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Onekaka surfForecast / Nelson – Tasman Bay / New Zealand
12 Day Weather and Surf, issued 11 am Sunday 27 Apr 2025 NZST
Best Forecast Surf Conditions for Onekaka this week:
The most powerful waves expected at Onekaka in the next 12 days are 1.1m 6s and forecast to arrive on Wednesday (Apr 30) at 3PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 6s period and expected on Sunday (Apr 27) at 6PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3PM (Wed 30th Apr) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Onekaka over the next 12 days.
Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | 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) (?) | 6 | 6 | 6 | 6 | 2 | 6 | 4 | 5 | 4 | 3 | 6 | 5 | 4 | 4 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 1 | 4 | 5 | 4 | 4 | 4 | 13 | 12 | 15 | 18 | 16 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 0 | 32 | 0 | 0 | 0 | 0 | 13 | 10 | 3 | 2 | 69 | 4 | 0 | 1 | 5 | 8 | 8 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 11 | 7 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- on | off | glass | cross- on | cross | cross- on | glass | cross- off | glass | glass | cross | cross- off | cross- off | cross | cross- on | cross- on | cross- off | glass | glass | cross- off | glass | glass | cross- off | glass | glass | off | glass | glass | glass | glass | on | cross- off | glass | cross- on | cross- off |
High Tide / height (m) | 9:16PM 4.75 | 9:22AM 4.81 | 10:01PM 4.90 | 10:08AM 4.79 | 10:44PM 4.89 | 10:55AM 4.63 | 11:28PM 4.72 | 11:43AM 4.35 | 12:12AM 4.43 | 12:34PM 4.01 | 1:00AM 4.08 | 1:32PM 3.66 | 1:54AM 3.74 | 2:39PM 3.41 | 3:04AM 3.47 | 3:51PM 3.31 | 4:29AM 3.39 | 4:57PM 3.34 | 5:43AM 3.49 | 5:54PM 3.45 | 6:38AM 3.67 | 6:45PM 3.60 | ||||||||||||||
Low Tide / height (m) | 2:44PM -0.15 | 3:11AM -0.25 | 3:27PM -0.21 | 3:53AM -0.29 | 4:12PM -0.12 | 4:36AM -0.16 | 5:00PM 0.09 | 5:22AM 0.11 | 5:50PM 0.36 | 6:12AM 0.48 | 6:42PM 0.67 | 7:11AM 0.83 | 7:36PM 0.97 | 8:25AM 1.09 | 8:36PM 1.21 | 9:46AM 1.20 | 9:48PM 1.35 | 10:59AM 1.17 | 11:10PM 1.30 | 11:58AM 1.07 | 12:16AM 1.12 | 12:46PM 0.95 | 1:04AM 0.91 | |||||||||||||
Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | |||||||||||||||||||||||||
| Sunrise | 7:09 | - | - | 7:11 | - | - | 7:11 | - | - | 7:13 | - | - | 7:13 | - | - | 7:15 | - | - | 7:16 | - | - | 7:16 | - | - | 7:18 | - | - | 7:18 | - | - | 7:20 | - | - | 7:20 | - | - |
| Sunset | - | 5:42 | - | - | 5:40 | - | - | 5:38 | - | - | 5:37 | - | - | 5:37 | - | - | 5:36 | - | - | 5:34 | - | - | 5:32 | - | - | 5:31 | - | - | 5:30 | - | - | 5:30 | - | - | 5:28 | - |
 | |  | | |  |  | |  |  |  |  | | | | | | | | | | | | | | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | 1 | - | - | - | - | 1 | 12 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 4 |
| Temp. °C | 18 | 19 | 15 | 19 | 18 | 16 | 17 | 17 | 15 | 17 | 16 | 14 | 12 | 12 | 11 | 12 | 12 | 10 | 13 | 13 | 11 | 14 | 14 | 11 | 15 | 16 | 12 | 15 | 15 | 12 | 14 | 14 | 12 | 15 | 15 | 14 |
| Feels °C (?) | 18 | 19 | 15 | 19 | 18 | 17 | 16 | 16 | 14 | 17 | 16 | 13 | 11 | 10 | 9 | 9 | 9 | 8 | 11 | 11 | 9 | 12 | 13 | 10 | 14 | 15 | 10 | 14 | 14 | 11 | 14 | 14 | 10 | 13 | 13 | 13 |
Short Range Forecast: Some drizzle, heaviest during Mon night. Very mild (max 19°C on Sun afternoon, min 14°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Wed night. Very mild (max 17°C on Wed morning, min 8°C on Fri night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Very mild (max 16°C on Mon afternoon, min 9°C on Sat night). Wind will be generally light. | Long Range Forecast: Moderate rain (total 14mm), heaviest on Fri morning. Very mild (max 15°C on Tue morning, min 10°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 Onekaka 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 Onekaka Surf forecast
The above surf forecast table for Onekaka provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Onekaka can be found by selecting the local surf guide option on the grey menu. Our Onekaka 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 (Onekaka) 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 Onekaka 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 Onekaka, camping, hotels and holiday cottages in Nelson - Tasman Bay, consider staying in Nelson which is 76 km (47 miles) away.
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