- Forecast
- Maps
- Live
- Weather State
- Spot Information
Onekaka surfForecast / Nelson – Tasman Bay / New Zealand
48hr Weather and Surf, issued 11 am Saturday 17 May 2025 NZST
How big are the waves at Onekaka today?
The current surf forecast for Onekaka at 6PM is: 0.7m 4s primary swell from a North-northwest direction (forecast issued at 11:00am May 17). An open ocean swell of 0.2m 5s is not directed at the surf break, a second open ocean swell of 0.1m 21s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 2ft (0.6m) | 4s |
| Afternoon (17 May) | 2.5ft (0.7m) | 4s |
| Evening (17 May) | 3.5ft (1.0m) | 5s |
Table - waves today at Onekaka. (Swell directed towards the surf break)
Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |    |    |    |    |    |    |    |    | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 4 | 4 | 4 | 4 | 5 | 6 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 16 | 8 | 8 | 8 | 8 | 1 | 4 | 16 | 4 | 4 | 3 | 3 | 15 | 2 | 4 | 5 | 5 | 4 | 4 | 4 | 4 | 2 | 3 | 3 | 13 | 13 | 13 | 13 | 13 | 4 | 2 | 3 | 3 | 15 | 14 | 14 | 14 | 5 | 13 | 24 | 24 | 22 | 22 | 15 | 20 | 20 | 19 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 13 | 14 | 15 | 16 | 45 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 1 | 1 | 0 | 0 | 1 | 6 | 40 | 25 | 10 | 5 | 3 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | off | off | off | off | off | off | glass | on | glass | glass | off | off | off | glass | glass | cross- on | cross- on | cross- on | glass | glass | off | glass | glass | glass | glass | off | cross- off | off | off | off | glass | on | glass | off | off | off | off | off | glass | glass | off | off | off | off | off | cross- off | glass | glass | glass |
High Tide / height (m) | 12:05PM 3.78 | 12:19AM 3.92 | 12:52PM 3.63 | 1:04AM 3.72 | 1:46PM 3.48 | 2:00AM 3.58 | 2:50PM 3.38 | 3:08AM 3.55 | 3:58PM 3.40 | 4:20AM 3.66 | 5:04PM 3.55 | 5:26AM 3.86 | 6:08PM 3.80 | 6:24AM 4.11 | ||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 6:13PM 0.81 | 6:13AM 0.88 | 6:59PM 0.91 | 7:06AM 1.05 | 7:49PM 1.00 | 8:12AM 1.17 | 8:46PM 1.07 | 9:28AM 1.15 | 9:56PM 1.08 | 10:42AM 0.98 | 11:12PM 0.95 | 11:46AM 0.72 | 12:17AM 0.69 | 12:39PM 0.47 | ||||||||||||||||||||||||||||||||||||||||||||||
Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | 7:30 | - | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:33 | - | - | - | - | - | - | - | 7:33 | - | - | - | - | - | - | - | 7:35 | - | - | - | - | - | - | - | 7:35 | - | - | - | - | - | - | - | 7:35 | - | - | - |
| Sunset | - | - | 5:20 | - | - | - | - | - | - | - | 5:19 | - | - | - | - | - | - | - | 5:17 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:14 | - |
 |  | |  |  | |  | |  |  | |  | | | | | | | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | 1 | 4 | 17 | 21 | 8 | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 17 | 17 | 14 | 15 | 17 | 17 | 18 | 16 | 17 | 18 | 12 | 10 | 10 | 9 | 9 | 10 | 13 | 13 | 10 | 10 | 7 | 7 | 7 | 10 | 14 | 14 | 12 | 11 | 11 | 11 | 9 | 10 | 13 | 13 | 11 | 10 | 9 | 9 | 9 | 10 | 14 | 14 | 12 | 10 | 10 | 9 | 8 | 9 | 14 | 14 | 11 | 11 | 12 | 12 | 12 | 12 | 16 | 15 | 13 |
| Feels °C (?) | 14 | 14 | 14 | 12 | 13 | 14 | 13 | 14 | 16 | 17 | 16 | 9 | 7 | 7 | 6 | 6 | 7 | 10 | 10 | 8 | 8 | 4 | 4 | 4 | 8 | 12 | 12 | 9 | 9 | 10 | 9 | 7 | 8 | 12 | 12 | 10 | 8 | 7 | 7 | 6 | 8 | 13 | 12 | 11 | 8 | 8 | 7 | 5 | 7 | 13 | 13 | 9 | 9 | 10 | 10 | 10 | 10 | 15 | 14 | 12 |
- 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 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.
Nearest