Surf Forecasts:
Whangaehu River Mouth surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 6AM (local time) - 6.5ft (2.0m), 9s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 12AM (local time) - 10ft (3.0m), 9s period, W swell with 1,486 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 6AM (local time) - 6.5ft (2.0m), 9s period with SSW swell.
Best Forecast Surf Conditions for Whangaehu River Mouth this week:
The surf forecast for Whangaehu River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 6AM. The primary swell is predicted to be 2.0m and 9s period with a secondary swell of 0.1m and 18s. Another secondary swell of 1.7m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Whangaehu River Mouth in the next 16 days are 3.0m 9s and forecast to arrive on Monday (Aug 24) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 19th Aug) | 6.5ft (2.0m) 9s |
| Best Surf | 6AM (Wed 19th Aug) | 6.5ft (2.0m) 9s |
| Most Powerful | 12AM (Mon 24th Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Whangaehu River Mouth over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 12°C on Thu morning, min 7°C on Tue night). Winds decreasing (fresh winds from the S on Tue afternoon, calm by Wed night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Sat night. Very mild (max 14°C on Sat afternoon, min 9°C on Fri night). Winds increasing (light winds from the NW on Fri morning, strong winds from the WNW by Sun afternoon). | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | SW 14 | SSW 6 | SSW 9 | SSW 10 | SSW 13 | SW 16 | SW 15 | SW 14 | SW 14 | W 5 | W 5 | W 6 | W 7 | W 6 | W 6 | WSW 9 | WSW 9 | W 9 | WSW 8 | WSW 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 31 | 121 | 1312 | 550 | 408 | 62 | 54 | 32 | 31 | 51 | 82 | 232 | 326 | 156 | 141 | 994 | 1062 | 1486 | 346 | 462 | 442 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:29PM2.16m | 1:45AM2.11m | 2:07PM2.00m | 2:25AM1.92m | 2:51PM1.84m | 3:12AM1.74m | 3:47PM1.69m | 4:20AM1.61m | 5:09PM1.61m | 5:54AM1.56m | 6:45PM1.64m | 7:23AM1.65m | 7:56PM1.78m | ||||||||
Low Tide | 7:22PM0.39m | 7:42AM0.44m | 7:58PM0.56m | 8:18AM0.62m | 8:41PM0.74m | 9:07AM0.79m | 9:47PM0.90m | 10:31AM0.93m | 11:46PM0.97m | 12:32PM0.92m | 1:23AM0.86m | 1:46PM0.78m | 2:19AM0.69m | ||||||||
 |  |  | | | | | |  | | | | | |  | |  | | |  | | |
 | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — |
 | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — |
mm | — | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | 8 | 2 | — | — | 1 | — | — |
Temp °C | 11 | 11 | 9 | 9 | 10 | 10 | 12 | 12 | 12 | 13 | 13 | 10 | 13 | 14 | 13 | 14 | 14 | 12 | 13 | 13 | 12 |
Feels °C | 5 | 5 | 0 | 6 | 6 | 8 | 9 | 10 | 9 | 9 | 8 | 6 | 7 | 8 | 7 | 7 | 6 | 5 | 8 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | W 8 | W 13 | SSW 10 | SSW 13 | SSW 14 | SSW 12 | WSW 5 | W 5 | W 5 | WSW 5 | WSW 6 | WSW 7 | SW 14 | SW 13 | WSW 16 | WSW 18 | WSW 9 | SW 16 | SW 15 | WSW 7 |
| kJ | 22 | 33 | 84 | 550 | 408 | 61 | 44 | 8 | 16 | 25 | 45 | 115 | 157 | 7 | 7 | 27 | 31 | 795 | 306 | 191 | 237 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | — | WSW 18 | WSW 10 | SSW 5 | SW 15 | SW 14 | SW 14 | SSW 14 | SSW 13 | SSW 12 | SW 14 | S 11 | S 11 | — | — | SW 18 | SSW 12 | SSW 14 | SW 15 |
| kJ | 31 | 29 | — | 30 | 37 | 8 | 54 | 32 | 31 | 40 | 34 | 14 | 8 | 2 | 2 | — | — | 80 | 26 | 19 | 176 |
Swell 3 Height (m) Direction Period (s) | SSW 9 | W 18 | — | W 13 | SW 16 | SW 16 | WSW 9 | SSW 11 | SSW 9 | WSW 13 | SW 16 | WSW 14 | S 11 | W 19 | SW 19 | — | — | — | — | — | S 15 |
| kJ | 8 | 6 | — | 82 | 41 | 62 | 15 | 25 | 17 | 17 | 39 | 20 | 9 | 7 | 15 | — | — | — | — | — | 4 |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 6 | SSW 9 | — | — | — | — | — | WNW 5 | W 5 | W 5 | W 6 | W 7 | W 6 | W 6 | WSW 9 | WSW 9 | W 9 | WSW 8 | WSW 8 | W 8 |
| kJ | 19 | 121 | 1312 | — | — | — | — | — | 22 | 51 | 82 | 232 | 326 | 156 | 141 | 994 | 1062 | 1486 | 346 | 462 | 442 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 118 | 140 | 141 | 0 | 134 | 40 | 15 | 34 | 15 | 15 | 128 | 34 | 34 | 163 | 163 | 163 | 166 | 138 | 138 | 136 | 34 |
Best forecast wave conditions in Wanganui and the Manawatu | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Whangaehu River Mouth Surf forecast
The above surf forecast table for Whangaehu River Mouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Whangaehu River Mouth can be found by selecting the local surf guide option on the grey menu. Our Whangaehu River Mouth 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 (Whangaehu River Mouth) 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 Whangaehu River Mouth 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 Wanganui and the Manawatu? If you are looking for accommodation near Whangaehu River Mouth, camping, hotels and holiday cottages in Wanganui and the Manawatu, consider staying in Wanganui which is 13 km (8 miles) away. Other places in and around Wanganui and the Manawatu where you can find information about places to rent, and car hire include Palmerston North which is 55 km (34 miles) away, Levin and Paraparaumu.
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