Banks Peninsula - Magnet Bay Surf Break

Banks Peninsula - Magnet Bay Surf Forecast and Surf Report

Lat Long: 43.87° S 172.80° E

Issued: 11 am 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Banks Peninsula - Magnet Bay sea temperature is
12.0° C

2.2°C warmer than normal for this time of year

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 18 Jun 2026:

  • Best quality surf: Monday 22 Jun, 6PM (local time) - 10ft (3.0m), 18s period, S swell with offshore winds.
  • Most powerful swell: Monday 22 Jun, 6PM (local time) - 10ft (3.0m), 18s period, S swell with 5,191 kJ wave energy.
  • Next surfable swell (1★+): Thursday 18 Jun, 9PM (local time) - 7ft (2.1m), 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 Thursday (Jun 18) at 9PM. The primary swell is predicted to be 2.1m and 15s period with a secondary swell of 1.5m and 15s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Banks Peninsula - Magnet Bay in the next 16 days are 3.0m 18s and forecast to arrive on Monday (Jun 22) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Saturday (Jun 20) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 18th Jun)7ft (2.1m) 15s
Best Surf 6PM (Mon 22nd Jun)10ft (3.0m) 18s
Most Powerful 6PM (Mon 22nd Jun)10ft (3.0m) 18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 22mm), heaviest during Sat night. Warm (max 21°C on Sat afternoon, min 8°C on Thu morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 11°C on Sun morning, min 8°C on Tue morning). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
4
4
4
2
0
1
0
2
2
2
4
5
5
3
2
3
3
3
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
S
11
1.6
S
11
2.3
S
16
2.2
S
16
1.8
S
14
1.4
S
12
1
S
12
0.8
S
15
0.8
SSW
13
0.9
SSW
12
0.9
SSW
11
1.2
S
11
1.7
SSW
13
2.5
S
18
2.5
S
16
1.9
S
14
1.6
S
13
1.3
S
12
1.1
S
11
0.7
S
20
0.9
SSW
16
Wave Graph
Metric surfscale
Energy kJ
555
640
2702
2413
1243
574
274
272
239
206
225
377
1011
4160
3197
1403
888
472
284
396
448
Wind (km/h)
5
SW
10
WNW
10
NNE
15
NNE
5
NNW
20
N
25
N
15
NW
20
SE
5
SSE
10
ESE
10
E
10
ENE
10
NE
20
NE
5
WNW
5
WSW
5
SSW
5
ESE
5
E
15
SW
Wind State
on
cross
cross-off
off
cross-off
cross-off
cross-off
cross
cross
glassy
cross-off
cross-off
off
off
off
cross
on
glassy
glassy
glassy
on
High Tide
6:24PM2.13m
6:48AM1.94m
7:22PM2.05m
7:48AM1.88m
8:20PM1.96m
8:48AM1.82m
9:18PM1.87m
9:49AM1.77m
10:15PM1.79m
10:48AM1.74m
11:10PM1.73m
11:42AM1.72m
00:02AM1.68m
Low Tide
12:09PM-0.02m
00:48AM0.08m
1:07PM0.03m
1:45AM0.11m
2:05PM0.09m
2:41AM0.15m
3:02PM0.17m
3:35AM0.20m
3:58PM0.26m
4:28AM0.25m
4:53PM0.33m
5:19AM0.30m
5:45PM0.39m
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
heavy rain
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
light rain
light rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:02
8:02
8:03
8:03
8:03
8:03
8:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:57
4:57
4:57
4:57
4:57
4:58
4:58
 mm
22
2
3
8
Temp °C
9
10
9
10
13
17
19
21
13
11
10
9
10
10
10
10
9
9
9
8
9
Feels °C
7
7
7
7
9
13
14
18
9
10
8
7
7
7
6
7
7
7
7
6
3
Swell 1
Height (m)
Direction
Period (s)
1.5
S
11
1.6
S
11
2.3
S
16
2.2
S
16
1.8
S
14
1.4
S
12
1
S
12
0.8
S
15
0.8
SSW
13
0.9
SSW
12
0.9
SSW
11
1.2
S
11
1.7
SSW
13
2.5
S
18
2.5
S
16
1.9
S
14
1.6
S
13
1.3
S
12
1.1
S
11
0.9
ENE
8
0.9
SSW
16
Energy kJ
555
640
2702
2413
1243
574
274
272
239
206
225
377
1011
4160
3197
1403
888
472
284
87
448
Swell 2
Height (m)
Direction
Period (s)
0.6
S
15
0.8
S
15
0.1
SE
19
0.4
NE
6
0.1
E
14
0.8
NE
7
0.7
SE
4
0.4
NE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
9
0.4
NE
9
0.8
ENE
6
0.8
ENE
8
1
ENE
8
0.7
S
20
0.9
ENE
9
Energy kJ
155
271
14
8
4
57
18
26
10
9
8
21
34
83
137
396
113
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
E
11
0.1
E
18
0.1
SE
18
0.1
SE
16
0.2
ENE
14
0.6
ENE
10
0.3
ESE
4
0.1
NE
7
0.1
SE
14
0.1
E
14
1
S
11
0.3
S
24
0.6
SSW
14
Energy kJ
5
2
7
12
11
18
67
3
2
8
4
253
97
145
Wind waves
Height (m)
Direction
Period (s)
0.5
NNE
3
0.6
NE
5
0.8
NNW
4
1.4
NNE
5
0.2
ESE
4
0.6
NE
3
1
NE
5
1.3
NE
6
1
S
10
1.7
SSW
6
Energy kJ
5
16
18
107
1
6
47
108
202
173
Nearest Offshore or Glassy
Rating
(10 max)
3
3
4
4
4
2
2
2
1
2
2
2
4
5
5
4
2
3
3
3
2
Distance (km)
26
4
0
0
0
4
4
4
118
0
0
0
0
0
0
4
28
0
0
0
28
Best forecast wave conditions in Canterbury
Rating
(10 max)
3
3
4
4
4
3
2
3
1
2
2
2
4
5
5
4
3
3
3
3
4
Best forecast wave conditions in New Zealand
Rating
(10 max)
3
4
9
5
5
4
4
4
3
4
4
4
5
6
7
4
4
3
5
3
4
Header Global
Rating
(10 max)
5
4
9
5
6
8
4
4
5
9
9
7
5
6
7
5
5
8
9
9
9
  • 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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