Banks Peninsula - Magnet Bay surf break

Banks Peninsula - Magnet Bay surfForecast / Canterbury / New Zealand

information circle12 Day Weather and Surf, issued 6 am Sunday 11 Jan 2026 NZDT
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
18.8° C
(Which is 4.7°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 Monday (Jan 12) at 7AM. The primary swell is predicted to be 3.5m and 9s period with a secondary swell of 0.1m and 15s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Banks Peninsula - Magnet Bay in the next 12 days are 3.0m 10s and forecast to arrive on Monday (Jan 12) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Saturday (Jan 17) at 4PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Mon 12th Jan)11ft (3.5m) 9s
Best Surf 7AM (Mon 12th Jan)11ft (3.5m) 9s
Most Powerful 4PM (Mon 12th Jan)10ft (3.0m) 10s

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 5mm), mostly falling on Sun night. Warm (max 27°C on Sun morning, min 12°C on Sun night). Winds decreasing (fresh winds from the S on Sun night, calm by Tue night).

Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Fri night. Very mild (max 19°C on Wed afternoon, min 14°C on Fri night). Wind will be generally light.

Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
!
!
3
2
2
0
1
1
1
1
1
1
2
2
1
1
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.3
SSW
1
WNW
1.3
SSW
3
SSW
3
SSW
2
S
1.6
S
1.4
S
1
S
0.8
SSE
0.7
SSE
0.8
ENE
0.8
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.8
SSW
0.7
SSW
0.6
SSW
0.6
SSW
1
ENE
Period(s) (?)115139101110101099813131313121110106
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2247595156419028904843471881108676192253249242195135828371
Wind
(km/h)
30
NW
20
W
30
S
15
SSW
10
SE
15
NE
5
ENE
10
ESE
10
SW
5
W
15
E
10
NE
5
W
10
S
5
SSE
10
ESE
10
ESE
5
NNE
5
ESE
5
SE
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on
cross-
on
cross-
on
crossoffglasscross-
off
onglasscross-
off
offcross-
on
cross-
on
cross-
on
cross-
off
cross-
off
glassglasscrosscross-
off
High Tide
/ height (m)
11:05AM
1.65
11:39PM
1.64
12:00PM
1.61
12:33AM
1.64
12:52PM
1.59
1:23AM
1.66
1:40PM
1.60
2:09AM
1.70
2:25PM
1.62
2:52AM
1.75
3:07PM
1.65
3:33AM
1.79
3:47PM
1.68
Low Tide
/ height (m)
5:16PM
0.38
5:42AM
0.46
6:05PM
0.42
6:34AM
0.49
6:52PM
0.44
7:23AM
0.50
7:38PM
0.43
8:10AM
0.49
8:23PM
0.41
8:56AM
0.46
9:06PM
0.38
9:39AM
0.43
9:49PM
0.34
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunrise5:58--6:00--6:01--6:03--6:03--6:05--6:05--
Sunset-9:12--9:12--9:10--9:10--9:09--9:09--9:08-
clear
clear
light rain
part cloud
part cloud
part cloud
cloud
clear
cloud
cloud
clear
part cloud
part cloud
cloud
cloud
light rain
light rain
mod rain
light rain
light rain
heavy rain
Rain (mm)
--5------------14105513
Temp. °C272519141514171815171916181816161615151515
Feels °C (?)242316101212161615171617171717151615161515
  • 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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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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