Surf Forecasts:
Nera Rivermouth surf forecast from 31 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 5AM (local time) - 6ft (1.9m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 6ft (1.9m), 15s period, SSW swell with 1,519 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 2AM (local time) - 3ft (0.9m), 14s 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 Tuesday (Sep 01) at 2AM. The primary swell is predicted to be 0.9m and 14s period. 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 1.9m 15s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 16s period and expected on Tuesday (Sep 01) at 5PM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 1st Sep) | 3ft (0.9m) 14s |
| Best Surf | 5AM (Wed 2nd Sep) | 6ft (1.9m) 15s |
| Most Powerful | 5AM (Wed 2nd Sep) | 6ft (1.9m) 15s |
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 on the table for the Nera Rivermouth stretch. It’s a sheltered river-and-beach spot, mainly a beginner-friendly zone, but it’s inconsistent and can get a bit of a crowd sometimes. The water temp is sitting at 73°F right now, which is about average for this time of year, so no surprises there.
Right off the bat, the first few days are a real struggle. Monday the 31st through to Tuesday the 1st of September serve up poor surf conditions with cross-shore winds and barely any energy to speak of. The swell is tiny or non-existent. You’d be better off checking the wind forecast for something else.
Then, on Wednesday morning the 2nd of September, we get a little spike of hope. The swell builds to 6ft from the SSW with a 15 second period – that’s proper groundswell. The combined energy jumps to 1459 (strong wave energy), and the wind is light and cross-offshore, making it clean. That’s a standout window for this spot. The break is a rivermouth, so that long-period groundswell can really wrap in and offer some nice shaped waves. The sets will be a bit spaced, but the paddling will be easier. Just keep in mind, 6ft is getting a bit much for true beginners, but for the rest of you, it’s the best on offer by a long shot.
After that, it’s a mixed bag. Thursday the 3rd drops to a more average 5ft with cross-onshore wind, and the mornings are the only time to even bother. The energy drops to 703 (moderate). The rest of that week and into the next is a whole lot of nothing – small swells, cross-shore winds, and poor surf quality. There are a few mornings like Monday the 7th and Tuesday the 8th that have clean conditions with light cross-offshore winds, but the swell is only 3ft to 3ft, so it’s small and weak. The 8th stands out as a decent morning and afternoon for a longboard or a funboard, with combined energy around 764 (moderate) and a clean surface.
The second week is a real snooze-fest. From the 9th of September onwards, the swell is mostly under 3ft, the winds are messy, and the energy is low. The only notable thing is the 11th of September when the swell bumps up to 5ft from the SW, but the wind is howling at 16 mph and cross or cross-onshore, so it’s choppy and not worth the paddle. The 13th of September has a long period 20 second swell, but it’s only 2ft and the wind is cross, so it’s not going to deliver.
Overall, the standout is that Wednesday morning on the 2nd of September. If you can get out there, it’s your best shot. The rest of the window is pretty ordinary, with a few small, clean windows for the lighter gear. The setup is more interesting for a kite than a paddle on most days, honestly. The Nera Rivermouth is a fickle spot, and this forecast shows it.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu morning, min 18°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu afternoon, min 18°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 14 | SSW 18 | SE 6 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 18 | SSW 19 | SSW 18 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SSW 12 |
Wave Graph | ||||||||||||||||||||
123 | 265 | 0 | 122 | 0 | 1459 | 0 | 0 | 703 | 0 | 367 | 31 | 73 | 128 | 149 | 130 | 439 | 724 | 551 | 269 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | off | cross-off | cross | cross-off | cross-on | cross | glassy | cross | cross | off | cross | cross | off | cross | cross | off |
High Tide | 8:01PM1.21m | 8:29AM1.04m | 8:36PM1.19m | 9:31AM1.00m | 9:18PM1.15m | 10:44AM0.97m | 10:08PM1.12m | 12:09PM0.97m | 11:11PM1.09m | 1:33PM1.01m | 00:23AM1.09m | 2:42PM1.07m | 1:35AM1.11m | |||||||
Low Tide | 2:21AM0.36m | 2:15PM0.44m | 3:10AM0.33m | 3:01PM0.54m | 4:07AM0.31m | 3:58PM0.63m | 5:14AM0.29m | 5:15PM0.69m | 6:27AM0.25m | 6:46PM0.71m | 7:37AM0.19m | 8:05PM0.68m | ||||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | |
5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:49 | — | — | 5:49 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 19 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 20 | 22 | 22 | 21 |
Feels °C | 16 | 15 | 18 | 16 | 17 | 19 | 19 | 21 | 20 | 19 | 19 | 21 | 19 | 20 | 21 | 18 | 18 | 20 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | S 10 | SSW 18 | S 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | S 12 | S 12 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SSW 12 |
123 | 214 | 1831 | 2105 | 1540 | 1459 | 1189 | 1122 | 703 | 545 | 367 | 198 | 103 | 132 | 149 | 130 | 439 | 724 | 551 | 269 | |
Swell 2 Height (m) Direction Period (s) | SE 13 | SSW 14 | SE 12 | — | — | — | S 17 | — | — | — | S 15 | SSW 18 | SSW 11 | SSW 18 | S 12 | S 12 | SSE 5 | — | SW 19 | SSW 18 |
7 | 265 | 6 | — | — | — | 220 | — | — | — | 17 | 31 | 73 | 128 | 72 | 24 | 11 | — | 96 | 176 | |
Swell 3 Height (m) Direction Period (s) | — | SSW 20 | — | — | — | — | — | — | — | — | E 9 | S 12 | SSW 19 | SW 16 | SSW 11 | SSW 11 | S 11 | — | — | SSE 5 |
— | 131 | — | — | — | — | — | — | — | — | 2 | 11 | 72 | 61 | 25 | 12 | 10 | — | — | 11 | |
Wind waves Height (m) Direction Period (s) | S 9 | SSE 9 | — | SE 6 | — | — | — | — | — | — | — | — | SSE 4 | SE 5 | SE 5 | SSE 5 | — | SE 5 | SE 5 | SE 5 |
280 | 259 | — | 122 | — | — | — | — | — | — | — | — | 17 | 25 | 11 | 21 | — | 8 | 24 | 21 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1361 | 0 | 1271 | 1271 | 1 | 0 | 1564 | 1 | 1295 | 864 | 0 | 38 | 1297 | 0 | 1310 | 864 | 0 | 38 | 1403 | 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.











