Surf Forecasts:
Nera Rivermouth surf forecast from 16 Aug 2026:
- Most powerful swell: Monday 17 Aug, 8AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 946 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 1.3m 17s and forecast to arrive on Monday (Aug 17) 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 2.5m 9s period and expected on Tuesday (Aug 18) at 11AM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Mon 17th Aug) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's in store for the Nera Rivermouth area over the next couple of weeks.
To be straight with you, the immediate outlook is pretty grim. We're looking at a long stretch of poor conditions with no real surf to speak of for the first week and a half. From Sunday the 16th right through to the end of Thursday the 21st, it's a write-off. The swell is small and choppy, and a fresh cross-shore wind is just ruining any chance of a clean wave. The water temperature is sitting at 73°, which is about 0.9° above average for this time of year, so nothing unusual there.
Things start to look a little more promising on Tuesday the 25th. We've got a nice SSW groundswell coming in, with a very long period of 20 seconds. The swell height will be around 3 ft building to 5 ft in the afternoon, and the wind will be light and offshore from the north, cleaning things up nicely. The combined wave energy will be moderate at first (1001) and then strong in the afternoon (1345), so there'll be some real push behind it. This is shaping up to be a proper session, even if the break is usually inconsistent, so keep an eye on it.
Wednesday the 26th morning is also worth a mention. The swell drops a bit to 5 ft, still from the SSW, but the wind goes glassy – dead calm from the northwest. That's a rare treat. The energy is still moderate (909). It'll be clean as a whistle, but be aware that long-period groundswell like this (15 seconds) can sometimes race through at a beach break, so it might be a bit more makeable than it looks.
After that, things get messy again. The wind swings onshore through the rest of the week and the swell becomes inconsistent or non-existent. There's a small window of clean conditions on the 24th, but with barely any swell, it's not worth suiting up for.
So, the standout here is Tuesday the 25th and the morning of Wednesday the 26th. That's your best bet for the whole 16-day run. The Nera Rivermouth is a sheltered river and beach setup, so it's generally better for beginners, but with a 5 ft swell and that long period, it'll be more of a challenge. Expert-level conditions for sure.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sun afternoon, min 18°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Fri afternoon, min 18°C on Wed night). Winds decreasing (fresh winds from the SE on Wed afternoon, light winds from the ENE by Thu night). | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 15 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSE 9 | SW 15 | SSW 14 | SSE 8 | SE 7 | SW 14 | SSE 10 | SSE 6 | SSE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 344 | 0 | 870 | 705 | 803 | 505 | 428 | 293 | 207 | 135 | 85 | 0 | 57 | 39 | 0 | 0 | 8 | 0 | 31 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-off | cross-off | cross | off | cross-off | cross-off | cross-off | cross-off | cross | off |
High Tide | 8:49PM1.23m | 9:06AM1.04m | 9:26PM1.18m | 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 | |||||||
Low Tide | 3:04AM0.39m | 2:57PM0.41m | 3:56AM0.38m | 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 | ||||||||
 |  | | | | |  | |  | |  | | | | | | | | | | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — |
 | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 20 | 19 | 20 | 20 | 19 | 20 | 20 | 19 | 21 | 22 | 20 | 22 | 23 | 21 | 22 | 23 | 21 |
Feels °C | 15 | 15 | 14 | 14 | 13 | 14 | 14 | 13 | 14 | 14 | 14 | 19 | 20 | 18 | 20 | 20 | 20 | 21 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 18 | SSW 16 | SSW 16 | S 9 | S 10 | SSW 15 | S 10 | SSW 11 | S 10 | SSE 8 | SSE 9 | S 9 | S 10 | SSE 8 | SSE 8 | SE 10 | SSE 10 | SE 10 | SSE 7 |
| kJ | 344 | 2089 | 870 | 705 | 505 | 605 | 428 | 562 | 156 | 80 | 105 | 110 | 142 | 221 | 90 | 80 | 106 | 85 | 48 | 42 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SE 13 | SW 9 | S 16 | SSW 16 | SSW 15 | — | SSW 14 | SSW 14 | SSW 13 | SSW 12 | S 9 | SE 9 | SSW 14 | S 10 | S 10 | S 10 | SSW 9 | SSW 9 | S 9 |
| kJ | 214 | 7 | 40 | 5 | 803 | 505 | — | 293 | 207 | 135 | 85 | 60 | 40 | 39 | 73 | 48 | 46 | 29 | 28 | 14 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | — | — | — | — | S 13 | — | SSE 12 | S 22 | SW 20 | SE 10 | SSW 12 | SW 15 | SE 16 | SE 13 | SE 12 | SW 14 | S 13 | S 12 | SE 10 |
| kJ | 214 | — | — | — | — | 272 | — | 111 | 9 | 16 | 50 | 47 | 57 | 10 | 25 | 47 | 8 | 13 | 11 | 24 |
Wind waves Height (m) Direction Period (s) | S 9 | SSE 6 | S 8 | S 8 | SSE 9 | SSE 9 | S 12 | SSE 8 | SSE 10 | SSE 8 | SSE 10 | — | SE 9 | — | — | SE 7 | — | — | SSE 6 | — |
| kJ | 327 | 131 | 253 | 359 | 809 | 1083 | 1249 | 525 | 325 | 298 | 511 | — | 220 | — | — | 237 | — | — | 31 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1297 | 1304 | 1403 | 1361 | 1361 | 1403 | 1361 | 1361 | 1361 | 1338 | 1 | 1 | 1370 | 1 | 1 | 1295 | 1 | 1 | 1 | 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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