Surf Forecasts:
Banks Peninsula - Magnet Bay surf forecast from 9 Aug 2026:
- Best quality surf: Thursday 13 Aug, 3AM (local time) - 7.5ft (2.3m), 8s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 12AM (local time) - 8ft (2.5m), 7s period, SSW swell with 764 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 3AM (local time) - 5ft (1.6m), 8s period with SE swell.
Best Forecast Surf Conditions for Banks Peninsula - Magnet Bay this week:
The surf forecast for Banks Peninsula - Magnet Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 3AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.5m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Banks Peninsula - Magnet Bay in the next 16 days are 2.5m 7s and forecast to arrive on Monday (Aug 17) 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 2.4m 8s period and expected on Wednesday (Aug 12) at 6PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 11th Aug) | 5ft (1.6m) 8s |
| Best Surf | 3AM (Thu 13th Aug) | 7.5ft (2.3m) 8s |
| Most Powerful | 12AM (Mon 17th Aug) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Banks Peninsula - Magnet Bay over the next 16 days.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon morning. Very mild (max 12°C on Wed afternoon, min 7°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the NE by Wed morning). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sat night. Very mild (max 15°C on Thu afternoon, min 6°C on Sat night). Winds increasing (calm on Thu morning, strong winds from the SSW by Sat night). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
AM | PM | 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) | SSE 9 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | S 18 | S 18 | S 16 | SSW 16 | SSW 15 | SSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 90 | 135 | 390 | 253 | 188 | 116 | 430 | 518 | 623 | 284 | 212 | 382 | 419 | 168 | 138 | 408 | 632 | 555 | 416 | 375 | 764 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | off | off | off | off | off | off | off | glassy | glassy | on | on | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:16PM2.04m | 1:37AM1.92m | 2:10PM2.11m | 2:30AM1.98m | 3:02PM2.15m | 3:22AM2.02m | 3:53PM2.14m | 4:13AM2.02m | 4:42PM2.10m | 5:04AM1.99m | 5:32PM2.02m | 5:56AM1.93m | 6:22PM1.92m | ||||||||
Low Tide | 7:28PM0.17m | 7:46AM0.03m | 8:23PM0.11m | 8:41AM-0.03m | 9:17PM0.06m | 9:35AM-0.05m | 10:09PM0.04m | 10:28AM-0.03m | 11:00PM0.06m | 11:21AM0.03m | 11:51PM0.10m | 12:14PM0.12m | 00:43AM0.17m | ||||||||
 |  |  |  |  | |  | | | | | | | | | | |  | | |  | |
 | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | — | — | 7:22 | — | — |
 | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — |
mm | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 | 3 | 2 | 2 |
Temp °C | 10 | 9 | 8 | 9 | 10 | 10 | 11 | 12 | 12 | 14 | 15 | 13 | 12 | 11 | 9 | 10 | 9 | 9 | 6 | 7 | 6 |
Feels °C | 5 | 5 | 5 | 6 | 6 | 4 | 6 | 7 | 8 | 13 | 14 | 12 | 9 | 9 | 8 | 9 | 7 | 5 | -4 | -2 | -3 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 7 | SSE 10 | SSE 9 | SSE 9 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | S 18 | S 16 | E 9 | E 9 | E 9 |
| kJ | 90 | 135 | 390 | 253 | 188 | 116 | 32 | 29 | 8 | 284 | 212 | 238 | 201 | 168 | 138 | 114 | 632 | 555 | 162 | 157 | 103 |
Swell 2 Height (m) Direction Period (s) | ESE 6 | SE 13 | SE 12 | SE 12 | SE 11 | SE 11 | S 15 | S 20 | S 18 | SSW 16 | SSW 17 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | S 18 | E 8 | E 8 | SSW 16 | SSW 15 | SE 16 |
| kJ | 17 | 45 | 92 | 65 | 31 | 18 | 18 | 7 | 25 | 51 | 57 | 83 | 42 | 44 | 101 | 408 | 90 | 88 | 416 | 375 | 10 |
Swell 3 Height (m) Direction Period (s) | NE 7 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | S 10 | SW 9 | S 15 | SE 14 | ESE 14 | SE 14 | SE 13 | SE 13 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ENE 9 | SE 13 | ESE 12 | ESE 12 |
| kJ | 12 | 41 | 35 | 16 | 13 | 8 | 3 | 4 | 8 | 19 | 29 | 27 | 27 | 19 | 20 | 17 | 17 | 75 | 26 | 15 | 14 |
Wind waves Height (m) Direction Period (s) | SW 5 | SSW 5 | — | — | — | NE 5 | ENE 7 | ENE 7 | ENE 8 | — | — | ENE 8 | ENE 8 | — | NE 8 | — | — | — | SW 4 | SSW 5 | SSW 7 |
| kJ | 59 | 38 | — | — | — | 73 | 430 | 518 | 623 | — | — | 382 | 419 | — | 128 | — | — | — | 22 | 72 | 764 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 26 | 30 | 4 | 0 | 0 | 0 | 84 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 28 | 206 | 206 |
Best forecast wave conditions in Canterbury | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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Information about the Banks Peninsula - Magnet Bay Surf forecast
The above surf forecast table for Banks Peninsula - Magnet Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Banks Peninsula - Magnet Bay can be found by selecting the local surf guide option on the grey menu. Our Banks Peninsula - Magnet Bay 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 (Banks Peninsula - Magnet Bay) 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 Banks Peninsula - Magnet Bay 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.
Are you planning a holiday in Canterbury? If you are looking for accommodation near Banks Peninsula - Magnet Bay, camping, hotels and holiday cottages in Canterbury, consider staying in Christchurch which is 37 km (23 miles) away.
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