 149 | 1357 | 0 | 550 | 550 | 38 | 1292 | 1292 | 0 | 1297 | 1491 | 1361 | 1361 | 1361 | 0 | 1404 | 1361 | 0 |
Best forecast wave conditions in New Caledonia | |||||||||||||||||||||
Best forecast wave conditions in New Caledonia | |||||||||||||||||||||
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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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