
Surf Forecasts:
Nera Rivermouth surf forecast from 3 Sep 2026:
- Best quality surf: Sunday 6 Sep, 5AM (local time) - 3.5ft (1.0m), 15s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 6 Sep, 5PM (local time) - 5ft (1.5m), 14s period, SSW swell with 911 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 11PM (local time) - 1.5ft (0.4m), 19s 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 Friday (Sep 04) at 11PM. The primary swell is predicted to be 0.4m and 19s period with a secondary swell of 0.8m and 5s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nera Rivermouth in the next 16 days are 1.5m 14s and forecast to arrive on Sunday (Sep 06) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 10s period and expected on Wednesday (Sep 09) at 8PM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 4th Sep) | 1.5ft (0.4m) 19s |
| Best Surf | 5AM (Sun 6th Sep) | 3.5ft (1.0m) 15s |
| Most Powerful | 5PM (Sun 6th Sep) | 5ft (1.5m) 14s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s chew the fat on what’s brewing at Nera Rivermouth for the next two weeks.
Right off the bat, I gotta be straight with you – this is a tough run. The forecast starts with a whole lot of nothing. We’ve got a stretch of days from Friday the 4th right through the weekend where the swell is either tiny, the wind is chopping it up, or both. The energy is weak, with readings of just 32 on Friday morning and not much better through Saturday. The swell is from the SSW, but it’s just not working with the wind. This is a sheltered spot, and it’s living up to that reputation in the worst way.
The first real glimmer of hope shows up on Sunday, September 6th. Sunday morning is looking like the standout of the whole outlook. The wind goes glassy – dead calm, just a slight air – and that’s a major positive. The swell is a clean 4ft from the SSW, with a period of 14 seconds. That’s a proper groundswell, and it’s bringing some moderate energy with a combined reading of 812. It’s not massive, but it’s the best we’ll see for a while. The water temperature is about average for this time of year, so no need for a wetsuit just yet. The river mouth setup could be fun with that long period, but remember, this spot is inconsistent and rarely breaks. When it does, it can be a bit of a treasure hunt, and crowds are possible. Sunday afternoon bumps up to 5ft, but the wind picks up to a cross-shore, making it marginal.
After that, the week goes quiet again. Monday through Thursday is a mix of onshore and cross-onshore winds, with poor surf conditions and low energy. The swell sticks around 2ft to 3ft, but it’s all chop and no shape. Not worth paddling out for.
Friday, September 11th afternoon brings a bit of a pulse. The swell jumps to 5ft from the SSW, and the period is a very long 23 seconds. The combined energy is a strong 2212, but the wind is a moderate cross-shore. The forecast is marginal. That long period will make the waves powerful, but at a beach-and-river setup, it might break too straight. It’s more of a kite surfer’s proposition than a clean paddle session.
Saturday, September 12th morning is a strange one. The swell hammers up to 12ft from the SSW, with a period of 18 seconds. The combined energy is a massive 7387. That’s expert territory only – far too big for beginners. The wind is cross-shore, making it a messy, heavy beast. This is not a day for a casual surf. The afternoon goes flat.
Then we hit a real dead zone. From Saturday afternoon of the 12th all the way through to the morning of Wednesday, September 16th, there’s basically no swell. The combined energy readings are zero for most of those days. The wind is cross-shore, and the water is flat.
The run finally gets a little interesting again on Friday, September 18th. The morning shows 3ft from the SSW, but the wind is offshore from the NE at 25 km/h. That’s clean. The afternoon is even better – 4ft from the SSW, with a period of 12 seconds, and a moderate offshore wind. The combined energy is 406 (moderate), and the forecast says “expect good surf conditions.” For a brief moment, it looks like a proper session. Saturday morning the 19th has a very long 22-second period, but the swell is only 1ft, so it’s a tease.
So, to wrap it up: the one true standout is Sunday morning, September 6th, with that glassy 4ft groundswell. If you can get out of bed early, that’s your moment. Friday the 18th afternoon is a promising second call, but it’s a long way off and the forecast might change. The rest of the window is a tough slog. Nera Rivermouth is a fickle break, and this forecast shows exactly why.
Rusty out.
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 18°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 22°C on Mon afternoon, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 12 | SSW 18 | SSW 11 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 12 | SSW 15 | SSW 14 | SSW 14 | SSW 12 | SSW 11 | SSW 11 | SSW 10 |
Wave Graph | |||||||||||||||||||
367 | 32 | 71 | 228 | 232 | 212 | 266 | 427 | 911 | 506 | 367 | 169 | 318 | 183 | 161 | 226 | 222 | 353 | 250 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | off | cross | cross | off | glassy | cross | cross-off | on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross | cross-off |
High Tide | 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 | 4:23PM1.20m | 3:39AM1.19m | 5:03PM1.25m | 4:34AM1.21m | ||||||
Low Tide | 5:14AM0.29m | 5:15PM0.69m | 6:27AM0.25m | 6:46PM0.71m | 7:37AM0.19m | 8:05PM0.68m | 8:38AM0.13m | 9:08PM0.63m | 9:31AM0.09m | 10:01PM0.56m | 10:18AM0.07m | 10:48PM0.48m | |||||||
— | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | — | 5:49 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — |
Temp °C | 21 | 22 | 23 | 21 | 22 | 22 | 20 | 22 | 22 | 20 | 21 | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 19 |
Feels °C | 20 | 20 | 20 | 19 | 21 | 19 | 18 | 22 | 20 | 20 | 20 | 21 | 19 | 22 | 20 | 21 | 19 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 11 | S 12 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 12 | SSW 15 | SSW 14 | SSW 14 | SSW 12 | SSW 11 | SSW 11 | SSW 10 |
367 | 198 | 103 | 228 | 232 | 212 | 266 | 427 | 911 | 506 | 367 | 169 | 318 | 183 | 161 | 226 | 222 | 353 | 250 | |
Swell 2 Height (m) Direction Period (s) | S 15 | S 12 | SSW 11 | S 12 | S 12 | — | SSE 5 | SSW 16 | — | SE 5 | SSW 19 | SSW 17 | SE 8 | ESE 8 | SE 8 | — | SW 15 | S 21 | SW 20 |
17 | 11 | 71 | 98 | 66 | — | 11 | 385 | — | 3 | 145 | 164 | 2 | 7 | 3 | — | 8 | 9 | 15 | |
Swell 3 Height (m) Direction Period (s) | E 9 | SSW 18 | SSW 18 | SSE 5 | E 9 | S 12 | S 11 | — | — | — | SE 8 | SE 7 | — | — | SW 8 | SW 7 | S 22 | S 21 | SW 14 |
2 | 32 | 66 | 11 | 2 | 3 | 10 | — | — | — | 2 | 2 | — | — | 2 | 2 | 9 | 9 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | SSE 5 | — | — | S 12 | — | — | — | — | — | — | SE 3 | — | — | SSW 3 | S 5 | — | E 8 |
— | — | 19 | — | — | 70 | — | — | — | — | — | — | 2 | — | — | 1 | 25 | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 37 | 38 | 1310 | 0 | 38 | 1409 | 0 | 0 | 1295 | 0 | 141 | 38 | 0 | 44 | 1361 | 38 | 1271 | 1271 | 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.










