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Surf Forecasts:
Onekaka surfForecast / Nelson – Tasman Bay / New Zealand
48hr Weather and Surf, issued 11 pm Tuesday 05 May 2026 NZSTForecast update in hr min s Forecast update imminent
Onekaka surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Onekaka sea temperature is
16.1° C
(Which is normal for this time of year)| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 May) | - | - |
| Afternoon (06 May) | 1.5ft (0.5m) | 6s |
| Evening (06 May) | - | - |
Table - waves today at Onekaka. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 72mm), heaviest during Fri afternoon. Very mild (max 19°C on Wed afternoon, min 9°C on Tue night). Winds increasing (calm on Wed morning, fresh winds from the N by Fri afternoon). | ||||||||||||||||||||||||
Wednesday 6 | Thursday 7 | Friday 8 | ||||||||||||||||||||||
9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
W 14 | N 11 | N 10 | N 10 | N 6 | W 16 | NNW 6 | N 6 | N 6 | N 6 | N 6 | N 6 | N 6 | N 6 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | N 8 | N 8 | N 9 | |
0 | 0 | 0 | 0 | 0 | 0 | 18 | 77 | 0 | 0 | 30 | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | off | glassy | glassy | cross-on | cross | cross-off | off | off | glassy | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 11:34PM4.20m | 11:53AM3.75m | 00:07AM3.98m | 12:36PM3.59m | 00:45AM3.73m | 1:25PM3.44m | ||||||||||||||||||
Low Tide | 5:23AM0.74m | 5:58PM0.84m | 5:59AM0.90m | 6:42PM1.00m | 6:43AM1.09m | |||||||||||||||||||
 | |  |  |  | | | | | | |  |  |  |  |  |  | | | | | | |  | |
 | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — |
 | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:28 | — |
— | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 3 | 6 | 10 | 5 | 3 | 4 | 7 | 4 | 7 | 4 | 15 | |
Temp °C | 9 | 11 | 12 | 13 | 14 | 18 | 19 | 16 | 15 | 15 | 15 | 15 | 16 | 17 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 |
7 | 8 | 10 | 12 | 14 | 16 | 16 | 15 | 14 | 14 | 15 | 15 | 15 | 16 | 14 | 15 | 15 | 16 | 16 | 15 | 15 | 15 | 14 | 10 | |
Swell 1 Height (m) Direction Period (s) | N 4 | — | N 6 | N 6 | N 6 | N 5 | NNE 5 | N 6 | N 6 | N 6 | W 16 | W 16 | W 15 | W 15 | W 15 | — | — | W 15 | NW 15 | NW 15 | W 15 | — | W 14 | — |
 kJ | 1 | — | 1 | 1 | 2 | 5 | 10 | 39 | 31 | 30 | 5 | 5 | 5 | 4 | 4 | — | — | 4 | 9 | 9 | 4 | — | 4 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | N 10 | — | N 10 | N 10 | W 16 | W 16 | W 16 | N 10 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 2 | — | 2 | 2 | 5 | 5 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 14 | N 11 | N 10 | — | N 10 | W 16 | W 16 | N 10 | N 10 | N 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 2 | 2 | — | 2 | 5 | 5 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 3 | — | — | — | — | — | NNW 6 | N 6 | — | — | N 6 | N 6 | N 6 | N 6 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | N 8 | N 8 | N 9 |
| kJ | 1 | — | — | — | — | — | 18 | 77 | — | — | 30 | 110 | 178 | 166 | 173 | 303 | 321 | 247 | 253 | 311 | 368 | 454 | 829 | 2003 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 29 | 24 | 24 | 24 | 24 | 29 | 29 | 24 | 24 | 24 | 91 | 73 | 68 | 194 | 239 | 194 | 194 | 190 | 195 | 195 | 194 | 196 | 201 | 251 |
Best forecast wave conditions in Nelson - Tasman Bay | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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