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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 pm Wednesday 09 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 Thursday (Jul 10) at 3AM. The primary swell is predicted to be 1.9m and 12s period with a secondary swell of 0.3m and 9s. Another secondary swell of 1.3m and 5s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Clarence River in the next 12 days are 4.5m 10s and forecast to arrive on Saturday (Jul 12) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Saturday (Jul 12) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 10th Jul) | 6ft (1.9m) 12s |
| Best Surf | 12AM (Thu 17th Jul) | 5.5ft (1.7m) 11s |
| Most Powerful | 12AM (Sat 12th Jul) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Clarence River over the next 12 days.
Wed 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Mon 21 | ||||||||||||||||||||||||
| 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 | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 11 | 11 | 11 | 11 | 12 | 12 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 17 | 10 | 9 | 14 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 234 | 734 | 926 | 867 | 729 | 1020 | 1431 | 6295 | 1998 | 1606 | 1197 | 773 | 688 | 574 | 687 | 788 | 510 | 439 | 420 | 372 | 267 | 781 | 1226 | 750 | 651 | 383 | 209 | 163 | 130 | 83 | 72 | 106 | 98 | 116 | 75 | 129 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross | cross- on | on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- on | cross | cross | cross- off | cross- off | cross- off | glass | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross | cross | off | cross |
High Tide / height (m) | 3:52PM 1.42 | 4:11AM 1.29 | 4:36PM 1.45 | 4:56AM 1.30 | 5:21PM 1.47 | 5:41AM 1.31 | 6:07PM 1.49 | 6:26AM 1.31 | 6:52PM 1.49 | 7:13AM 1.33 | 7:39PM 1.50 | 8:01AM 1.34 | 8:27PM 1.49 | 8:52AM 1.37 | 9:16PM 1.48 | 9:44AM 1.40 | 10:08PM 1.47 | 10:39AM 1.44 | 11:03PM 1.46 | 11:35AM 1.49 | 11:59PM 1.46 | 12:31PM 1.54 | 12:56AM 1.45 | |||||||||||||
Low Tide / height (m) | 10:10PM 0.32 | 10:16AM 0.28 | 10:57PM 0.29 | 11:02AM 0.25 | 11:43PM 0.27 | 11:48AM 0.22 | 12:30AM 0.24 | 12:35PM 0.20 | 1:16AM 0.21 | 1:23PM 0.18 | 2:02AM 0.19 | 2:12PM 0.17 | 2:50AM 0.16 | 3:03PM 0.16 | 3:38AM 0.14 | 3:57PM 0.15 | 4:28AM 0.13 | 4:53PM 0.15 | 5:20AM 0.12 | 5:50PM 0.15 | 6:13AM 0.11 | 6:49PM 0.14 | 7:08AM 0.10 | |||||||||||||
Wed 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Mon 21 | ||||||||||||||||||||||||
| Sunrise | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:48 | - | - | 7:48 | - | - | 7:48 | - | - | 7:47 | - | - | 7:47 | - | - | 7:46 | - | - | 7:45 | - | - | 7:43 |
| Sunset | 5:07 | - | - | 5:07 | - | - | 5:07 | - | - | 5:08 | - | - | 5:09 | - | - | 5:09 | - | - | 5:10 | - | - | 5:12 | - | - | 5:13 | - | - | 5:14 | - | - | 5:15 | - | - | 5:15 | - | - |
 |  |  | |  | |  |  |  | | | |  | | | | | |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 12 | 10 | - | - | - | - | 1 | 1 | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
| Temp. °C | 12 | 12 | 15 | 16 | 12 | 13 | 13 | 13 | 14 | 15 | 12 | 13 | 13 | 11 | 14 | 14 | 12 | 14 | 13 | 12 | 12 | 12 | 10 | 14 | 13 | 13 | 11 | 10 | 9 | 12 | 13 | 11 | 14 | 14 | 10 | 10 |
| Feels °C (?) | 6 | 7 | 13 | 13 | 9 | 8 | 8 | 6 | 10 | 11 | 9 | 8 | 6 | 6 | 11 | 11 | 9 | 10 | 8 | 9 | 9 | 9 | 6 | 11 | 11 | 10 | 7 | 7 | 6 | 9 | 10 | 6 | 10 | 10 | 6 | 6 |
Short Range Forecast: Heavy rain (total 22mm), heaviest during Fri afternoon. Very mild (max 16°C on Thu afternoon, min 11°C on Wed afternoon). Winds increasing (light winds from the N on Thu morning, strong winds from the NNE by Fri night). | Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 15°C on Sat afternoon, min 10°C on Sat night). Winds decreasing (fresh winds from the NNE on Sun afternoon, light winds from the WNW by Mon night). | Days 6-9 Weather Summary Some drizzle, heaviest during Tue afternoon. Very mild (max 14°C on Thu morning, min 9°C on Wed night). Winds decreasing (fresh winds from the NNE on Tue afternoon, calm by Thu afternoon). | Long Range Forecast: Some drizzle, heaviest during Sun night. Very mild (max 14°C on Sun morning, min 7°C on Fri night). Winds increasing (calm on Fri afternoon, fresh winds from the SW by Sun night). | |||||||||||||||||||||||||||||||||
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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 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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