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Tahunanui bar Surf Forecast
/ Nelson – Tasman Bay (18 surf breaks) /
Surf Forecasts:
Tahunanui bar surfForecast / Nelson – Tasman Bay / New Zealand
16 Day Weather and Surf, issued 5 am Saturday 18 Apr 2026 NZSTForecast update in hr min s Forecast update imminent
Tahunanui bar surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tahunanui bar sea temperature is
18.2° C
(Which is 2.6°C warmer than normal for this time of year)Best Forecast Surf Conditions for Tahunanui bar this week:
The surf forecast for Tahunanui bar over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Apr 18) at 6PM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 1.1m and 8s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tahunanui bar in the next 16 days are 1.6m 8s and forecast to arrive on Saturday (Apr 18) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Monday (Apr 20) at 3PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sat 18th Apr) | 5ft (1.6m) 8s |
| Best Surf | 6PM (Sat 18th Apr) | 5ft (1.6m) 8s |
| Most Powerful | 9PM (Sat 18th Apr) | 5ft (1.6m) 8s |
Table - best surf conditions forecast for Tahunanui bar over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 35mm), heaviest during Sat morning. Very mild (max 16°C on Mon afternoon, min 10°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Tue morning. Very mild (max 17°C on Wed morning, min 7°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
| 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) (?) | 7 | 7 | 9 | 9 | 8 | 8 | 8 | 13 | 7 | 7 | 7 | 6 | 7 | 8 | 8 | 7 | 13 | 16 | 14 | 14 | 18 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 255 | 183 | 185 | 152 | 171 | 60 | 20 | 17 | 4 | 8 | 15 | 21 | 17 | 10 | 5 | 1 | 3 | 5 | 4 | 4 | 6 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | glass | glass | cross- on | off | off | cross- off | cross- off | off | off | off | cross- off | off | off | off | cross- off | off | off | cross- off | off |
High Tide / height (m) | 10:06AM 4.32 | 10:42PM 4.37 | 10:49AM 4.32 | 11:22PM 4.38 | 11:33AM 4.21 | 12:04AM 4.26 | 12:22PM 4.01 | 12:49AM 4.04 | 1:14PM 3.75 | 1:41AM 3.76 | 2:16PM 3.47 | 2:45AM 3.49 | 3:30PM 3.28 | ||||||||
Low Tide / height (m) | 4:07PM 0.32 | 4:32AM 0.25 | 4:49PM 0.36 | 5:13AM 0.31 | 5:34PM 0.50 | 5:58AM 0.50 | 6:25PM 0.70 | 6:49AM 0.79 | 7:20PM 0.93 | 7:54AM 1.08 | 8:21PM 1.15 | 9:19AM 1.28 | 9:31PM 1.33 | ||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
| Sunrise | 7:00 | - | - | 7:01 | - | - | 7:01 | - | - | 7:03 | - | - | 7:03 | - | - | 7:05 | - | - | 7:05 | - | - |
| Sunset | - | 5:52 | - | - | 5:50 | - | - | 5:49 | - | - | 5:46 | - | - | 5:45 | - | - | 5:45 | - | - | 5:43 | - |
 |  |  |  |  |  |  |  |  | | |  |  |  | | | | | | | | |
Rain (mm) | 14 | 10 | - | 3 | 1 | - | - | 3 | 4 | 5 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 14 | 14 | 15 | 13 | 15 | 16 | 12 | 12 | 13 | 11 | 17 | 16 | 8 | 14 | 15 | 9 | 11 | 12 | 10 |
| Feels °C (?) | 13 | 15 | 14 | 13 | 13 | 12 | 10 | 11 | 11 | 10 | 11 | 8 | 13 | 12 | 4 | 11 | 12 | 6 | 9 | 10 | 7 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 16 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.
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