
Surf Forecasts:
Nera Rivermouth surf forecast from 11 Aug 2026:
- Best quality surf: Monday 17 Aug, 5AM (local time) - 4.5ft (1.3m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 2PM (local time) - 5ft (1.6m), 16s period, SSW swell with 1,195 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 2AM (local time) - 3ft (0.9m), 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 Sunday (Aug 16) at 2AM. The primary swell is predicted to be 0.9m and 19s period with a secondary swell of 1.1m and 6s. 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 1.6m 16s and forecast to arrive on Sunday (Aug 16) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Monday (Aug 17) at 8PM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 16th Aug) | 3ft (0.9m) 19s |
| Best Surf | 5AM (Mon 17th Aug) | 4.5ft (1.3m) 18s |
| Most Powerful | 2PM (Sun 16th Aug) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Alright, I’m gonna level with you. The next couple weeks at Nera Rivermouth are looking pretty bleak. This is a sheltered, inconsistent spot that’s picky about swell direction and it just doesn’t have much to work with. We’ve got a solid 16-day window here, but honestly, there’s a big gap right from the start. The first few days have tiny swell and messy wind, nothing worth paddling out for. The real blank stretch runs from Wednesday 12th all the way through to Sunday 16th – that’s almost a full week of flat-to-poor conditions. The combined swell energy is weak, barely hitting 39 (early Wednesday) and then struggling to get past 100 for most of that time. The water temperature sits at 73°F, which is about normal for this time of year, so no surprises there.
Now, the one bright spot that shows up is Monday 17th August. The morning sees a bump in combined swell energy to 751 (that’s moderate energy) with a 4ft, 16-second groundswell from the SSW. The wind is cross-shore from the SE at 9 mph, so it’s a bit lumpy but rideable. The period is long, which means it’ll be powerful and better shaped for Nera’s river mouth setup, but it’s also gonna be a bit inconsistent. Still, this is the only time in the whole outlook where the waves have any real push. The best part of the day is the morning, but the afternoon gets wrecked by a fresh 19 mph cross-shore, turning it lumpy and messy. After Monday, the energy drops back into the weak range and the wind stays all over the place, with more cross and cross-onshore junk. The rest of the week and into the second week is a write-off – tiny waves, poor conditions, and lots of days with flat spells.
For the whole period, the only time I’d even suggest checking it is Monday morning 17th August. The swell is 4ft from the SSW, it’s a long-period groundswell, and the wind is manageable. But don’t expect anything special – this is a beginner spot that’s inconsistent, and the setups are dominated by cross-shore winds. If you’re a kite surfer, the stronger wind days in the second week might be more interesting than paddling in this slop.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Warm (max 23°C on Wed afternoon, min 19°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 18°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 19 | SSW 19 | SSW 18 | SW 10 | SW 13 | SW 12 | SSW 11 | SSW 10 | SSW 8 | SSW 8 | SSW 16 | SSW 19 | SSW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
37 | 36 | 30 | 82 | 290 | 314 | 204 | 250 | 270 | 221 | 98 | 554 | 590 | 445 | 373 | 751 | 568 | 505 | 305 | 239 | 147 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | off | on | on | on | cross-on | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross-off | glassy |
High Tide | 6:15PM1.27m | 5:31AM1.26m | 6:56PM1.29m | 6:23AM1.23m | 7:35PM1.29m | 7:15AM1.18m | 8:12PM1.27m | 8:09AM1.12m | 8:49PM1.23m | 9:06AM1.04m | 9:26PM1.18m | 10:10AM0.97m | 10:04PM1.12m | ||||||||
Low Tide | 11:24AM-0.03m | 11:48PM0.52m | 12:08PM-0.01m | 00:37AM0.48m | 12:51PM0.06m | 1:25AM0.44m | 1:33PM0.16m | 2:14AM0.41m | 2:15PM0.28m | 3:04AM0.39m | 2:57PM0.41m | 3:56AM0.38m | 3:43PM0.54m | 4:54AM0.38m | |||||||
6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | |
mm | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 22 | 23 | 21 | 23 | 23 | 21 | 21 | 21 | 20 | 21 | 21 | 19 | 21 | 22 | 20 | 21 | 22 | 20 | 21 | 21 | 20 |
Feels °C | 22 | 23 | 22 | 24 | 22 | 22 | 19 | 18 | 16 | 16 | 16 | 14 | 18 | 17 | 16 | 18 | 17 | 17 | 19 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | S 6 | SSW 18 | SW 10 | SW 13 | SW 12 | SSW 11 | SSW 10 | SSW 8 | SSW 8 | SSW 16 | S 8 | S 9 | SSW 15 | S 8 | SSW 16 | SSW 16 | SSW 15 | S 9 | S 9 | S 9 |
3 | 3 | 30 | 82 | 290 | 314 | 204 | 250 | 270 | 221 | 98 | 213 | 190 | 445 | 160 | 751 | 568 | 505 | 269 | 263 | 240 | |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SSW 19 | SSW 12 | SSW 16 | SW 20 | SSW 18 | SW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 20 | SSW 19 | SSW 16 | SSW 20 | SSW 15 | SSE 8 | SSW 10 | SSE 7 | SSW 15 | SSW 14 | SSW 14 |
37 | 36 | 15 | 48 | 15 | 32 | 79 | 109 | 102 | 103 | 82 | 554 | 590 | 78 | 353 | 123 | 38 | 96 | 305 | 239 | 147 | |
Swell 3 Height (m) Direction Period (s) | SW 7 | SE 10 | SW 9 | SE 13 | SE 13 | SE 12 | SE 12 | SE 11 | SE 13 | SW 22 | SE 11 | SW 11 | SE 9 | SSW 20 | SSW 18 | — | SE 12 | S 8 | S 13 | S 12 | SE 13 |
2 | 4 | 3 | 7 | 7 | 6 | 5 | 5 | 7 | 19 | 5 | 31 | 3 | 127 | 373 | — | 5 | 61 | 29 | 44 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 6 | — | — | SSW 6 | SE 5 | S 8 | S 8 | SE 6 | SE 5 | S 8 | SSE 7 | SE 7 | SSE 8 | SE 8 | — | SSE 8 | SE 7 |
— | — | — | — | 3 | — | — | 67 | 51 | 263 | 205 | 79 | 49 | 245 | 224 | 268 | 264 | 305 | — | 444 | 209 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 65 | 115 | 4 | 38 | 1292 | 550 | 1295 | 1292 | 1292 | 1292 | 1292 | 0 | 1295 | 1292 | 0 | 1295 | 1297 | 0 | 38 | 516 | 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.











