Banks Peninsula - Magnet Bay Surf Break

Lat Long: 43.87° S 172.80° E

Banks Peninsula - Magnet Bay Surf Forecast and Surf Report

Issued: 5 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Banks Peninsula - Magnet Bay sea temperature is
10.5°C
1.4° 

Banks Peninsula - Magnet Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Banks Peninsula - Magnet Bay surf forecast from 13 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 6PM (local time) - 11ft (3.5m), 7s period, SSW swell with glassy winds.
  • Most powerful swell: Sunday 20 Sep, 12AM (local time) - 18ft (5.5m), 11s period, SSW swell with 7,539 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 3AM (local time) - 6.5ft (2.0m), 12s 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 Monday (Sep 14) at 3AM. The primary swell is predicted to be 2.0m and 12s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Banks Peninsula - Magnet Bay in the next 16 days are 5.5m 11s and forecast to arrive on Sunday (Sep 20) 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 0.8m 5s period and expected on Thursday (Sep 17) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 14th Sep)6.5ft (2.0m) 12s
Best Surf 6PM (Sat 19th Sep)11ft (3.5m) 7s
Most Powerful12AM (Sun 20th Sep)18ft (5.5m) 11s

Table - best surf conditions forecast for Banks Peninsula - Magnet Bay over the next 16 days.


Short Range Forecast

Mostly dry. Very mild (max 15°C on Tue morning, min 8°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Wed night. Very mild (max 14°C on Sat morning, min 7°C on Wed night). Wind will be generally light.

Sun
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
2
3
2
1
1
1
0
0
0
0
1
2
2
2
3
3
2
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SSW
11
2.2
S
12
1.7
S
11
1.1
SSW
11
1.2
S
9
0.8
S
8
0.5
SSW
9
0.4
SSW
13
0.3
SSW
13
0.4
SSW
14
1.5
SSE
5
0.5
SSW
13
0.4
SSW
15
0.5
S
16
0.7
SE
13
1
S
15
1.2
SSW
14
1.2
SSW
15
1.9
SSW
15
5.5
SSW
11
Wave Graph
Metric surfscale
Energy kJ
1598
1369
676
260
244
86
45
56
34
62
126
101
79
134
167
453
631
639
1646
7539
Wind (km/h)
5
S
10
NNE
10
WNW
10
E
5
NNE
5
NNE
5
NE
10
NNW
15
WNW
15
SSE
20
SSE
15
SSE
10
SE
10
ENE
0
WSW
5
SSE
10
N
10
NNW
15
SW
20
SSW
Wind State
glassy
cross-off
cross-on
cross-off
off
cross-off
off
cross-off
cross
cross-on
cross
cross
cross
off
glassy
cross
cross-off
cross-off
on
cross-on
High Tide
5:27AM1.89m
5:51PM1.83m
6:17AM1.82m
6:40PM1.73m
7:09AM1.75m
7:33PM1.64m
8:05AM1.69m
8:30PM1.58m
9:04AM1.65m
9:29PM1.54m
10:02AM1.63m
10:27PM1.53m
Low Tide
11:19PM0.17m
11:46AM0.21m
00:08AM0.24m
12:37PM0.31m
00:58AM0.33m
1:30PM0.40m
1:50AM0.40m
2:24PM0.47m
2:43AM0.46m
3:19PM0.52m
3:36AM0.49m
4:12PM0.53m
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
light rain
light rain
light rain
cloud
clear
clear
part cloud
part cloud
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:31
6:30
6:28
6:26
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:15
6:16
6:17
6:19
6:20
6:21
 mm
3
2
1
2
Temp °C
11
9
13
14
11
15
15
12
13
12
9
8
8
9
11
12
9
14
14
10
Feels °C
9
7
11
11
8
13
13
9
10
9
7
4
5
8
10
10
7
11
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)
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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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