Surf Forecasts:
Nera Rivermouth surf forecast from 20 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 5AM (local time) - 2.5ft (0.8m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 11AM (local time) - 4.5ft (1.3m), 16s period, SSW swell with 838 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 11PM (local time) - 1.5ft (0.4m), 15s 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 Monday (Aug 24) at 11PM. The primary swell is predicted to be 0.4m and 15s period. 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 1.3m 16s and forecast to arrive on Tuesday (Aug 25) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 9s period and expected on Friday (Aug 21) at 8AM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 24th Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 5AM (Tue 25th Aug) | 2.5ft (0.8m) 17s |
| Most Powerful | 11AM (Tue 25th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Righto, let’s take a look at what’s on offer at Nera Rivermouth.
To be blunt, it’s gonna be a quiet stretch at Nera Rivermouth. The next week and a half is mostly flat or just tiny, with the first real chance of a wave showing up on Tuesday the 25th. Before that, you’ve got a run of days – from Friday the 21st right through Monday the 24th – where the swell is barely a ripple, with combined energy readings down at 16 (weak) or flat zero. Not worth paddling out.
Things get interesting on Tuesday the 25th morning. A SSW swell pushes in at 4ft, period 16 seconds – that’s a proper long-period groundswell. Combined energy jumps up to 844 (moderate) and with light ESE winds, it’ll be clean. That’s your standout window. Tuesday afternoon keeps that 4ft size, wind stays gentle, but the period drops a touch to 14 seconds. Still solid. This is the best on offer. Wednesday the 26th follows up with 4ft SSW swell, 15-second period, and morning gets cross-off light breeze. Wednesday afternoon turns offshore from the NE at 12 mph – that’ll be glassy and lined up. Crowds are *sometimes* an issue here, so you might have a few others in the water. This is a river-mouth setup, so that long-period groundswell should wrap in nicely.
From Thursday the 27th onward, the swell backs off – 3ft down to 2ft by Friday the 28th – and conditions get more ordinary. A few glassy mornings on Saturday the 29th and Sunday the 30th with 3ft to 3ft SSW swell, but the periods drop under 12 seconds, and the afternoon winds go cross or cross-on. Surfable but nothing special.
After Sunday the 30th, it fades right out again. Monday the 31st has a weird little 3ft SE windswell with a 6-second period, but that’s junk. The rest of the first week of September? Flat or near flat, with combined energy under 100. Not a looker.
So, if you want a wave, aim for Tuesday the 25th through Wednesday the 26th. That’s your window. Keep it on the incoming tide and you’ll find some clean, long-period runners.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sun afternoon, min 18°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Mon afternoon, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 13 | SSE 7 | SW 14 | SSE 10 | SE 7 | SSE 7 | SSE 9 | SE 8 | SSE 7 | SE 9 | SE 6 | SSW 18 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 42 | 182 | 838 | 833 | 716 | 573 | 478 | 392 | 387 | 318 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | off | off | cross-off | cross | off |
High Tide | 2:09PM0.92m | 00:36AM1.00m | 3:13PM0.95m | 1:37AM1.01m | 3:59PM0.99m | 2:31AM1.03m | 4:35PM1.03m | 3:18AM1.07m | 5:07PM1.08m | 4:01AM1.10m | 5:36PM1.12m | 4:41AM1.13m | 6:04PM1.16m | ||||||||
Low Tide | 7:06PM0.73m | 8:01AM0.33m | 8:15PM0.73m | 8:52AM0.28m | 9:09PM0.70m | 9:36AM0.24m | 9:52PM0.67m | 10:14AM0.20m | 10:31PM0.63m | 10:49AM0.17m | 11:08PM0.59m | 11:23AM0.16m | 11:44PM0.54m | ||||||||
 | |  | | | |  | | | | | | | | | | |  | | | | |
 | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 21 | 23 | 21 | 23 | 24 | 22 | 23 | 24 | 21 | 23 | 24 | 21 | 23 | 24 | 22 | 24 | 24 | 22 |
Feels °C | 18 | 17 | 19 | 19 | 21 | 21 | 22 | 24 | 22 | 22 | 23 | 20 | 23 | 23 | 20 | 22 | 23 | 23 | 25 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 10 | SSE 12 | SSE 10 | SSE 10 | SSE 7 | SSE 9 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSW 18 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 135 | 69 | 171 | 92 | 117 | 42 | 52 | 37 | 30 | 15 | 14 | 182 | 838 | 833 | 716 | 573 | 478 | 392 | 387 | 318 | 280 |
Swell 2 Height (m) Direction Period (s) | S 10 | SE 13 | S 10 | S 10 | SSW 9 | S 9 | S 11 | SE 9 | S 10 | SE 9 | SE 10 | SSW 14 | SE 7 | SE 6 | SSE 6 | SE 6 | SE 6 | SSE 6 | SE 6 | SE 6 | SE 12 |
| kJ | 96 | 45 | 70 | 48 | 28 | 23 | 21 | 23 | 17 | 13 | 15 | 105 | 23 | 30 | 13 | 9 | 19 | 15 | 6 | 8 | 6 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSE 11 | SW 14 | S 13 | S 12 | S 12 | S 16 | S 10 | SSE 9 | S 9 | SSW 17 | SSE 6 | SSW 12 | — | SE 13 | SE 13 | — | S 14 | SE 13 | SE 13 | — |
| kJ | 16 | 12 | 8 | 13 | 12 | 11 | 5 | 17 | 8 | 6 | 27 | 15 | 91 | — | 7 | 7 | — | 4 | 7 | 6 | — |
Wind waves Height (m) Direction Period (s) | SE 8 | SSE 7 | — | — | SE 7 | — | — | SE 8 | — | — | SE 6 | — | — | SE 6 | — | — | SE 6 | — | — | SE 7 | — |
| kJ | 358 | 111 | — | — | 198 | — | — | 128 | — | — | 42 | — | — | 102 | — | — | 56 | — | — | 41 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 858 | 1297 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 38 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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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