Surf Forecasts:
Nera Rivermouth surf forecast from 20 Jul 2026:
- Best quality surf: Sunday 26 Jul, 8PM (local time) - 8ft (2.4m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 5PM (local time) - 8ft (2.5m), 15s period, SSW swell with 2,976 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 11PM (local time) - 2.5ft (0.7m), 13s 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 (Jul 21) at 11PM. The primary swell is predicted to be 0.7m and 13s 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 2.5m 15s and forecast to arrive on Sunday (Jul 26) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 9s period and expected on Wednesday (Jul 22) at 5AM.
| Wave Type | Time (+11) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 21st Jul) | 2.5ft (0.7m) 13s |
| Best Surf | 8PM (Sun 26th Jul) | 8ft (2.4m) 15s |
| Most Powerful | 5PM (Sun 26th Jul) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Nera Rivermouth over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’ve got a look at the Nera Rivermouth stretch for you. There’s a bit of a quiet start, but the second half of the window has some real promise.
Right now, the first decent surf is on Monday afternoon, July 20th. We’re looking at a small 3ft swell from the SSW with a long 17-second period, giving it some nice energy (528). The water is sitting at 74°, which is about average for this time of year. The problem is a light cross-onshore breeze, so it’s a bit crinkly. It’s marginal, but it’s the first sign of life.
The next few days are a flat spell with no real recommendations. We’ve got a dry run from Tuesday, July 21st through to Saturday, July 26th in the morning, where the surf is just too small or the wind is messy. That’s a solid five-day gap.
The action picks up on Sunday, July 26th afternoon. The swell jumps to 8ft from the SSW, with a 15-second period. That’s a lot of juice (2976). But the wind is a moderate cross-shore, so it’s going to be a bumpy, challenging beast. This is expert territory only – too big for beginners.
The standout window is from Monday, July 28th morning through Thursday, July 31st. The swell drops to a more manageable 4-5ft, still from the SSW, with a solid 11-18 second period. The real magic is on Tuesday, July 28th afternoon – glassy conditions with a 4ft SSW swell. That’s about as clean as it gets for a river mouth. The water is still warm, and the crowds are sometimes an issue, but with clean glass, it’s worth the gamble.
Looking further ahead, Saturday morning, August 1st is a long-range standout. The swell is a punchy 6ft from the SSW, with a 14-second period (1380), and it’s glassy. That’s a very good forecast, but it’s a week and a half out, so keep your fingers crossed. The period is long, so at a river mouth, it might draw up a bit straight, but with glassy wind, it’s a solid bet.
After that, it fades quickly. The last week of the forecast is mostly flat or blown out, with no real recommendations.
So, the best calls are Tuesday, July 28th afternoon for clean glassy waves, and Saturday, August 1st morning for a promising but less certain bigger swell.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 23°C on Tue afternoon, min 19°C on Wed night). Winds increasing (light winds from the S on Mon night, fresh winds from the SE by Tue night). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sat night. Warm (max 22°C on Fri afternoon, min 18°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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 17 | SSW 16 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | S 16 | S 16 | SSE 8 | SSW 15 | SE 10 | SSW 13 | SSE 4 | SSE 4 | SSW 19 | SW 18 | SSW 20 | SSW 17 | SSW 15 | SSW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 522 | 424 | 361 | 187 | 133 | 113 | 0 | 0 | 0 | 42 | 0 | 92 | 7 | 8 | 36 | 79 | 160 | 2250 | 2976 | 1775 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | off | off | cross | off | cross-on | cross | cross-off | cross | cross | cross | cross | cross | cross-off |
High Tide | 11:05PM1.18m | 11:48AM0.92m | 11:47PM1.14m | 1:11PM0.90m | 00:32AM1.10m | 2:30PM0.92m | 1:19AM1.07m | 3:35PM0.95m | 2:07AM1.06m | 4:25PM0.99m | 2:54AM1.07m | 5:05PM1.02m | 3:39AM1.09m | |||||||
Low Tide | 5:46AM0.43m | 5:18PM0.54m | 6:47AM0.39m | 6:20PM0.64m | 7:43AM0.34m | 7:27PM0.69m | 8:35AM0.30m | 8:31PM0.71m | 9:21AM0.26m | 9:25PM0.70m | 10:03AM0.21m | 10:11PM0.68m | ||||||||
 |  |  |  |  | | | | | | | | | | | | | | | | |
 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — |
 | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — |
mm | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — |
Temp °C | 22 | 21 | 22 | 23 | 21 | 21 | 22 | 21 | 21 | 21 | 20 | 21 | 22 | 20 | 21 | 21 | 20 | 20 | 20 | 19 |
Feels °C | 23 | 23 | 22 | 23 | 19 | 17 | 18 | 18 | 20 | 19 | 19 | 20 | 20 | 18 | 18 | 18 | 18 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 14 | SSW 13 | S 9 | SSE 8 | S 16 | SSE 8 | SSE 8 | SSE 9 | SE 10 | SSW 13 | S 12 | SSW 11 | SSW 12 | SW 18 | SSW 15 | SSW 17 | SSW 15 | SSW 14 |
| kJ | 522 | 424 | 361 | 187 | 288 | 262 | 257 | 119 | 73 | 103 | 92 | 92 | 76 | 40 | 28 | 79 | 126 | 2250 | 2976 | 1775 |
Swell 2 Height (m) Direction Period (s) | SSE 14 | SW 8 | SSW 4 | SSW 17 | SSW 13 | S 17 | S 12 | S 16 | S 12 | S 12 | SSW 13 | SSE 10 | SE 9 | SE 9 | SE 10 | SSW 12 | SSW 20 | SE 9 | SE 8 | SE 10 |
| kJ | 138 | 20 | 8 | 101 | 133 | 297 | 73 | 127 | 70 | 67 | 57 | 60 | 30 | 21 | 15 | 14 | 160 | 28 | 11 | 24 |
Swell 3 Height (m) Direction Period (s) | WSW 8 | SE 14 | SE 13 | SE 13 | SSW 16 | SSW 12 | SE 12 | S 12 | SSW 15 | SSW 15 | SSW 11 | — | — | — | SSW 19 | SE 10 | SE 10 | SE 11 | — | SE 12 |
| kJ | 6 | 67 | 62 | 44 | 86 | 113 | 23 | 73 | 71 | 42 | 38 | — | — | — | 36 | 14 | 14 | 5 | — | 6 |
Wind waves Height (m) Direction Period (s) | — | — | SSW 4 | S 10 | SSE 9 | SE 8 | SSE 8 | — | — | — | — | — | SSE 4 | SSE 4 | SSE 5 | SSE 5 | SSE 4 | — | — | — |
| kJ | — | — | 6 | 320 | 415 | 428 | 206 | — | — | — | — | — | 7 | 8 | 18 | 19 | 6 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 149 | 115 | 38 | 1295 | 1318 | 1318 | 1271 | 1 | 1 | 858 | 1 | 1 | 38 | 1 | 1295 | 1357 | 1291 | 1291 | 1358 | 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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