Surf Forecasts:
Nera Rivermouth surf forecast from 6 Aug 2026:
- Best quality surf: Thursday 13 Aug, 8AM (local time) - 1.5ft (0.4m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 5PM (local time) - 3ft (0.9m), 12s period, SW swell with 216 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 8AM (local time) - 1.5ft (0.4m), 15s period with SW 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 Thursday (Aug 13) at 8AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 15s. 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 0.9m 12s and forecast to arrive on Thursday (Aug 13) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 9s period and expected on Friday (Aug 07) at 8AM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 13th Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 8AM (Thu 13th Aug) | 1.5ft (0.4m) 15s |
| Most Powerful | 5PM (Thu 13th Aug) | 3ft (0.9m) 12s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Here’s the outlook for Nera-Rivermouth (river and beach) over the next 16 days.
Right now, the surf is flat with tiny 0.7ft–1ft SSW swells and weak energy (14–59). Winds are mostly cross-off or glassy on Thursday morning, keeping things clean, but there’s really nothing to ride. This quiet stretch lasts through Friday, August 7th and into the weekend. Saturday and Sunday, August 8th–9th, stay small at 0.7ft with periods around 10–14 seconds and a mix of cross-off and cross-on breezes; combine that with poor conditions and scores of 0, and you’re better off staying home.
The first real pulse arrives on Thursday, August 13th, when the swell bumps to 2ft–3ft (141–218 energy) from the SW with a 9–12 second period. But it’s cross-on all day and choppy, so even with slightly more size, the surf remains poor. By Friday, August 14th, morning sees 5ft swell at 11 seconds (518 energy) but still cross-on and choppy, scoring a 0. The afternoon gets to 5ft with a longer 14-second period (1016 energy) – that’s moderate wave energy, and the rating lifts to a marginal 1. Still, it’s far from ideal.
The standout window arrives on Saturday, August 15th. Morning shows 8ft swell from the SSW with a 15-second period (2792 energy – strong wave energy) – a very long-period groundswell. That’s expert territory at 8ft, and given the river-mouth setup, those long-period waves might wall up and break a bit straight, but the energy is real. Winds are light cross-on from the south, so expect rippled but rideable conditions. The rating hits a 3, the best in the forecast. The afternoon holds similar size at 8ft and 14 seconds (2540 energy), but the breeze picks up to gentle cross-on, dropping the score to 1.
Sunday, August 16th, fades quickly to 4ft (SE swell, 6 seconds – short period junk) with rain and moderate cross-on winds. From Monday, August 17th onward, it’s back to 1.5ft–2.5ft SSW swell with periods mostly 13–17 seconds but weak energy under 300, and persistent cross-on or cross winds. The end of the window on August 21st–22nd sees near-flat conditions again with 0.3ft–0.7ft and glassy to clean winds, but nothing surfable. Overall, Saturday the 15th is your best bet – get on it early for the biggest, most powerful waves of the outlook.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 24°C on Sat afternoon, min 19°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 13 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 14 | SSW 13 | SSW 10 | SSW 9 | SSW 16 | SW 9 | SSW 15 | SSW 16 | SSW 8 | SSW 8 | SSW 7 | SSW 19 | SSW 19 | SW 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 32 | 14 | 14 | 25 | 12 | 20 | 18 | 9 | 7 | 25 | 31 | 21 | 25 | 6 | 8 | 5 | 37 | 36 | 50 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | cross-off | cross | cross-on | cross | cross-off | cross | cross | cross-off | cross-on | cross | cross-off | cross | cross | cross-off |
High Tide | 11:37PM1.14m | 1:31PM0.95m | 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 | |||||||
Low Tide | 6:48AM0.30m | 6:35PM0.67m | 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 | |||||||
 |  | | |  | |  | | | | | | | | | | | | | |
 | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 23 | 20 | 23 | 24 | 21 | 22 | 21 | 20 | 21 | 22 | 20 | 21 | 21 | 20 | 21 | 22 | 20 |
Feels °C | 20 | 20 | 19 | 19 | 23 | 24 | 21 | 22 | 19 | 20 | 20 | 20 | 19 | 21 | 20 | 20 | 22 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 12 | SW 9 | SSW 8 | SSE 5 | SSW 8 | SSW 8 | SSW 7 | SSW 19 | SW 9 | SW 10 |
| kJ | 22 | 64 | 64 | 64 | 41 | 29 | 20 | 20 | 13 | 39 | 21 | 7 | 5 | 6 | 6 | 5 | 37 | 12 | 50 |
Swell 2 Height (m) Direction Period (s) | S 14 | S 12 | S 12 | SSW 11 | S 11 | S 11 | SSW 13 | SSW 10 | SSW 9 | SSW 9 | SE 12 | SSE 11 | SSW 8 | SE 9 | SE 8 | — | SW 10 | SSW 19 | SW 7 |
| kJ | 63 | 47 | 44 | 25 | 9 | 9 | 18 | 9 | 7 | 8 | 23 | 12 | 7 | 3 | 3 | — | 4 | 36 | 8 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 12 | SW 18 | SSW 11 | SSW 14 | S 10 | SSE 14 | SE 14 | SSW 16 | SSW 18 | SSW 15 | SSW 16 | SE 5 | SW 15 | SE 11 | SE 11 | SW 13 | SSW 18 |
| kJ | 32 | 14 | 14 | 12 | 12 | 20 | 8 | 19 | 7 | 25 | 31 | 21 | 25 | 1 | 8 | 5 | 4 | 7 | 30 |
Wind waves Height (m) Direction Period (s) | — | — | ENE 3 | — | — | — | — | — | S 3 | — | — | SSE 5 | — | — | S 3 | SE 3 | — | — | — |
| kJ | — | — | 1 | — | — | — | — | — | 2 | — | — | 7 | — | — | 1 | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 1 | 1 | 1 | 38 | 38 | 1292 | 1 | 38 | 1291 | 65 | 141 | 1271 | 141 | 858 | 858 | 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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