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Surf Forecasts:

Banks Peninsula - Magnet Bay surf break

Banks Peninsula - Magnet Bay surfForecast / Canterbury / New Zealand

information circle12 Day Weather and Surf, issued 6 pm Saturday 17 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
17.3° C
 (Which is 2.8°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 Sunday (Jan 18) at 7PM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.6m and 11s. 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 12 days are 4.5m 11s and forecast to arrive on Thursday (Jan 22) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Wednesday (Jan 21) at 7PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sun 18th Jan)3.5ft (1.1m) 8s
Best Surf 1PM (Thu 22nd Jan)10ft (3.0m) 9s
Most Powerful 7PM (Thu 22nd Jan)15ft (4.5m) 11s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 16°C on Mon afternoon, min 10°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 43mm), heaviest during Thu morning. Very mild (max 19°C on Thu afternoon, min 12°C on Tue night). Mainly strong winds.

Sat
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
1
1
1
1
1
1
1
2
2
2
2
1
!
!
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.8
SSE
1.7
SSE
1.4
SE
1.1
SE
0.9
SE
0.6
SSW
0.6
SSW
0.6
SSW
0.4
SSW
0.6
S
0.9
SSW
0.7
S
0.9
S
1.6
ENE
2.2
ENE
3.5
ENE
3
E
2.3
E
1.9
E
2.3
SSW
3
SSW
Period(s) (?)8888810991013121312789121312912
Wave
Graph
(?)Metric surfscale
Energy kJ (?)424374244135857165624112523616725125864319682361169710628902767
Wind
(km/h)
20
S
15
SSW
10
S
10
SSE
10
NE
5
NE
15
E
5
NE
5
ESE
15
E
15
NE
15
NE
25
NE
15
NE
40
NE
15
NNE
0
WNW
20
S
25
SSW
45
SSW
40
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		crossoffglasscross-
off		glasscross-
off		cross-
off		offoffoffoffoffoffglasscross-
on		cross-
on		onon
High Tide
/ height (m)
4:13AM
1.83
4:27PM
1.70
4:52AM
1.85
5:06PM
1.71
5:31AM
1.85
5:45PM
1.71
6:10AM
1.85
6:25PM
1.71
6:51AM
1.82
7:07PM
1.70
7:33AM
1.80
7:53PM
1.69
8:19AM
1.76
Low Tide
/ height (m)
9:49PM
0.34
10:22AM
0.39
10:31PM
0.30
11:04AM
0.36
11:14PM
0.27
11:46AM
0.34
11:56PM
0.25
12:28PM
0.32
12:40AM
0.25
1:12PM
0.32
1:25AM
0.27
1:57PM
0.31
2:14AM
0.29
Sat
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sunrise--6:07--6:09--6:09--6:11--6:13--6:13--6:15
Sunset9:08--9:08--9:07--9:07--9:06--9:06--9:05--
part cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
mod rain
heavy rain
rain showers
part cloud
light rain
heavy rain
light rain
light rain
Rain (mm)
-------------8313-11151
Temp. °C141213141215161215151416171718191715121212
Feels °C (?)10910121013131013121212131412201611734
  • 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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View detailed surf forecast for Banks Peninsula - Magnet Bay at:
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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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