Whites Bay surfForecast / Kaikoura and Marlborough / New Zealand

information circle16 Day Weather and Surf, issued 5 am Wednesday 20 May 2026 NZST
Forecast update in hr  min  s Forecast update imminent
Whites Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Whites Bay sea temperature is
12.8° C
(Which is slightly cooler than normal)

Best Forecast Surf Conditions for Whites Bay this week:

The surf forecast for Whites Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 22) at 9PM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.4m and 5s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Whites Bay in the next 16 days are 1.2m 18s and forecast to arrive on Monday (May 25) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Thursday (May 21) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 22nd May)1.5ft (0.5m) 9s
Best Surf 9PM (Sun 24th May)3.5ft (1.1m) 17s
Most Powerful12AM (Mon 25th May)4ft (1.2m) 18s

Table - best surf conditions forecast for Whites Bay over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Fri morning. Very mild (max 15°C on Thu morning, min 8°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Mon afternoon, min 9°C on Sun night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
1
1
0
0
1
2
3
2
2
2
2
2
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
9
0.2
SSE
9
0.1
E
13
0.1
E
13
0.1
S
13
0.7
S
4
0.7
SSE
5
0.4
SSE
9
0.4
SSE
13
0.5
S
13
0.5
S
12
0.5
S
13
0.8
SSE
14
0.8
SSE
16
1.2
SSE
18
1.1
SSE
14
1.1
SSE
14
1
SSE
13
1
SSE
12
1
SSE
12
0.9
SSE
12
Wave Graph
Metric surfscale
Energy kJ
23
8
3
4
3
12
27
28
59
82
70
86
261
324
890
536
478
361
323
323
196
Wind (km/h)
15
NW
20
NNW
15
NW
20
NW
25
NNW
10
SSE
5
S
10
NNW
15
WNW
5
S
10
ESE
10
SW
5
SW
5
ENE
10
WNW
15
NW
20
NNW
15
NW
10
WNW
10
NNW
10
SSE
off
off
off
off
off
on
glassy
off
off
glassy
on
cross
cross
glassy
cross-off
off
off
off
off
off
cross-on
High Tide
9:04AM1.75m
9:28PM1.88m
10:02AM1.74m
10:25PM1.82m
10:58AM1.71m
11:22PM1.75m
11:51AM1.67m
00:20AM1.68m
12:44PM1.63m
1:14AM1.63m
1:37PM1.58m
2:06AM1.59m
2:31PM1.56m
2:57AM1.56m
Low Tide
3:09PM0.22m
3:49AM0.25m
4:06PM0.23m
4:45AM0.27m
5:03PM0.25m
5:41AM0.30m
5:59PM0.29m
6:36AM0.34m
6:54PM0.35m
7:31AM0.37m
7:49PM0.41m
8:22AM0.40m
8:46PM0.46m
clear
clear
clear
part cloud
cloud
cloud
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
light rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:30
7:31
7:31
7:33
7:33
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:09
5:08
5:07
5:07
5:07
5:06
5:06
1
1
20
Temp °C
13
14
13
15
15
15
10
11
11
13
13
11
13
15
11
15
16
12
16
17
11
9
10
9
11
11
14
9
9
9
12
11
10
12
14
9
11
12
9
14
15
10
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
9
0.2
SSE
9
0.1
SE
8
0.1
S
10
0.1
S
10
0.2
NNE
4
0.7
SSE
5
0.5
SSE
5
0.4
S
9
0.5
S
13
0.5
S
12
0.5
S
13
0.8
SSE
14
0.8
SSE
16
1.2
SSE
18
1.1
SSE
14
1.1
SSE
14
1
SSE
13
1
SSE
12
1
SSE
12
0.9
SSE
12
Energy kJ
23
8
3
2
2
1
27
14
25
82
70
86
261
324
890
536
478
361
323
323
196
Swell 2
Height (m)
Direction
Period (s)
0.2
S
7
0.1
E
14
0.1
E
13
0.1
E
13
0.1
S
13
0.1
NW
4
0.2
SSE
10
0.4
SSE
9
0.4
SSE
13
0.2
E
4
0.4
S
9
0.1
NW
10
0.6
S
17
0.3
ESE
4
0.2
SSE
20
0.2
ENE
10
0.4
SE
17
0.2
ENE
10
0.2
ENE
10
0.5
ENE
4
Energy kJ
4
4
3
3
3
1
10
28
59
1
27
4
195
3
37
10
74
10
10
7
Swell 3
Height (m)
Direction
Period (s)
0.1
E
15
0.1
S
14
0.1
N
6
0.1
S
13
0.1
E
12
0.1
N
6
0.1
S
16
0.1
S
16
0.3
SE
5
0.1
SE
9
0.1
SE
12
0.1
SE
11
0.1
N
10
0.1
N
10
0.1
E
6
0.2
ENE
10
0.2
ENE
10
Energy kJ
4
4
1
4
3
1
5
5
3
3
5
5
2
2
1
9
10
Wind waves
Height (m)
Direction
Period (s)
0.6
N
3
0.8
N
4
0.8
NNW
4
0.9
NNW
4
0.9
NNW
4
0.7
S
4
0.3
N
2
0.3
SSW
3
0.5
S
4
0.4
SSE
4
0.4
SE
3
0.3
ESE
4
0.6
N
4
0.9
N
4
0.7
NNW
4
0.5
N
3
0.5
N
3
0.9
NNE
8
Energy kJ
7
18
16
20
28
12
1
2
10
6
3
3
12
23
12
6
6
100
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
2
1
1
1
1
1
2
2
2
3
2
2
2
2
2
3
Distance (km)
99
116
166
68
69
55
55
55
0
0
84
51
51
0
0
0
0
0
0
0
55
Best forecast wave conditions in Kaikoura and Marlborough
Rating
(10 max)
1
1
2
1
1
2
3
3
4
4
3
3
3
3
Best forecast wave conditions in New Zealand
Rating
(10 max)
2
2
1
3
2
4
4
4
3
5
6
9
6
5
5
4
4
3
3
3
4
Header Global
Rating
(10 max)
5
5
4
4
4
4
4
5
7
5
6
9
6
5
5
4
4
5
5
5
5
  • 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 Whites Bay Surf forecast

The above surf forecast table for Whites Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Whites Bay can be found by selecting the local surf guide option on the grey menu. Our Whites 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 (Whites 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 Whites 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.

Whites Bay is 16 km (10 miles) from the city of Blenheim. If you plan a holiday in Kaikoura and Marlborough, look for hotels and other accommodation in Blenheim. Blenheim has rooms for a wide range of budgets as well as car hire and transport links.

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