Banks Peninsula - Magnet Bay surf break

Banks Peninsula - Magnet Bay surfForecast / Canterbury / New Zealand

information circle12 Day Weather and Surf, issued 11 am Tuesday 16 Sep 2025 NZST
Forecast update in hr  min  s Forecast update imminent
Banks Peninsula - Magnet Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Banks Peninsula - Magnet Bay sea temperature is
10.4° C
(Which is 1.2°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Banks Peninsula - Magnet Bay this week:

The surf forecast for Banks Peninsula - Magnet Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 16) at 6PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.5m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Banks Peninsula - Magnet Bay in the next 12 days are 2.3m 14s and forecast to arrive on Friday (Sep 19) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Wednesday (Sep 17) at 12PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 16th Sep)3.5ft (1.0m) 8s
Best Surf 6AM (Fri 19th Sep)10ft (3.0m) 9s
Most Powerful 9PM (Fri 19th Sep)7.5ft (2.3m) 14s

Table - best surf conditions forecast for Banks Peninsula - Magnet Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 9mm), mostly falling on Thu afternoon. Very mild (max 19°C on Wed afternoon, min 6°C on Thu night). Winds decreasing (strong winds from the NW on Tue night, calm by Thu morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 15°C on Sun morning, min 6°C on Fri night). Winds decreasing (strong winds from the N on Sat night, calm by Sun afternoon).

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
2
1
0
0
1
0
0
0
4
4
4
3
2
0
0
1
0
0
1
0
Swell
Height Map
Wave Height (m) & direction (?)
1.1
SSW
1.1
SSW
0.9
SSW
0.8
SSW
0.7
S
0.7
S
0.6
S
0.5
S
3
SSW
2.5
SSW
1.9
S
2.1
S
1.7
S
1.4
S
0.8
S
0.3
SSW
0.9
ENE
0.5
S
0.7
ENE
0.4
SSW
0.4
SSW
Period(s) (?)1399101099139910131211101681591514
Wave
Graph
(?)Metric surfscale
Energy (?)4583322231751099587173140710601248144287747515010015519414712774
Wind
(km/h)
10
ESE
20
ENE
20
NNW
30
N
40
NW
10
NE
20
WNW
10
SSW
25
SSW
5
WSW
15
ENE
15
NNE
10
NNW
10
NNE
40
N
15
NW
5
SSW
15
NW
15
WNW
5
E
15
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offcross-
off
cross-
off
crossoffcross-
on
oncross-
on
glassoffcross-
off
cross-
off
cross-
off
cross-
off
crossglasscrosscrosscross-
off
cross-
off
High Tide
/ height (m)
11:07AM
1.91
11:32PM
1.78
12:06PM
1.93
12:28AM
1.81
12:58PM
1.94
1:19AM
1.84
1:45PM
1.94
2:04AM
1.85
2:29PM
1.93
2:47AM
1.85
3:10PM
1.90
3:29AM
1.84
3:50PM
1.85
Low Tide
/ height (m)
5:20PM
0.28
5:40AM
0.20
6:16PM
0.26
6:34AM
0.18
7:08PM
0.24
7:25AM
0.17
7:55PM
0.22
8:11AM
0.17
8:39PM
0.22
8:56AM
0.18
9:21PM
0.23
9:38AM
0.21
10:01PM
0.25
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Sunrise6:30--6:28--6:26--6:24--6:22--6:20--6:18--
Sunset-6:17--6:19--6:20--6:21--6:22--6:22--6:24-
clear
clear
cloud
part cloud
part cloud
clear
part cloud
thunderstorm
mod rain
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
Rain (mm)
-------36------------
Temp. °C12121618191212127787121414151511131412
Feels °C (?)108612111079144391151113810128
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Eyeball surf reportRecent Eyeball Surf Reports for Canterbury

  1. weather stationWind Update The wind is still cross-off at Banks Peninsula - Magnet Bay (gales from the E at CHGPC Allandale 29 km from Banks Peninsula - Magnet Bay). 1.1m 8s swell from the SSW with a 0.5m 13s groundswell, also from the SSW and a 0.4m 3s local chop, also from the E as well as a 0.3m 11s groundswell, also from the ESE. 4 swells combining to make bigger set waves.

    Banks Peninsula - Magnet Bay
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29 km away, 1 h 4 min ago

65 km/h
E
0.0
10.4
Air / Water (°C)
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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 12 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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