
Surf Forecasts:
Nera Rivermouth surf forecast from 13 Sep 2026:
- Best quality surf: Monday 14 Sep, 2AM (local time) - 8ft (2.4m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 11AM (local time) - 10ft (3.0m), 14s period, SSW swell with 2,990 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 2AM (local time) - 8ft (2.4m), 16s 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 (Sep 14) at 2AM. The primary swell is predicted to be 2.4m and 16s 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 3.0m 14s and forecast to arrive on Saturday (Sep 19) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 14s period and expected on Saturday (Sep 19) at 2PM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 14th Sep) | 8ft (2.4m) 16s |
| Best Surf | 2AM (Mon 14th Sep) | 8ft (2.4m) 16s |
| Most Powerful | 11AM (Sat 19th Sep) | 10ft (3.0m) 14s |
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 cards for Nera Rivermouth over the next couple of weeks.
Right off the bat, I gotta be honest with you – this isn't looking like a classic run. The first proper surf we see is a tiny window on Sunday morning the 13th of September. We've got a weak 2ft SSW groundswell with a very long 20-second period, but the cross-shore wind is gonna put a bit of chop on it. The water’s sitting at 73°, which is about average for this time of year. The combined wave energy is weak (407), so don't expect much push. This is an inconsistent river-mouth setup, and it's sheltered, so it takes a lot to get it going. That morning is really the only shot for a couple of days.
Then we go into a real flat spell. Monday the 14th has a bit of a pulse in the morning – 5ft SSW at 18 seconds, with moderate cross-shore wind. That energy jumps up (1588), but it's still marked as marginal with questionable tide. Tuesday and Wednesday are duds, with barely anything on the charts. The 16th and 17th are a complete write-off.
We get a bit of a pulse again on Friday the 18th of September, but it’s messy. The swell is building to 7ft SSW (12 seconds) in the morning, and 8ft in the afternoon, but the wind shifts to a fresh cross-onshore, making it lumpy and choppy. The energy is solid (1362 and 1638), but the quality just isn't there for a paddle session.
Saturday the 19th pushes even bigger, with a 10ft SSW swell (14 seconds) in the morning – that’s expert-only territory, and with cross-onshore winds, it’s gonna be a washing machine. The energy reading is huge (2990), but the conditions are poor. This setup looks far more interesting for the kite crew than us paddle surfers.
Things settle down by Sunday the 20th. The morning brings a cleaner 4ft SSW groundswell (17 seconds) with lighter cross-shore wind and a moderate energy reading of 1003. It’s another marginal call, but it’s your best shot at something rideable that weekend.
It stays up and down through the following week. Monday the 21st has a nice 6ft SSW swell (15 seconds) and decent cross-shore wind, with good energy (1404), but again, it’s flagged as marginal. Wednesday the 23rd afternoon is interesting – a 5ft SSW swell (12 seconds) with a crisp cross-offshore wind, giving us a clean look. The energy is decent (889), and that’s the standout window in this whole second week.
Then Thursday the 24th of September is the big one on paper. We’ve got a 7ft SSW groundswell with a very long 19-second period, and the energy is massive (3551). But it’s cross-onshore, and the period is so long it’ll be lining up funny for a beach/river break. It’s still a powerful, expert-only wave.
After that, it just fades out through the 25th to the 28th. The 26th and 27th are basically flat, with tiny leftover energy.
The bottom line: If you’re desperate, Sunday morning the 20th of September is the pick of the first week. For the second week, keep an eye on Wednesday afternoon the 23rd and Thursday morning the 24th, but they’re not guaranteed. It’s a patchy forecast with lots of waiting between sessions. Stay tuned, forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon morning, min 18°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Warm (max 22°C on Wed morning, min 18°C on Thu night). Winds increasing (light winds from the E on Wed morning, fresh winds from the SSW by Fri morning). | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 20 | SSE 6 | SSW 16 | SSW 18 | S 17 | SSW 16 | S 14 | SSW 14 | S 13 | S 12 | SSW 15 | S 12 | SW 13 | SSW 4 | SSW 6 | SW 12 | SSW 12 | SSW 11 | SSW 14 | SSW 15 | SSW 18 |
Wave Graph | |||||||||||||||||||||
407 | 74 | 2943 | 1588 | 0 | 0 | 0 | 527 | 0 | 0 | 21 | 0 | 7 | 11 | 98 | 1142 | 1510 | 1175 | 2990 | 199 | 260 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross-off | cross | cross | off | cross-on | cross | cross | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 7:21PM1.24m | 7:55AM1.11m | 7:53PM1.19m | 8:49AM1.05m | 8:27PM1.13m | 9:48AM0.99m | 9:04PM1.06m | 10:57AM0.95m | 9:48PM1.00m | 12:16PM0.93m | 10:46PM0.96m | 1:34PM0.94m | 11:55PM0.94m | ||||||||
Low Tide | 1:02PM0.32m | 1:39AM0.29m | 1:41PM0.43m | 2:22AM0.29m | 2:23PM0.54m | 3:09AM0.31m | 3:09PM0.63m | 4:02AM0.34m | 4:06PM0.70m | 5:04AM0.36m | 5:23PM0.74m | 6:13AM0.37m | 6:49PM0.75m | ||||||||
5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | |
— | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 22 | 21 | 20 | 22 | 22 | 20 | 22 | 22 | 21 | 22 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 20 |
Feels °C | 18 | 16 | 16 | 19 | 18 | 17 | 19 | 18 | 17 | 21 | 19 | 20 | 20 | 18 | 17 | 14 | 14 | 14 | 16 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 19 | SSW 16 | S 14 | S 17 | SSW 16 | S 14 | SSW 14 | S 13 | S 12 | S 12 | S 12 | S 10 | S 10 | SW 16 | SW 12 | SSW 12 | SSW 11 | SSW 14 | S 14 | S 13 |
1077 | 3167 | 2943 | 1195 | 2682 | 1664 | 951 | 527 | 581 | 295 | 278 | 178 | 68 | 50 | 65 | 1142 | 1510 | 1175 | 2990 | 2323 | 1316 | |
Swell 2 Height (m) Direction Period (s) | SSW 20 | — | — | SSW 18 | — | — | — | — | SE 7 | — | SSW 15 | S 11 | SW 13 | SW 17 | S 10 | SSW 14 | S 14 | S 15 | SE 12 | SSW 15 | SSW 18 |
407 | — | — | 1588 | — | — | — | — | 85 | — | 21 | 9 | 7 | 11 | 8 | 220 | 91 | 283 | 5 | 199 | 260 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 11 | SW 11 | S 13 | — | SE 13 | SSW 18 | SSW 16 | — | SSW 20 | SW 15 |
— | — | — | — | — | — | — | — | — | — | — | 2 | 5 | 3 | — | 7 | 128 | 302 | — | 37 | 54 | |
Wind waves Height (m) Direction Period (s) | — | SSE 6 | — | — | S 17 | — | — | SSE 7 | — | — | SE 4 | — | SE 6 | SSW 4 | SSW 6 | — | — | — | — | — | — |
— | 74 | — | — | 3347 | — | — | 163 | — | — | 20 | — | 10 | 10 | 98 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1361 | 1361 | 0 | 1297 | 1338 | 1 | 1295 | 1371 | 1 | 38 | 864 | 38 | 1292 | 543 | 543 | 1292 | 1292 | 1338 | 1291 | 1585 | 1271 |
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.










