Surf Forecasts:
Tahunanui Beach surf forecast from 20 Aug 2026:
- Best quality surf: Saturday 22 Aug, 9PM (local time) - 3.5ft (1.1m), 6s period, NNW swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 6AM (local time) - 6ft (1.9m), 8s period, NNW swell with 509 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 9PM (local time) - 3.5ft (1.1m), 6s period with NNW swell.
Best Forecast Surf Conditions for Tahunanui Beach this week:
The surf forecast for Tahunanui Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 9PM. The primary swell is predicted to be 1.1m and 6s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tahunanui Beach in the next 16 days are 1.9m 8s and forecast to arrive on Sunday (Aug 23) at 6AM. 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 9s period and expected on Sunday (Aug 23) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 22nd Aug) | 3.5ft (1.1m) 6s |
| Best Surf | 9PM (Sat 22nd Aug) | 3.5ft (1.1m) 6s |
| Most Powerful | 6AM (Sun 23rd Aug) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Tahunanui Beach over the next 16 days.
Short Range ForecastModerate rain (total 12mm), heaviest on Sat night. Very mild (max 13°C on Sat morning, min 6°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Tue afternoon, min 8°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | N 16 | N 16 | N 15 | NNW 4 | NNW 5 | NNW 7 | N 9 | N 9 | NNW 8 | NNW 15 | NNW 7 | NNW 15 | NNW 15 | NNW 5 | NW 5 | NNW 6 | NNW 6 | N 6 | N 5 | N 5 | NNW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 5 | 4 | 7 | 17 | 276 | 404 | 240 | 94 | 89 | 18 | 22 | 23 | 13 | 40 | 61 | 40 | 15 | 13 | 7 | 40 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross-off | cross-off | glassy | cross-on | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | on | cross-on | cross-on | cross-off | glassy |
High Tide | 3:23PM3.24m | 4:11AM3.03m | 4:34PM3.07m | 5:30AM2.94m | 6:21PM3.05m | 6:49AM3.02m | 7:41PM3.22m | 7:49AM3.20m | 8:29PM3.45m | 8:36AM3.41m | 9:06PM3.69m | 9:17AM3.61m | 9:39PM3.91m | ||||||||
Low Tide | 9:11AM1.50m | 9:52PM1.75m | 10:12AM1.67m | 11:30PM1.80m | 11:30AM1.74m | 00:46AM1.71m | 12:54PM1.66m | 1:42AM1.54m | 2:01PM1.43m | 2:26AM1.36m | 2:50PM1.15m | 3:02AM1.15m | 3:27PM0.88m | ||||||||
 | |  |  | |  |  | | | | |  | | | | | | |  | | | |
 | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — |
 | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — |
mm | — | — | — | — | — | 11 | 1 | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 1 |
Temp °C | 11 | 11 | 7 | 13 | 13 | 13 | 12 | 11 | 10 | 13 | 14 | 9 | 14 | 17 | 11 | 13 | 14 | 14 | 12 | 10 | 11 |
Feels °C | 9 | 8 | 4 | 10 | 12 | 10 | 7 | 6 | 3 | 8 | 9 | 5 | 9 | 12 | 6 | 11 | 12 | 13 | 9 | 8 | 10 |
Swell 1 Height (m) Direction Period (s) | — | N 16 | NNW 4 | NNW 4 | N 6 | — | N 9 | N 9 | NNW 8 | N 8 | NNW 7 | NNW 15 | NW 4 | NNW 5 | NNW 4 | NW 15 | NNW 6 | N 6 | N 5 | N 5 | — |
| kJ | — | 5 | 4 | 7 | 3 | — | 404 | 240 | 94 | 30 | 18 | 22 | 4 | 13 | 12 | 8 | 40 | 15 | 13 | 7 | — |
Swell 2 Height (m) Direction Period (s) | N 16 | — | N 15 | N 6 | — | — | N 17 | N 18 | NW 18 | NNW 15 | NW 15 | NNW 4 | NNW 6 | NW 15 | NW 14 | — | NW 15 | NW 14 | NW 17 | E 3 | — |
| kJ | 5 | — | 4 | 1 | — | — | 6 | 6 | 12 | 89 | 57 | 2 | 4 | 9 | 8 | — | 8 | 8 | 11 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | N 12 | — | — | NNW 7 | NNW 15 | — | — | — | — | N 18 | — | NW 16 | — |
| kJ | — | — | — | — | — | — | — | — | 3 | — | — | 4 | 23 | — | — | — | — | 6 | — | 10 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNW 5 | NNW 7 | NNW 9 | — | — | — | — | WSW 2 | — | — | NW 5 | NNW 6 | — | — | ESE 3 | — | NNW 5 |
| kJ | — | — | — | — | 17 | 276 | 1014 | — | — | — | — | 1 | — | — | 40 | 61 | — | — | 2 | — | 40 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 69 | 69 | 69 | 69 | 101 | 117 | 15 | 102 | 122 | 2 | 69 | 69 | 69 | 69 | 2 | 2 | 117 | 69 | 100 | 129 | 2 |
Best forecast wave conditions in Nelson - Tasman Bay | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Tahunanui Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Tahunanui Beach Surf forecast
The above surf forecast table for Tahunanui Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tahunanui Beach can be found by selecting the local surf guide option on the grey menu. Our Tahunanui Beach 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 (Tahunanui Beach) 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 Tahunanui Beach 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 Nelson - Tasman Bay? If you are looking for accommodation near Tahunanui, camping, hotels and holiday cottages in Nelson - Tasman Bay, consider staying in Nelson which is 3 km (2 miles) away. Alternatively, find information about places to stay and car hire in Blenheim which is 65 km (40 miles) away
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