Surf Forecasts:
Nera Rivermouth surf forecast from 7 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 5AM (local time) - 5.5ft (1.7m), 12s period, SSW swell with 723 kJ wave energy.
Best Forecast Surf Conditions for Nera Rivermouth this week:
The most powerful waves expected at Nera Rivermouth in the next 16 days are 1.7m 12s and forecast to arrive on Saturday (Aug 15) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 9s period and expected on Saturday (Aug 08) at 5AM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Sat 15th Aug) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Alright, let’s talk about Nera Rivermouth in the old measurements. It’s a sheltered river-and-beach set-up, and the honest truth is, this 16-day forecast is a tough one to write. The swell is tiny for most of it, and the break is inconsistent – it needs a proper push to get going. The good news is that there’s a little window towards the end that’s worth watching.
For the first week and a half, it’s flat or nearly flat. We’re looking at swell heights between 0.3 ft and 1 ft, with the combined wave energy barely ticking over – just single and low double-digit numbers for most of that time. That’s weak, barely a ripple. Winds are mostly cross or cross-onshore, nothing to get excited about. The water temp is about average for this time of year. It’s a long wait.
Now, things get interesting from Monday 17 August. On Monday morning, the swell finally kicks up to 4 ft from the SSW, with a 15-second period. That’s a nice, long-period groundswell. The wind is offshore from the ESE at 12 mph, and the wave comment says “clean”. The combined energy hits 832 – that’s moderate to strong energy, a real step up. This is the standout. Because the swell is over 5 ft? No, it’s 4 ft, so it’s fine for most. And the period is over 15 seconds, which suits a river mouth set-up like this perfectly – the waves will have shape. It’s an inconsistent spot that rarely gets proper juice, so when it does, you need to be on it. Expect some crowds, though – it says “sometimes” busy, and this kind of pulse will pull people out.
Tuesday 18 August morning is a backup option, with the same 4 ft, SSW swell and a 15-second period, ESE offshore wind again at 12 mph. It’s clean, but the wave comment calls it “marginal”, so it’s not quite the same magic.
After that, it fades quickly. The rest of the week drops back to small, weak surf with cross-shore winds and chop. The long-range stuff after that is just tiny again, 0.3 ft and 0.7 ft, no energy to speak of. A real tease, but that Monday morning is the one.
Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Sat afternoon, min 18°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Tue morning, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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 18 | SSW 15 | SSW 14 | SSW 13 | SSW 10 | SSW 9 | SSW 16 | SSW 9 | SSW 18 | SSW 16 | SSW 8 | SSW 15 | SSW 7 | SSW 19 | SSW 19 | SSW 18 | SSW 16 | SW 11 | SW 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 30 | 22 | 20 | 18 | 9 | 7 | 25 | 16 | 30 | 26 | 6 | 21 | 5 | 37 | 36 | 30 | 25 | 29 | 47 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | glassy | cross-on | cross-on | cross-off | cross | cross | off | on | cross-on | cross-off | glassy | cross | glassy | on | cross-on | cross-on |
High Tide | 00:36AM1.14m | 2:48PM1.01m | 1:40AM1.16m | 3:51PM1.09m | 2:43AM1.19m | 4:44PM1.16m | 3:42AM1.23m | 5:31PM1.22m | 4:37AM1.25m | 6:15PM1.27m | 5:31AM1.26m | 6:56PM1.29m | |||||||
Low Tide | 7:53AM0.21m | 7:56PM0.69m | 8:52AM0.12m | 9:06PM0.66m | 9:47AM0.04m | 10:05PM0.62m | 10:37AM-0.01m | 10:58PM0.57m | 11:24AM-0.03m | 11:48PM0.52m | 12:08PM-0.01m | 00:37AM0.48m | |||||||
 |  | | |  | |  | | | | | | | | | | | |  | |
 | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | — | — | 5:40 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:42 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 21 | 23 | 24 | 21 | 22 | 22 | 20 | 21 | 22 | 20 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 20 |
Feels °C | 20 | 22 | 24 | 22 | 22 | 20 | 19 | 20 | 20 | 19 | 21 | 20 | 21 | 22 | 20 | 20 | 21 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 11 | SE 12 | SSE 4 | SSW 8 | SE 5 | SSW 8 | SSE 6 | SSW 7 | SSW 19 | SSW 19 | SSE 4 | SSW 12 | SW 11 | SW 10 |
| kJ | 64 | 41 | 28 | 20 | 12 | 19 | 39 | 3 | 7 | 6 | 6 | 3 | 5 | 37 | 36 | 1 | 13 | 29 | 47 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | SSW 14 | SSW 13 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SE 11 | SSW 8 | SSE 6 | SSW 8 | S 5 | S 5 | SE 10 | SSW 18 | SSW 16 | SSW 16 | SSW 14 |
| kJ | 21 | 9 | 20 | 18 | 9 | 7 | 8 | 16 | 19 | 7 | 4 | 6 | 2 | 2 | 4 | 30 | 25 | 25 | 39 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 15 | S 11 | S 10 | SSE 14 | SE 14 | SSW 16 | SE 12 | SSW 18 | SSW 16 | S 5 | SSW 15 | SE 6 | SE 11 | S 5 | S 13 | SE 13 | SW 20 | SSW 19 |
| kJ | 30 | 22 | 9 | 2 | 19 | 7 | 25 | 23 | 30 | 26 | 2 | 21 | 1 | 4 | 1 | 3 | 7 | 15 | 34 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | S 3 | — | SE 4 | SSE 4 | — | — | — | — | — | — | — | S 5 | SSW 2 | — |
| kJ | — | — | — | — | — | 1 | — | 8 | 7 | — | — | — | — | — | — | — | 2 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 4 | 38 | 1292 | 1 | 1292 | 1338 | 65 | 115 | 115 | 115 | 117 | 1291 | 4 | 1291 | 1297 | 1 |
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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