Surf Forecasts:
Clarence River surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 6AM (local time) - 11ft (3.5m), 15s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 6AM (local time) - 11ft (3.5m), 15s period, S swell with 5,906 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 9PM (local time) - 2ft (0.6m), 7s period with ENE swell.
Best Forecast Surf Conditions for Clarence River this week:
The surf forecast for Clarence River over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 9PM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.5m and 8s. Another secondary swell of 0.8m and 5s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Clarence River in the next 16 days are 3.5m 15s and forecast to arrive on Wednesday (Aug 19) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Aug 15) at 9PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 13th Aug) | 2ft (0.6m) 7s |
| Best Surf | 6AM (Wed 19th Aug) | 11ft (3.5m) 15s |
| Most Powerful | 6AM (Wed 19th Aug) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Clarence River over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 16°C on Thu afternoon, min 10°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Sat night. Very mild (max 11°C on Tue morning, min 5°C on Sat night). Winds decreasing (strong winds from the SW on Sat night, light winds from the SSW by Mon morning). | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | NNE 6 | N 5 | ENE 7 | ENE 8 | ENE 8 | E 8 | SSW 17 | E 8 | SSW 6 | S 8 | S 8 | SSE 8 | SE 8 | SE 10 | ESE 11 | S 8 | S 8 | S 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 208 | 170 | 85 | 59 | 79 | 58 | 90 | 94 | 105 | 339 | 808 | 746 | 542 | 388 | 535 | 573 | 546 | 459 | 3780 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | off | cross-off | glassy | off | off | off | off | off | off | off | cross-off | off | off | cross-off | cross-off |
High Tide | 4:34AM1.51m | 5:05PM1.68m | 5:29AM1.52m | 6:00PM1.66m | 6:25AM1.51m | 6:54PM1.61m | 7:20AM1.50m | 7:47PM1.55m | 8:14AM1.48m | 8:40PM1.49m | 9:08AM1.46m | 9:32PM1.43m | |||||||
Low Tide | 10:32PM0.05m | 10:47AM-0.00m | 11:28PM0.04m | 11:44AM-0.00m | 00:23AM0.04m | 12:40PM0.02m | 1:16AM0.05m | 1:36PM0.06m | 2:08AM0.08m | 2:31PM0.11m | 2:58AM0.13m | 3:25PM0.17m | |||||||
 |  |  | | | |  | |  |  |  | |  | | | | | | | |
 | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:11 | — | — |
 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — |
mm | — | — | — | — | — | — | — | — | — | 7 | 2 | 1 | 1 | — | — | — | — | — | — |
Temp °C | 12 | 15 | 16 | 14 | 13 | 12 | 11 | 11 | 11 | 9 | 7 | 7 | 6 | 8 | 9 | 8 | 11 | 11 | 11 |
Feels °C | 8 | 12 | 14 | 13 | 10 | 9 | 10 | 8 | 6 | 2 | -3 | -3 | -2 | 3 | 4 | 4 | 3 | 3 | 7 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | E 8 | E 7 | E 8 | E 8 | ENE 9 | E 9 | SSW 15 | SE 8 | SE 10 | ESE 11 | ESE 10 | SE 9 | S 11 |
| kJ | 208 | 82 | 43 | 59 | 79 | 58 | 90 | 78 | 105 | 48 | 15 | 58 | 308 | 388 | 535 | 573 | 320 | 128 | 2564 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 8 | ESE 8 | ESE 7 | ESE 8 | ESE 8 | ESE 14 | SSW 17 | SSW 16 | ESE 11 | E 8 | ESE 12 | E 9 | SSW 15 | ESE 15 | S 13 | — | E 10 | ESE 10 |
| kJ | 35 | 57 | 50 | 31 | 22 | 32 | 20 | 94 | 83 | 38 | 12 | 15 | 26 | 288 | 21 | 126 | — | 49 | 59 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | SSE 9 | NNE 6 | SE 10 | SE 13 | ESE 13 | S 18 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ENE 10 | ESE 15 | — | — | — | S 16 | — |
| kJ | 28 | 16 | 12 | 15 | 26 | 17 | 24 | 17 | 17 | 17 | 17 | 15 | 19 | 23 | — | — | — | 20 | — |
Wind waves Height (m) Direction Period (s) | NNE 5 | NNE 6 | N 5 | NNE 5 | SW 3 | S 4 | — | SSW 2 | SSW 4 | SSW 6 | S 8 | S 8 | SSE 8 | SSE 7 | SSW 14 | S 7 | S 8 | S 8 | S 11 |
| kJ | 6 | 170 | 85 | 17 | 5 | 7 | — | 1 | 16 | 339 | 808 | 746 | 542 | 327 | 346 | 120 | 546 | 459 | 3780 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 10 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 177 | 53 | 180 | 35 | 0 | 0 | 0 | 96 | 180 | 24 |
Best forecast wave conditions in Kaikoura and Marlborough | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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 16 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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