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Blue Duck Stream Surf Forecast
/ Kaikoura and Marlborough (12 surf breaks) /
Surf Forecasts:
Blue Duck Stream surfForecast / Kaikoura and Marlborough / New Zealand
16 Day Weather and Surf, issued 11 am Friday 22 May 2026 NZSTForecast update in hr min s Forecast update imminent
Blue Duck Stream surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Blue Duck Stream sea temperature is
13.2° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Blue Duck Stream this week:
The surf forecast for Blue Duck Stream over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 22) at 6PM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 13s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Blue Duck Stream in the next 16 days are 2.4m 14s and forecast to arrive on Wednesday (May 27) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Tuesday (May 26) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 22nd May) | 2ft (0.6m) 9s |
| Best Surf | 3AM (Mon 25th May) | 4.5ft (1.4m) 15s |
| Most Powerful | 9AM (Wed 27th May) | 8ft (2.4m) 14s |
Table - best surf conditions forecast for Blue Duck Stream over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Fri night, min 10°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue afternoon. Very mild (max 15°C on Mon morning, min 9°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
S 9 | S 9 | SSW 13 | S 12 | S 11 | S 15 | S 14 | S 14 | S 16 | S 14 | S 13 | S 13 | S 12 | S 12 | S 11 | S 14 | S 14 | S 14 | S 13 | S 14 | S 15 | |
16 | 79 | 173 | 108 | 163 | 446 | 494 | 383 | 853 | 906 | 796 | 630 | 416 | 273 | 507 | 2314 | 1945 | 1161 | 1127 | 1575 | 2153 | |
Wind (km/h) | |||||||||||||||||||||
cross | cross | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross-off | glassy | glassy | cross-off | cross | cross | cross | cross | cross-on | off | cross-off | cross-on | glassy | |
High Tide | 9:21AM1.54m | 9:51PM1.70m | 10:20AM1.51m | 10:48PM1.64m | 11:18AM1.49m | 11:43PM1.57m | 12:14PM1.46m | 00:37AM1.51m | 1:07PM1.44m | 1:27AM1.45m | 1:57PM1.44m | 2:16AM1.40m | 2:44PM1.44m | ||||||||
Low Tide | 3:32PM0.03m | 4:14AM0.05m | 4:30PM0.07m | 5:10AM0.08m | 5:27PM0.11m | 6:03AM0.11m | 6:23PM0.16m | 6:54AM0.15m | 7:16PM0.21m | 7:42AM0.19m | 8:08PM0.25m | 8:29AM0.22m | 8:58PM0.27m | ||||||||
 |  |  | | |  | | | |  | | | |  |  | | | | | | | |
 | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — |
 | — | 5:07 | — | — | 5:06 | — | — | 5:06 | — | — | 5:05 | — | — | 5:04 | — | — | 5:04 | — | — | 5:02 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | |
Temp °C | 14 | 16 | 17 | 13 | 14 | 11 | 13 | 13 | 12 | 15 | 15 | 14 | 11 | 10 | 9 | 12 | 12 | 12 | 13 | 13 | 11 |
11 | 13 | 16 | 12 | 12 | 8 | 11 | 11 | 10 | 13 | 14 | 11 | 6 | 7 | 7 | 10 | 10 | 10 | 11 | 11 | 9 | |
Swell 1 Height (m) Direction Period (s) | SSE 4 | S 9 | SSW 13 | S 12 | S 11 | S 15 | S 14 | S 14 | S 16 | S 14 | S 13 | S 13 | S 12 | S 12 | S 11 | S 14 | S 14 | S 14 | S 13 | S 14 | S 15 |
 kJ | 12 | 79 | 173 | 108 | 163 | 446 | 494 | 383 | 853 | 906 | 796 | 630 | 416 | 273 | 507 | 2314 | 1945 | 1161 | 1127 | 1575 | 2153 |
Swell 2 Height (m) Direction Period (s) | S 9 | E 11 | ENE 4 | SE 11 | SE 12 | NE 11 | ENE 10 | S 16 | NE 11 | ENE 10 | ENE 10 | NE 10 | ENE 10 | ENE 10 | S 15 | ENE 10 | ENE 10 | ENE 10 | NE 10 | NE 5 | NE 10 |
| kJ | 16 | 2 | 7 | 5 | 5 | 5 | 10 | 132 | 30 | 42 | 41 | 48 | 38 | 19 | 218 | 20 | 20 | 20 | 27 | 7 | 17 |
Swell 3 Height (m) Direction Period (s) | ENE 7 | SE 4 | SE 11 | NE 4 | NE 12 | SE 11 | SE 11 | ENE 10 | — | ENE 4 | NE 4 | S 16 | — | ENE 10 | ENE 10 | — | NE 10 | — | ENE 10 | ENE 11 | NNE 5 |
| kJ | 5 | 2 | 5 | 1 | 6 | 5 | 5 | 9 | — | 3 | 5 | 46 | — | 38 | 20 | — | 27 | — | 22 | 11 | 8 |
Wind waves Height (m) Direction Period (s) | NE 6 | ENE 3 | — | S 4 | — | — | — | — | NE 3 | NE 4 | — | — | SSW 3 | S 6 | — | — | — | — | — | — | — |
| kJ | 6 | 9 | — | 9 | — | — | — | — | 5 | 9 | — | — | 10 | 139 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 122 | 133 | 0 | 0 | 10 | 0 | 10 | 10 | 0 | 0 | 0 | 0 | 15 | 15 | 4 | 10 | 10 | 0 | 0 | 10 | 0 |
Best forecast wave conditions in Kaikoura and Marlborough | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 Blue Duck Stream 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 Blue Duck Stream Surf forecast
The above surf forecast table for Blue Duck Stream provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Blue Duck Stream can be found by selecting the local surf guide option on the grey menu. Our Blue Duck Stream 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 (Blue Duck Stream) 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 Blue Duck Stream 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.
Blue Duck Stream is 86 km (53 miles) from the city of Blenheim. If you plan a holiday in Kaikoura and Marlborough, look for hotels and other accommodation in Blenheim. Blenheim has rooms for a wide range of budgets as well as car hire and transport links.
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