Surf Forecasts:
Onemana surf forecast from 10 Aug 2026:
- Best quality surf: Monday 17 Aug, 12AM (local time) - 5.5ft (1.7m), 8s period, ESE swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 12AM (local time) - 5ft (1.5m), 10s period, ESE swell with 446 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 6AM (local time) - 3.5ft (1.0m), 8s period with N swell.
Best Forecast Surf Conditions for Onemana this week:
The surf forecast for Onemana over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 6AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Onemana in the next 16 days are 1.5m 10s and forecast to arrive on Tuesday (Aug 18) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Tuesday (Aug 11) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 11th Aug) | 3.5ft (1.0m) 8s |
| Best Surf | 12AM (Mon 17th Aug) | 5.5ft (1.7m) 8s |
| Most Powerful | 12AM (Tue 18th Aug) | 5ft (1.5m) 10s |
Table - best surf conditions forecast for Onemana over the next 16 days.
The Lowdown
G'day, Rusty here. Let’s have a look at what Onemana’s got cooking over the next couple of weeks.
Right off the bat, the good news is there’s some surf on offer, but the start of the period is pretty ordinary. We’ve got a gap of a few days before things start to show some promise. The first half of the week is dominated by onshore winds that are going to keep the waves messy, so you can basically write off Tuesday through Thursday for anything decent. The swell is there, but the quality is just not there.
Friday the 14th morning is the first little glimmer of hope. We’ve got a light cross-off breeze from the NNW and a 4 ft swell from the ENE. It’s not perfect, but it’s surfable. The combined swell energy is around 142, which is weak to moderate. The water temperature is about average for this time of year.
Now, the standout window looks like Monday the 17th and Tuesday the 18th. Monday morning is looking like the pick of the bunch. We’ve got a clear sky, a light offshore breeze from the SW, and a 3 ft swell from the east with a period of 11 seconds. That’s a long period, so expect some proper groundswell energy. The combined swell energy is 273, which is moderate. This will give you well-shaped, clean waves that are great for intermediate surfers. It might be a bit small for the groms, but it’s a solid call. The crowds are only sometimes an issue here, so you might have a few others out, but not too crowded.
Tuesday morning is another quality session. Similar setup, with a clearer sky and a 4 ft swell from the ESE, period of 10 seconds, and a light offshore. The combined energy is 328, still moderate but a bit more push. The wind is a little stronger but still offshore, so it should be a fun, clean session.
After that, things start to taper off. Wednesday the 19th has a small window of opportunity with a 3 ft swell and a light offshore in the morning, but it’s on the smaller side. From there, it’s a long run of tiny, weak, or onshore conditions right through to the end of the forecast. The second week is pretty bleak, with very little to get excited about. The only mention of a swell with any period is a 13-second groundswell on the 22nd and 23rd, but at only 0.3 ft, it’s basically a lake. So if you’re chasing waves, target the morning sessions on the 17th and 18th.
Rusty.
Short Range ForecastHeavy rain (total 29mm), heaviest during Thu afternoon. Very mild (max 14°C on Wed morning, min 9°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 46mm), heaviest during Sat afternoon. Very mild (max 16°C on Fri afternoon, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | N 8 | N 8 | NNE 8 | NNE 9 | NE 8 | NNE 8 | NE 8 | NE 7 | NE 7 | NE 6 | ENE 7 | ENE 6 | E 6 | ESE 7 | E 7 | E 8 | E 8 | E 9 | ESE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 157 | 118 | 144 | 217 | 291 | 149 | 204 | 341 | 255 | 226 | 134 | 130 | 105 | 186 | 272 | 113 | 90 | 154 | 400 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | on | cross-on | on | on | cross-on | on | on | cross-on | cross-off | on | on | cross-on | cross | cross | cross-off | cross-off | cross-off |
High Tide | 4:31AM1.72m | 5:13PM1.84m | 5:33AM1.76m | 6:11PM1.90m | 6:31AM1.80m | 7:05PM1.96m | 7:27AM1.83m | 7:56PM1.98m | 8:19AM1.85m | 8:45PM1.97m | 9:10AM1.84m | 9:32PM1.93m | |||||||
Low Tide | 10:25PM0.32m | 10:51AM0.15m | 11:29PM0.26m | 11:51AM0.10m | 00:29AM0.19m | 12:48PM0.06m | 1:25AM0.12m | 1:41PM0.04m | 2:17AM0.08m | 2:32PM0.05m | 3:06AM0.06m | 3:21PM0.09m | |||||||
 |  |  |  | | |  |  |  |  | | |  |  | | | | | | |
 | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — |
 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — |
mm | — | — | — | — | — | — | 4 | 10 | 15 | 7 | 9 | — | 2 | 4 | 22 | 2 | — | — | — |
Temp °C | 10 | 13 | 13 | 13 | 14 | 14 | 13 | 14 | 14 | 15 | 14 | 16 | 15 | 13 | 13 | 13 | 14 | 15 | 11 |
Feels °C | 8 | 12 | 11 | 10 | 10 | 10 | 10 | 11 | 11 | 12 | 13 | 13 | 12 | 10 | 9 | 11 | 10 | 11 | 7 |
Swell 1 Height (m) Direction Period (s) | N 8 | N 8 | NNE 8 | NNE 9 | NNE 8 | NNE 8 | NE 8 | E 10 | NE 7 | NE 6 | ENE 7 | NE 8 | NE 8 | ESE 7 | E 7 | E 8 | E 8 | E 9 | E 8 |
| kJ | 157 | 118 | 144 | 217 | 216 | 149 | 204 | 2 | 255 | 116 | 134 | 16 | 21 | 186 | 272 | 113 | 90 | 154 | 171 |
Swell 2 Height (m) Direction Period (s) | E 12 | ENE 12 | E 11 | — | N 12 | N 12 | E 14 | E 13 | E 13 | ESE 5 | E 15 | NE 10 | NE 10 | NE 8 | E 13 | NE 8 | NE 7 | NE 7 | — |
| kJ | 11 | 13 | 2 | — | 3 | 3 | 4 | 3 | 3 | 5 | 4 | 25 | 25 | 55 | 3 | 82 | 65 | 32 | — |
Swell 3 Height (m) Direction Period (s) | — | E 12 | E 13 | N 13 | — | — | E 14 | N 11 | E 9 | NE 10 | E 15 | E 14 | E 14 | E 13 | E 13 | E 13 | SE 5 | — | — |
| kJ | — | 3 | 3 | 3 | — | — | 4 | 3 | 2 | 16 | 4 | 4 | 4 | 3 | 13 | 3 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | SW 3 | SSW 3 | — | NE 4 | NE 8 | E 5 | ESE 5 | NE 7 | — | NE 6 | — | ENE 6 | E 6 | — | ESE 7 | S 4 | S 5 | SSE 5 | ESE 8 |
| kJ | 3 | 1 | — | 26 | 291 | 33 | 9 | 341 | — | 226 | — | 130 | 105 | — | 160 | 10 | 15 | 12 | 400 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 50 | 107 | 84 | 107 | 107 | 110 | 110 | 107 | 0 | 107 | 107 | 27 | 50 | 5 | 0 | 50 | 0 |
Best forecast wave conditions in The Coromandel | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
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Information about the Onemana Surf forecast
The above surf forecast table for Onemana provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Onemana can be found by selecting the local surf guide option on the grey menu. Our Onemana 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 (Onemana) 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 Onemana 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.
Onemana is 64 km (40 miles) from Tauranga. If you plan a holiday in The Coromandel, look for hotels and other accommodation in Tauranga. Tauranga has rooms for a wide range of budgets as well as car hire and transport links.
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