Surf Forecasts:
Nera Rivermouth surf forecast from 20 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 8AM (local time) - 3ft (0.9m), 16s period, SSW swell with offshore winds.
- Most powerful swell: Tuesday 25 Aug, 5PM (local time) - 4.5ft (1.4m), 15s period, SSW swell with 833 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 5PM (local time) - 4ft (1.2m), 6s period with SE 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 5PM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.3m and 20s. 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 1.4m 15s and forecast to arrive on Tuesday (Aug 25) at 5PM. 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 8s period and expected on Friday (Aug 21) at 11AM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Mon 24th Aug) | 4ft (1.2m) 6s |
| Best Surf | 8AM (Tue 25th Aug) | 3ft (0.9m) 16s |
| Most Powerful | 5PM (Tue 25th Aug) | 4.5ft (1.4m) 15s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Alright, let’s get into it for the Nera Rivermouth. Gonna be a lean run, no two ways about it.
This spot is a sheltered, inconsistent river and beach break, and for the first few days, it’s dead flat. From Thursday the 20th through to Monday morning the 24th, there’s nothing but clean, glassy water. The water temp is running about 73°, which is normal for this time of year, so no drama there.
The first little pulse shows up on Monday afternoon, the 24th. A tiny, short-period SE swell rolls in at about 4 ft, but with a period of just 6 seconds, it’s gonna be a bit of a mess. The combined swell energy is moderate (161), and the wind is a gentle cross-off, so conditions are ordinary. Not worth a paddle.
The one real highlight comes on Tuesday the 25th. A solid SSW groundswell builds to 4 ft in the morning and 5 ft in the afternoon, with a very long period of 15–16 seconds. That’s proper energy, with readings of 783 and 833—strong stuff. The offshore wind is NE in the morning, which will clean it up nicely, and cross-off later. Groundswell like this favours the river mouth, so expect lined-up waves with long lulls. This is the best of the whole forecast.
Wednesday the 26th keeps the theme going, with similar SSW swell around 4–4 ft, periods of 14–15 seconds, and moderate-to-strong energy (459–615). Winds stay cross-off, so it’s still rideable, but the quality eases off a bit.
From Thursday the 27th, the swell drops below 3 ft, the energy fades, and by Friday the 28th, the wind turns onshore and then cross-on, killing the surf. After that, it’s a long stretch of tiny, weak windswell and choppy cross-shore winds right through the first week of September. The last few days show 0.7 ft waves with messy periods—nothing to get out of bed for.
So, if you’re keen, lock in Tuesday the 25th and maybe Wednesday the 26th. The rest is a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 18°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Mon morning, min 19°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | SSE 10 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SW 14 | SE 10 | SE 8 | SSE 10 | SSE 9 | SE 7 | SE 7 | SE 9 | SE 6 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 88 | 38 | 16 | 18 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 86 | 180 | 783 | 833 | 678 | 580 | 459 | 351 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off | off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 12:47PM0.90m | 11:37PM1.02m | 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 | |||||||
Low Tide | 5:47PM0.71m | 7:01AM0.36m | 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 | ||||||||
 | |  | | | |  | | | | |  | | | | | | | | | | |
 | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 20 | 21 | 20 | 22 | 22 | 21 | 23 | 23 | 22 | 24 | 24 | 22 | 24 | 24 | 21 | 23 | 23 | 21 |
Feels °C | 18 | 17 | 19 | 18 | 17 | 19 | 21 | 19 | 20 | 23 | 22 | 22 | 25 | 23 | 21 | 24 | 23 | 20 | 23 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | S 8 | S 10 | SSE 8 | S 10 | SSE 12 | SE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SE 7 | SE 6 | SSE 5 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 15 | SSW 14 | SSW 14 |
| kJ | 117 | 147 | 262 | 126 | 73 | 171 | 94 | 117 | 83 | 54 | 54 | 23 | 10 | 19 | 180 | 783 | 833 | 678 | 580 | 459 | 351 |
Swell 2 Height (m) Direction Period (s) | S 9 | SSW 15 | SSW 14 | S 10 | SE 13 | S 10 | S 10 | SSW 9 | S 9 | S 11 | S 10 | S 10 | SE 9 | SSW 20 | SSE 6 | SE 8 | SSE 8 | SSE 6 | SE 6 | SSE 6 | SSE 6 |
| kJ | 79 | 88 | 38 | 98 | 44 | 68 | 48 | 28 | 14 | 36 | 18 | 17 | 13 | 75 | 12 | 18 | 25 | 15 | 9 | 21 | 12 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 11 | S 18 | SSW 13 | SSW 13 | SW 14 | S 13 | S 12 | S 12 | S 16 | S 16 | SE 9 | S 9 | SE 10 | SSW 14 | — | — | SE 13 | SE 13 | — | S 14 |
| kJ | 47 | 25 | 6 | 16 | 18 | 8 | 13 | 3 | 11 | 5 | 5 | 14 | 6 | 15 | 36 | — | — | 7 | 7 | — | 4 |
Wind waves Height (m) Direction Period (s) | — | SE 9 | — | SE 8 | SSE 8 | — | — | SE 8 | — | — | SE 7 | — | — | SE 6 | — | — | SE 8 | — | SE 6 | SE 6 | — |
| kJ | — | 235 | — | 338 | 117 | — | — | 244 | — | — | 75 | — | — | 86 | — | — | 61 | — | 35 | 72 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 1 | 1271 | 1 | 1 | 858 | 1 | 1 | 1 | 1 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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.
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