Back Beach Surf Break

Lat Long: 39.07° S 174.02° E

Back Beach 48 hour detailed Surf Forecast

Issued: 11 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Back Beach sea temperature is
14.2° C
0.7° 

Back Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Back Beach today (18 Aug):

  • Morning surf: Morning surf (18 Aug, local time) - 5ft (1.5m), 14s period with WSW swell.
  • Afternoon surf: Afternoon surf (18 Aug, local time) - 5.5ft (1.7m), 13s period with WSW swell.
  • Evening surf: Evening surf (18 Aug, local time) - 5ft (1.6m), 11s period with WSW swell.

The current surf forecast for Back Beach at 4AM is: 1.5m 14s primary swell from a West-southwest direction (forecast issued at 11:00pm August 17). The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (NZST) & DateWave HeightWave Period
Morning (18 Aug)5ft (1.5m)14s
Afternoon (18 Aug)5.5ft (1.7m)13s
Evening (18 Aug)5ft (1.6m)11s

Table - waves today at Back Beach. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 13°C on Thu morning, min 7°C on Mon night). Wind will be generally light.

Tuesday
18
Wednesday
19
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
3
3
3
3
2
3
0
2
2
2
2
3
4
3
4
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
WSW
14
1.6
WSW
14
1.6
WSW
14
1.5
WSW
14
1.5
WSW
14
1.5
WSW
14
1.7
WSW
13
1.7
WSW
13
1.6
WSW
11
1.6
WSW
11
1.5
WSW
11
1.4
WSW
11
1.4
WSW
11
1.1
WSW
16
1.2
WSW
16
1.3
WSW
16
1.3
WSW
15
Wave Graph
Metric surfscale
Energy kJ
1130
996
969
904
866
841
950
1011
571
560
480
433
458
604
679
817
786
Wind (km/h)
5
S
10
SE
10
SE
5
SSE
10
S
5
WSW
20
SW
20
SW
20
SE
20
SSE
15
SSE
15
SSE
10
SSE
15
SSE
15
SSE
10
SSE
5
S
Wind State
cross
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
00:57AM3.25m
1:19PM3.09m
1:35AM3.02m
2:00PM2.91m
Low Tide
6:53PM0.60m
7:18AM0.61m
7:35PM0.82m
7:57AM0.80m
8:20PM1.04m
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:47
5:49
 mm
Temp °C
7
7
7
7
9
11
12
10
8
9
9
9
10
11
12
10
10
Feels °C
4
3
4
4
6
8
6
5
3
4
5
5
6
6
8
7
8
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Back Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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