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Clarence River Surf Forecast
/ Kaikoura and Marlborough (12 surf breaks) /
Clarence River surfForecast / Kaikoura and Marlborough / New Zealand
12 Day Weather and Surf, issued 5 am Sunday 20 Jul 2025 NZST
Best Forecast Surf Conditions for Clarence River this week:
The surf forecast for Clarence River over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 20) at 12PM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Clarence River in the next 12 days are 1.3m 12s and forecast to arrive on Tuesday (Jul 22) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Jul 22) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sun 20th Jul) | 4.5ft (1.3m) 11s |
| Best Surf | 6PM (Tue 22nd Jul) | 4.5ft (1.3m) 12s |
| Most Powerful | 6PM (Tue 22nd Jul) | 4.5ft (1.3m) 12s |
Table - best surf conditions forecast for Clarence River over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 10°C on Sun morning, min 7°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 13°C on Fri afternoon, min 8°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||
| 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) (?) | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 419 | 335 | 268 | 247 | 253 | 250 | 253 | 450 | 569 | 471 | 421 | 292 | 271 | 207 | 162 | 123 | 99 | 135 | 168 | 182 | 108 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | off | glass | cross- off | off | off | cross- off | cross- off | glass | cross- off | cross- off | glass | glass | cross- on | cross- on | on | cross- on | cross | glass | cross- off |
High Tide / height (m) | 12:31PM 1.54 | 12:56AM 1.45 | 1:28PM 1.58 | 1:53AM 1.46 | 2:25PM 1.62 | 2:50AM 1.46 | 3:21PM 1.64 | 3:45AM 1.47 | 4:16PM 1.65 | 4:39AM 1.46 | 5:09PM 1.64 | 5:33AM 1.45 | 6:02PM 1.62 | ||||||||
Low Tide / height (m) | 6:49PM 0.14 | 7:08AM 0.10 | 7:48PM 0.13 | 8:04AM 0.09 | 8:46PM 0.12 | 9:00AM 0.08 | 9:44PM 0.12 | 9:56AM 0.07 | 10:40PM 0.11 | 10:51AM 0.07 | 11:34PM 0.11 | 11:45AM 0.08 | 12:27AM 0.12 | ||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||
| Sunrise | 7:45 | - | - | 7:43 | - | - | 7:43 | - | - | 7:43 | - | - | 7:41 | - | - | 7:41 | - | - | 7:39 | - | - |
| Sunset | - | 5:15 | - | - | 5:15 | - | - | 5:16 | - | - | 5:17 | - | - | 5:19 | - | - | 5:20 | - | - | 5:21 | - |
 | |  | |  |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 10 | 8 | 9 | 9 | 8 | 10 | 10 | 9 | 11 | 11 | 9 | 11 | 10 | 8 | 12 | 13 | 10 | 14 | 14 | 12 |
| Feels °C (?) | 8 | 8 | 4 | 7 | 6 | 4 | 6 | 7 | 6 | 7 | 8 | 6 | 8 | 7 | 5 | 7 | 7 | 6 | 12 | 11 | 8 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Kaikoura and Marlborough
The wind is still cross-off at Clarence River (light winds from the W at KaikouraAws 36 km from Clarence River). 1.3m 11s groundswell from the ESE with a 0.4m 4s local chop from the SSW. Swells combining to make to make bigger set waves.
36 km away, 35 min ago
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 Clarence River 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 Clarence River Surf forecast
The above surf forecast table for Clarence River provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Clarence River can be found by selecting the local surf guide option on the grey menu. Our Clarence River 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 (Clarence River) 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 Clarence River 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.
Clarence River is 70 km (43 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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