Surf Forecasts:
Banks Peninsula - Magnet Bay surf forecast from 16 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 3AM (local time) - 13ft (4.0m), 15s period, S swell with onshore winds.
- Most powerful swell: Wednesday 19 Aug, 12AM (local time) - 13ft (4.0m), 14s period, S swell with 7,173 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 3AM (local time) - 13ft (4.0m), 15s period with S 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 Wednesday (Aug 19) at 3AM. The primary swell is predicted to be 4.0m and 15s period with a secondary swell of 0.2m and 10s. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Banks Peninsula - Magnet Bay in the next 16 days are 4.0m 14s and forecast to arrive on Wednesday (Aug 19) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Aug 23) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 19th Aug) | 13ft (4.0m) 15s |
| Best Surf | 3AM (Wed 19th Aug) | 13ft (4.0m) 15s |
| Most Powerful | 12AM (Wed 19th Aug) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Banks Peninsula - Magnet Bay over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun morning. Mild temperatures (max 9°C on Tue morning, min 5°C on Sun night). Winds increasing (light winds from the WNW on Mon morning, strong winds from the SW by Tue morning). | Days 4-6 Weather SummarySome drizzle, heaviest during Wed morning. Very mild (max 11°C on Fri afternoon, min 7°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 9 | SSW 10 | S 14 | S 14 | S 14 | S 12 | S 10 | S 10 | S 16 | S 14 | SSW 12 | S 11 | SSW 11 | S 11 | S 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 385 | 787 | 1092 | 752 | 596 | 269 | 2144 | 3986 | 7173 | 5446 | 3248 | 1095 | 625 | 556 | 422 | 1018 | 537 | 286 | 202 | 149 | 127 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | on | cross-on | on | on | on | on | on | on | on | glassy | off | cross-off | glassy | cross-off | cross | off | cross-off |
High Tide | 6:22PM1.92m | 6:48AM1.85m | 7:14PM1.81m | 7:44AM1.77m | 8:08PM1.71m | 8:41AM1.70m | 9:06PM1.63m | 9:41AM1.66m | 10:05PM1.58m | 10:40AM1.65m | 11:02PM1.57m | 11:34AM1.66m | 11:54PM1.58m | ||||||||
Low Tide | 12:14PM0.12m | 00:43AM0.17m | 1:07PM0.22m | 1:34AM0.25m | 2:02PM0.33m | 2:26AM0.33m | 2:57PM0.42m | 3:19AM0.40m | 3:52PM0.48m | 4:12AM0.45m | 4:46PM0.51m | 5:03AM0.47m | 5:37PM0.52m | ||||||||
 |  |  |  | |  | | | |  | | | | | | | | | | | | |
 | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — |
 | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — |
mm | 1 | — | — | — | — | 2 | — | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 7 | 8 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 7 | 10 | 11 | 9 | 14 | 14 | 14 |
Feels °C | 0 | 1 | 1 | 3 | 4 | 0 | -1 | 1 | 2 | 4 | 6 | 7 | 7 | 7 | 4 | 9 | 10 | 5 | 11 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | E 10 | E 10 | ESE 12 | S 14 | S 14 | S 12 | S 10 | S 10 | S 10 | S 14 | SSW 12 | S 11 | SSW 11 | S 11 | S 10 |
| kJ | 385 | 787 | 1092 | 752 | 596 | 269 | 71 | 33 | 15 | 4506 | 2802 | 1095 | 625 | 556 | 327 | 1018 | 537 | 286 | 202 | 149 | 127 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | ENE 10 | SE 7 | SE 7 | ESE 8 | E 11 | SE 13 | — | — | SE 12 | — | SE 12 | SE 11 | S 17 | S 16 | ESE 12 | ESE 11 | ESE 11 | ESE 10 | ESE 15 | ESE 14 |
| kJ | 32 | 36 | 105 | 65 | 42 | 108 | 27 | — | — | 23 | — | 22 | 20 | 50 | 422 | 13 | 12 | 12 | 10 | 22 | 18 |
Swell 3 Height (m) Direction Period (s) | S 20 | ESE 12 | ENE 9 | E 9 | E 10 | SE 7 | — | — | — | E 11 | — | E 10 | E 9 | E 9 | ESE 12 | ESE 12 | E 8 | NNE 6 | E 16 | E 9 | SSW 12 |
| kJ | 69 | 15 | 48 | 42 | 68 | 14 | — | — | — | 3 | — | 16 | 15 | 6 | 14 | 13 | 1 | 4 | 5 | 2 | 14 |
Wind waves Height (m) Direction Period (s) | S 6 | S 6 | — | W 3 | — | SW 5 | SSW 9 | SSW 10 | S 14 | S 14 | S 14 | — | — | — | NNE 3 | — | — | NW 3 | N 4 | NNE 2 | N 4 |
| kJ | 267 | 247 | — | 1 | — | 70 | 2144 | 3986 | 7173 | 5446 | 3248 | — | — | — | 1 | — | — | 3 | 2 | 1 | 18 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 33 | 206 | 28 | 4 | 26 | 28 | 33 | 235 | 33 | 33 | 30 | 30 | 30 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 4 |
Best forecast wave conditions in Canterbury | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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