Surf Forecast Surf Report
Sumner Bar surf break

Sumner Bar surfForecast / Canterbury / New Zealand

information circle12 Day Weather and Surf, issued 11 am Thursday 24 Apr 2025 NZST
Forecast update in hr  min  s Forecast update imminent
Sumner Bar surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sumner Bar sea temperature is
15.6° C
(Which is 3.5°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Sumner Bar this week:

The surf forecast for Sumner Bar over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Apr 30) at 12PM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.3m and 8s. Another secondary swell of 0.1m and 10s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Sumner Bar in the next 12 days are 0.5m 21s and forecast to arrive on Tuesday (Apr 29) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 15s period and expected on Monday (Apr 28) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Wed 30th Apr)1.5ft (0.5m) 16s
Best Surf12PM (Wed 30th Apr)1.5ft (0.5m) 16s
Most Powerful 3AM (Tue 29th Apr)1.5ft (0.5m) 21s

Table - best surf conditions forecast for Sumner Bar over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
ENE
0.7
ENE
0.4
ENE
0.3
SSE
0.3
SSE
0.4
ENE
0.4
ENE
0.5
ENE
0.4
ENE
0.5
ENE
0.5
ENE
0.5
ENE
0.5
ENE
0.4
ENE
0.4
ENE
0.3
SSE
0.2
SSE
0.2
SSE
0.2
SSE
0.6
SSE
0.8
SSE
0.3
SSE
0.6
ENE
0.6
ENE
0.7
ENE
0.8
E
0.8
E
0.7
E
0.6
E
0.5
E
0.5
E
0.5
E
0.7
E
0.6
E
0.6
E
0.6
E
Period(s) (?)111111171810101010109999918161312168141211111111111011121213121211
Wave
Graph
(?)Metric surfscale
Energy (?)711053757603333623558464448313065251714166903810798126151146112766365741631049885
Wind
(km/h)
15
NE
15
NE
10
ENE
10
ENE
10
E
5
W
5
WNW
10
E
10
W
5
WNW
5
E
5
E
10
WSW
10
S
15
ESE
15
ENE
10
E
10
SW
5
SSE
5
E
10
WSW
10
ESE
10
SE
5
SE
10
ENE
15
ENE
15
ENE
5
ENE
5
E
5
ESE
5
E
15
E
15
ENE
20
NE
20
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
on
oncross-
on
cross-
off
glasscross-
on
cross-
off
glasscross-
on
glasscross-
off
cross-
off
cross-
on
cross-
on
cross-
on
offglassglasscross-
off
crosscrosscrosscross-
on
ononglassglassglasscross-
on
cross-
on
onononon
High Tide
/ height (m)
1:07PM
2.21
1:32AM
2.31
1:59PM
2.32
2:25AM
2.39
2:53PM
2.42
3:21AM
2.46
3:49PM
2.52
4:19AM
2.49
4:49PM
2.59
5:19AM
2.49
5:50PM
2.65
6:19AM
2.47
6:49PM
2.67
7:20AM
2.44
7:46PM
2.64
8:19AM
2.41
8:40PM
2.56
9:14AM
2.37
9:35PM
2.45
10:07AM
2.32
10:31PM
2.34
10:58AM
2.25
11:26PM
2.25
Low Tide
/ height (m)
7:16PM
0.44
7:47AM
0.37
8:12PM
0.37
8:39AM
0.31
9:11PM
0.32
9:35AM
0.29
10:09PM
0.29
10:33AM
0.28
11:08PM
0.30
11:31AM
0.28
12:07AM
0.32
12:28PM
0.31
1:07AM
0.35
1:25PM
0.35
2:05AM
0.38
2:22PM
0.39
3:02AM
0.43
3:18PM
0.44
3:57AM
0.47
4:14PM
0.49
4:51AM
0.52
5:07PM
0.54
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Sunrise7:11--7:13--7:13--7:15--7:16--7:16--7:18--7:20--7:20--7:22--7:22--7:24--
Sunset-5:40--5:39--5:37--5:37--5:35--5:34--5:32--5:30--5:30--5:28--5:27--5:25-
clearclearclearclearclearclearclearclearclearclearclearclearclearcloudcloudcloudpart cloudpart cloudcloudcloudmod rainmod rainlight rainpart cloudcloudpart cloudlight rainlight raincloudpart cloudpart cloudclearclearclearclearpart cloud
Rain (mm)
--------------------861---52--------
Temp. °C111111121313131313151513171613131313131211101010121212121212121312121212
Feels °C (?)778101012101013131311141412111112121110878989111111101110888

Short Range Forecast: Mostly dry. Very mild (max 13°C on Fri afternoon, min 10°C on Thu morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Mon morning, min 11°C on Mon night). Wind will be generally light.

Days 6-9 Weather Summary Heavy rain (total 20mm), heaviest during Thu morning. Very mild (max 13°C on Wed morning, min 9°C on Thu afternoon). Wind will be generally light.

Long Range Forecast: Light rain (total 2mm), mostly falling on Sat morning. Very mild (max 13°C on Sun afternoon, min 11°C on Sat morning). Wind will be generally light.

  • 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 Sumner Bar Surf forecast

The above surf forecast table for Sumner Bar provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Sumner Bar can be found by selecting the local surf guide option on the grey menu. Our Sumner Bar 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 (Sumner Bar) 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 Sumner Bar 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 Sumner Bar, camping, hotels and holiday cottages in Canterbury, consider staying in Christchurch which is 7 km (4 miles) away.

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