- Forecast
- Maps
- Live
- Weather State
- Spot Information
Tahunanui bar Surf Forecast
/ Nelson – Tasman Bay (18 surf breaks) /
Surf Forecasts:
Tahunanui bar surfForecast / Nelson – Tasman Bay / New Zealand
12 Day Weather and Surf, issued 11 am Tuesday 26 Aug 2025 NZST
Best Forecast Surf Conditions for Tahunanui bar this week:
The surf forecast for Tahunanui bar over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 28) at 9PM. The primary swell is predicted to be 1.3m and 7s period with a secondary swell of 0.1m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tahunanui bar in the next 12 days are 1.6m 14s and forecast to arrive on Sunday (Aug 31) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Saturday (Aug 30) at 12PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 28th Aug) | 4.5ft (1.3m) 7s |
| Best Surf | 6AM (Sun 31st Aug) | 6ft (1.9m) 10s |
| Most Powerful | 12PM (Sun 31st Aug) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Tahunanui bar over the next 12 days.
Short Range Forecast Light rain (total 3mm), mostly falling on Thu night. Very mild (max 13°C on Thu afternoon, min 6°C on Tue night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 23mm), heaviest during Sat night. Very mild (max 14°C on Fri morning, min 6°C on Sun night). Winds increasing (calm on Sat morning, near gales from the N by Sat night). | ||||||||||||||||||||
Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 01 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 5 | 14 | 6 | 12 | 13 | 11 | 10 | 5 | 7 | 8 | 9 | 10 | 12 | 7 | 9 | 12 | 15 | 15 | 14 | 14 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 2 | 0 | 5 | 28 | 13 | 3 | 3 | 44 | 106 | 119 | 140 | 141 | 132 | 155 | 627 | 853 | 994 | 693 | 394 | 325 | 176 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | on | off | cross- off | on | cross- off | glass | on | cross- off | cross- off | cross | cross- off | glass | on | on | cross- off | cross- off | cross- off | cross- off | cross- off | cross |
High Tide / height (m) | 11:35AM 4.05 | 11:48PM 4.13 | 12:08PM 3.99 | 12:20AM 4.00 | 12:40PM 3.88 | 12:54AM 3.82 | 1:13PM 3.74 | 1:28AM 3.60 | 1:47PM 3.57 | 2:08AM 3.36 | 2:24PM 3.38 | 2:58AM 3.13 | 3:10PM 3.16 | ||||||||
Low Tide / height (m) | 5:32PM 0.61 | 5:49AM 0.64 | 5:59PM 0.71 | 6:21AM 0.77 | 6:27PM 0.88 | 6:54AM 0.93 | 6:57PM 1.09 | 7:29AM 1.12 | 7:33PM 1.34 | 8:10AM 1.32 | 8:22PM 1.58 | 9:00AM 1.53 | 9:39PM 1.75 | ||||||||
Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 01 | |||||||||||||||
| Sunrise | 7:01 | - | - | 7:00 | - | - | 6:58 | - | - | 6:56 | - | - | 6:54 | - | - | 6:54 | - | - | 6:52 | - | - |
| Sunset | - | 5:55 | - | - | 5:57 | - | - | 5:58 | - | - | 5:59 | - | - | 6:00 | - | - | 6:00 | - | - | 6:01 | - |
 | |  | |  |  | | |  | | | | |  |  |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 3 | - | - | - | - | 1 | 18 | 3 | 1 | - | - | - | - |
| Temp. °C | 11 | 12 | 8 | 12 | 12 | 8 | 11 | 13 | 12 | 14 | 13 | 11 | 11 | 12 | 12 | 8 | 8 | 8 | 9 | 11 | 8 |
| Feels °C (?) | 9 | 10 | 6 | 9 | 9 | 5 | 8 | 10 | 10 | 9 | 8 | 7 | 9 | 8 | 5 | 4 | -1 | 1 | 5 | 6 | 5 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Nelson - Tasman Bay
Actual: 39 min ago
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 bar 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 bar Surf forecast
The above surf forecast table for Tahunanui bar provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Tahunanui bar can be found by selecting the local surf guide option on the grey menu. Our Tahunanui bar 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 bar) 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 bar 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.
Nearest